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UPDATE! Fewer than 20% of Lemmy Apps display posts accurately

Updated! Updates are shown in quote text like this. Some scores are updated following app updates.

An Apps Experiment

Introduction

This is an experiment I performed out of curiosity, and I have a few big disclaimers at the bottom. Basically, I’ve seen a lot of comments recently about one app or another not displaying something right. Lemmy has been around for a while now and can no longer be considered an experimental platform.

Lemmy and the apps that people use to access the platform have become an important part of people’s lives. Whether you are checking the app weekly or daily, and whether you use it to stay up on the news or to stay connected to your hobby, it’s important that it works. I hope that this helps people to see the extent of the challenge, and encourages developers to improve their apps, too.

How I did it

I wanted to investigate objectively how accurately each app displays text of posts and comments using the standard Lemmy markdown. Markdown is a standard part of the Lemmy platform, but not all apps handle it the same. It is basically what gives text useful formatting.

I used the latest release of each app, but did not include pre-releases. I only included apps that have released an update in the last 6 months, which should include most apps in active development. I was unable to test iOS-exclusive apps, so they are not included either. In all, 16 apps met the inclusion criteria.

I also added Eternity, which is in active development, although it has not had a recent update. I was able to include several iOS apps thanks to testing from @jordanlund – Thanks, Jordan! This made for 21 apps that were tested.

Each app was rated in 5 categories: Text, Format, Spoilers, Links, and Images. I chose these mostly based on the wonderful Markdown Guide from @marvin, which was posted about a year ago in !meta (here).

I checked whether each app correctly displayed each category, then took the overall average. Each category was weighted equally. Text includes italic, bold, strong, strikethrough, superscript, and subscript. Format includes block quotes, lists, code (block and inline), tables, and dividers. Spoilers includes display of hidden, expandable spoilers. Links includes external links, username links, and community links. Images included embedded images, image references, and inline images.

Thanks to input from others, I also added a test to see if lemmy hyperlinks opened in-app. There was a problem with using the SFFA Community Guide that caused some apps to be essentially penalized twice because there was formatting inside formatting, so I created this TEST POST to more clearly and fairly measure each app.

In each case, I checked whether the display was correct based on the rules for Lemmy Markdown, and consistent with the author’s intent. In cases where the app recognized the tag correctly but did not display it accurately, that was treated as a fail.

Results

Out of a possible perfect 10, only 4 apps displayed all markdown correctly:

Jerboa (Official Android client) - 10.0

Alexandrite - 10.0

Voyager - 10.0

Connect - 10.0

Photon - 10.0

Summit - 9.7

Quiblr - 9.5

Arctic - 9.3

Interstellar - 9.1

Lemmy-UI - 9.0

Thunder - 8.9

Tesseract - 8.6

mlmym - 8.0

Lemmios - 8.0

Mlem - 7.5

Boost - 7.3

Eternity - 7.0

Sync - 6.9

Lemmynade - 6.1

Avelon - 5.7

More details of testing here

Disclaimers## Disclaimers ### I Love Lemmy Apps (and their devs) Lemmy apps devs work very hard, and invest a lot in the platform. Lemmy is better because they are doing the work that they do. Like, a LOT better. Everyone who uses the platform has to access it through one app or another. Apps are the face of the entire platform. Whether an app is a FOSS passion project, underwritten by a grant, or generating income through sales or ads, no one is getting rich by making their app. It is for the benefit of the community. This is not meant to be a rating of the quality or functionality of any app. An app may have a high rating here but be missing other features that users want, or users may love an app that has a lower rating. This is just about how well apps handle markdown. ### This is pretty unscientific You’ll see my methodology above. I’m not a scientist. There is probably a much better way to do this, and I probably have biases in terms of how I went about it. I think it’s interesting and probably has some valuable information. If you think it’s interesting, let me know. If you think of a better way, PM me and I’d be happy to share what I have so you don’t have to start from scratch. ### My only goal is to help the community I do think that accurately displaying markdown should be a standard expectation of a finished app. I hope that devs use this as an opportunity to shore up the areas that are lagging, and that they have a set of standards to aim for. I don’t have any Apple thingsSorry. This is just Android and Web review. If someone would like to see how iOS apps are doing, please reach out and I’ll share how we can work together to include them.

Blaze ,

Interesting to see that even Lemmy-UI does not display markdown completely correctly

gedaliyah OP ,
@gedaliyah@lemmy.world avatar

For some reason, Lemmy-UI does not convert usernames to links: @gedaliyah

Nothing4You ,

it does, but only if you use the autocomplete feature. it’s also a bit delayed without any indicator that it’s loading.

if you type @gedal and wait a moment it’ll load @gedaliyah to be selected:

https://programming.dev/pictrs/image/a37b17be-b920-4126-85b5-dc60fad3e09a.png

gedaliyah OP ,
@gedaliyah@lemmy.world avatar

Yes, I’m not sure if that is meant to be a placeholder or a substitute for native user links. What it actually does is generate markup that converts the username into a web link, which is fine for most circumstances, but not ideal. A plaintext username should automatically link to the user. This creates an inconsistent behavior between posts depending on where (and when) they were typed.

In other words, it’s a very helpful feature, but it is not recognizing and linking usernames.

threelonmusketeers ,

It’s weird that community names are automatically rendered as links, but usernames aren’t. Isn’t it pretty much the same thing?

BentiGorlich ,
@BentiGorlich@thebrainbin.org avatar

yeah exactly. On mbin it works this way and lemmy inserting the link breaks that. But it does it for communities in the community description sometime as well, though I don't know if it is just a user "error" or a lemmy error

BentiGorlich ,
@BentiGorlich@thebrainbin.org avatar

Actually that behaviour is very annoying to other platforms. Mbin for example can only link to the lemmy server this user is on and no longer the local profile of that user.
Example:
@ user @ lemmy.instance gets converted to [@ user @ lemmy.instance](https:// lemmy.instance/u/user
so on mbin this does not open the profile of the user on the local server, but instead links the lemmy instance, so you leave your instance to view the profile.

(spaces included so this won't get converted to mentions, etc)

JackbyDev ,

Are those not two different users though? Joe at Hotmail and Joe at Gmail are different.

BentiGorlich ,
@BentiGorlich@thebrainbin.org avatar

Yes they are, but you have my profile on your server and you do not need to leave the server to view my profile...
@ user @ lemmy.instance should link to https:// mbin.instance/u/@[email protected] and not to https:// lemmy.instance/u/user

JackbyDev ,

I’ll have to try on desktop, in the app it isn’t very clear what exactly it’s looking at to see profiles.

sjmarf ,
@sjmarf@lemmy.ml avatar

Yeah, it’s rather inconsistent. I opened an issue for it a while ago.

threelonmusketeers ,

What happens if you press tab or click on the suggested item at the point in your screenshot?

For me, it inserts the link at the cursor position, but doesn’t replace the bit you’ve already typed, resulting in @gedal@[email protected].

Anyone else have this issue?

Nothing4You ,

on firefox, if i type @gedal and click or press tab once it replaces the text with @[email protected] . the behavior is the same whether i hit tab, enter or click the text.

threelonmusketeers ,

if i type @gedal and click or press tab once it replaces the text with @[email protected]

Ah, you are correct. It turns out that the issue I was encountering was a little more subtle.

If I type all the way to @gedaliyah@ and click or press tab once it replaces only the second ‘@’, resulting in @gedaliyah@[email protected].

Nothing4You ,

It’s not even just that. It seems that the extra @ acts as a separator, so you can’t even autocomplete e.g. @threelonmusketeers@sh as that’ll try to autocomplete @sh instead of taking the instance domain as part of the mention.

I’ve raised a GitHub issue for this now: github.com/LemmyNet/lemmy-ui/issues/2652

JackbyDev ,

Compare the source of your comment to the one you’re replying to. Those are two different things. I’d argue it’s a workaround of anything.

Nothing4You ,
if you want to get fancy
you can even use undocumented tables
AmbiguousProps ,

This surprisingly works on boost.

paraphrand ,

Works on Voyager.

Anafabula ,
@Anafabula@discuss.tchncs.de avatar

Tables are a very common markdown extension most(?) popular markdown parsers support them

Nothing4You ,

for sure, but they’re neither mentioned on join-lemmy.org/docs/users/02-media.html nor on the linked CommonMark tutorial.

Anafabula ,
@Anafabula@discuss.tchncs.de avatar

Which is funny because the main part of that documentation is a Markdown table

threelonmusketeers ,

Works on Thunder.

med ,

Confirmed here on android

sjmarf ,
@sjmarf@lemmy.ml avatar

Footnotes^[Hello world!] are also undocumented.

stormio ,

I wasn’t sure if Lemmuy-UI in the results list was a typo or an alternative interface. Now I know. 😄

dual_sport_dork ,
@dual_sport_dork@lemmy.world avatar

It doesn’t display headings, I know that much.

gedaliyah OP ,
@gedaliyah@lemmy.world avatar

In doing this I learned that there are “correct” but also “preferred” ways to use markdown. A heading should have a space after the # even though it is correct either way.

#

Heading

These lines may be the same or different in different apps.

dual_sport_dork ,
@dual_sport_dork@lemmy.world avatar

The thing of it is, if you just highlight some text and hit the heading button in the GUI, it doesn’t include the space.

gedaliyah OP ,
@gedaliyah@lemmy.world avatar

Interesting. I never noticed that. As I said, it’s technically correct but not preferred. I’ll see if I can post a link about this later.

maegul ,
@maegul@lemmy.ml avatar

I’m not sure #heading is valid markdown (see, eg, Daring Fireball’s “original” syntax page) … and I’ve never seen it. I’ve always understood that the space was necessary, which I think makes sense for a number of reasons TBH

So …

does not work

This does work

gedaliyah OP ,
@gedaliyah@lemmy.world avatar

I know that it works on some sites (reddit for example). Generally, it is not preferred.

maegul ,
@maegul@lemmy.ml avatar

Didn’t know it worked on reddit. Generally it seems necessary to require the space as it disambiguates headings from hashtags, and also makes the raw text more readable.

JackbyDev ,

Heading

maegul ,
@maegul@lemmy.ml avatar

Dunno … I went to the linked page in the top post and everything seemed fine to me (using Lemmy-UI)

friend_of_satan ,

Woohoo Voyager!

TomSelleck ,

Voyager gang, let’s scroll

paraphrand ,

It’s the best PWA ever made, to my knowledge.

threelonmusketeers ,

PWA?

gregor ,
@gregor@gregtech.eu avatar

Progressive web app

Aniline ,

Oh I didn’t know it was a web app, I’ve only seen it on droidify, among other “normal” apps. It looks amazing !

astropenguin5 ,

It was initially a pwa, but now it is a full and proper app, even available on Google play now!

I believe it can still be used as a pwa though.

paraphrand ,

Yup, still works great as a PWA.

steal_your_face ,
@steal_your_face@lemmy.ml avatar

Voyager da 🐐 no 🧢

Gointhefridge ,

I’ve been using Mlem since week 2 and I have no idea if I’m missing anything or not. I’ve never visited any instance on anything but Mlem.

TheRealCharlesEames ,

Same, and I suspect we are missing stuff because I’ve never seen a gif and often see a bunch of emoji (in place of a photo album? Idk)

Beaver ,
@Beaver@lemmy.ca avatar

I don’t think Mlem has link embed support

jordanlund ,
@jordanlund@lemmy.world avatar

@gedaliyah

I have an iOS device and am happy to repeat your methodology! Did you have a test thread or something with all the markdowns?

gedaliyah OP ,
@gedaliyah@lemmy.world avatar

Yes, I used the Markdown Format Guide linked above. For user and community links I used this comment, and for inline images I checked the FOSS icon here.

If you PM me screen grabs, I’ll add it.

jordanlund ,
@jordanlund@lemmy.world avatar

On it. I found 8 apps in the App store. I’ll PM you.

Arctic, Avelon, Bean, Lemmios, Mlem, Remmel, Thunder, Voyager.

There’s a 9th, CheeseBot, but it’s $2.99 and all the others are free.

gedaliyah OP ,
@gedaliyah@lemmy.world avatar

Cheesebot is a watch app I believe

threelonmusketeers ,

Who the hell is browsing Lemmy on their watch?

nokturne213 ,

People who use cheesebot.

gedaliyah OP ,
@gedaliyah@lemmy.world avatar

Some of those are Multiplatform (this should be the same across devices)

Beaver ,
@Beaver@lemmy.ca avatar

Thank you for this! I’m really going to appreciate your work.

nokturne213 ,

Bean is abandoned.

jordanlund ,
@jordanlund@lemmy.world avatar

Given the performance, that does not surprise me!

App does say it was last updated 7 months ago, but I see comments saying it’s abandoned.

nokturne213 ,

Yeah the dev took payments for the app and then vanished.

cabron_offsets ,

Voyager, bruh.

maegul ,
@maegul@lemmy.ml avatar

So what’s the technological story here? I’m guessing lemmy itself uses a particular markdown parser that could probably be extracted and used in other contexts as it’s likely written in rust and should therefore be pretty portable without too much effort.

Are other apps just using whatever markdown parser is convenient to them? Is this something that the lemmy and threadiverse community could converge on? Even the fediverse as a whole where just about every platform other than mastodon supports writing in some for of markdown … feels like a pandoc like utility could go far.

gedaliyah OP ,
@gedaliyah@lemmy.world avatar

I’m probably not the person to ask, to be honest. Lemmy as I understand it is the protocol that exchanges the information about posts, etc. The post content is stored and shared as plaintext, but Lemmy also has instructions about how a UI should interpret the text and serve it to the user.

Ideally, the same text should appear consistent across any UI. Obviously, some apps will use different fonts and colors and may interpret the style of an element differently.

maegul ,
@maegul@lemmy.ml avatar

Ideally, the same text should appear consistent across any UI. Obviously, some apps will use different fonts and colors and may interpret the style of an element differently.

Oh yea styling isn’t the issue here … it’s whether the markdown is correctly interpreted and rendered. AFAIU, lemmy doesn’t have any instructions about how to interpret the text, just some standard that they’ve chosen to use, along with their open source software for doing so (as they’ve built too clients, the default web UI and Jerboa).

Squorlple ,
@Squorlple@lemmy.world avatar

There are a lot of image/gif(?) posts that I haven’t been able to view either on the Memmy (Apple) app or in-browser with either Safari (Apple) or Google Chrome. I imagine it comes down to the file types as well as the lack of native hosting to standardize posts of different media types, but I’m not the techiest person to consult on that. One downside of the fediverse is the lack of standards for file hosting/conversion/displaying to ensure that all media can be accessed regardless of the browser/app (or, alternatively, the lack of an all-encompassing app for all devices [Jerboa sounds like the closest to this to me but it is not available for iOS yet]), as well as the self-funded nature of the instances commonly not having the budget to natively host multimedia content such as videos.

yo_scottie_oh ,

cross-posted

Minor nit pick, but did you know that Lemmy has actual cross posting functionality?

Either way, interesting study. This is the type of content that I Red er… Lemmy for, so thanks for posting. I use Voyager myself, being an Apollo refugee.

gedaliyah OP ,
@gedaliyah@lemmy.world avatar

Yeah, cross posting is another quirky Lemmy thing. AFAIK it just generates a new post with the same content, and also maybe varies by app. That could be wrong though: I’m not sure.

threelonmusketeers ,

AFAIK it just generates a new post with the same content

Yup, that is exactly what it does. So if the original post is edited, none of the changes propagate to any of the crossposts.

In my opinion, crossposts should embed the original post, not simply copy a snapshot of the content at the time the crosspost is made. That’s a Lemmy issue though, not an app issue.

WanderingVentra ,

Ya I’ve only been able to cross post on the web UI. I’ve seen apps like Jerboa and Voyager at least show cross posting correctly, I just wish they made it easier to cross-post in app.

threelonmusketeers ,

I’ve yet to find an app which uses the same Lemmy crossposting function that is in the web UI.

Microw ,

Boost has a very easy-to-handle implementation of crossposting

WanderingVentra ,

Oh nice. I don’t think I’ve tried that one yet now that I think of it.

Eggyhead ,

It’s been a month since I’ve been able to post anything from my lemmy.world account using any app.

jordanlund ,
@jordanlund@lemmy.world avatar

Weird, I use Boost all the time. Did you turn on 2FA or something? Maybe try removing and re-adding your account?

Eggyhead ,

Yeah, I added 2FA. I will try disabling it to see if anything changes.

SmokeInFog ,
@SmokeInFog@midwest.social avatar

If you’re getting that granular then you must’ve had to record the data somewhere. Did I miss where the OP is sharing their data set?

gedaliyah OP ,
@gedaliyah@lemmy.world avatar

Sure, you can DM me somewhere to share a spreadsheet. Just please keep in mind that DM in Lemmy is not encrypted.

JackbyDev ,

Just add it to the post lmao.

jordanlund , (edited )
@jordanlund@lemmy.world avatar

@gedaliyah iOS testing, not sure how you score these so I just listed out the broken stuff.

Arctic - Link opens in App. Headings fail, images fail, everything else looks fine.

Avelon - Link opens in browser, not app. Manually went to test post. Bold+Italic fails (Italic works, not Bold). Table fails. Horizontal Rule fails. Spoiler fails. Everything else looks good.

Bean - Last updated 7 months ago, comments on the app say it’s abandoned. Link opens in browser, not app. Manually went to test post. Text formatting block fails so hard, it’s not even visible(!) Heading fails. Code Block fails, Inline Code fails. Links and Image work, but not inline, only at the bottom of the post. Table fails. Horizontal rule fails.

CheeseBot - Did not test. $2.99, no free version.

Lemmios - Link opens in app. Everything looks and works great EXCEPT Spoilers.

Mlem - Link opens in browser, not app. Manually went to test post. As with Lemmios, everything looks and works great EXCEPT spoilers.

Remmel - Instant fail. No development in 2 years, unable to even add an instance or an account. Non-starter.

Thunder - Hard to test. Lots of lag for some reason. Link opens in browser, not app. Manually went to test post. That being said, EVERYTHING worked. The lag may have been because I had just linked my account. Testing everything above, then coming back to Thunder, I found it fast and responsive.

Voyager - Link opens in app. EVERYTHING worked. No notes.

So, ranking them:

Voyager - EVERYTHING worked. No notes.

Thunder - Everything worked, but laggy to start with when using a year old account with lots of data. Once it caught up, everything was fine. Would probably be great with a new account.

Lemmios - Link opens in app by default. Spoilers don’t work.

Mlem - Link opens in browser by default but is user configurable. Spoilers don’t work.

Arctic - A few minor failures.

Avelon - A few more failures than Arctic.

Bean - Hey, it works better than Remmel. Probably abandoned.

Remmel - Instant fail.

CheeseBot - Did not test. $2.99, no free version.

nokturne213 ,

Mlem - Link opens in browser, not app.

This is configurable. You can switch to have it open either way.

jordanlund ,
@jordanlund@lemmy.world avatar

Noted! I wasn’t really testing configurations, just “out of the box” functionality.

gedaliyah OP ,
@gedaliyah@lemmy.world avatar

Thanks! I’ll have a look tomorrow

prole ,

What about Boost?

jordanlund ,
@jordanlund@lemmy.world avatar

Searching the Apple app store for “lemmy” only turned up these.

shiroininja ,

Memmy is my favorite. cute name. Memmy for Lemmy

nokturne213 ,

Has Memmy started getting updates again? I thought it was abandoned.

Docus ,

Still dead, and not on iOS App Store anymore

Xylight , (edited )
@Xylight@lemm.ee avatar

Hey, I’m the Photon dev. I’d like to know which parts Photon incorrectly displayed, so far I only see tables rendering incorrectly. I’ll have this fixed soon.

Update: fixed table displays, pushed to main

Could this be updated now? 🥺 (you can test here)

NorthWestWind ,
@NorthWestWind@lemmy.world avatar

Unrelated, but photon keeps randomly redirecting pages to what is previously viewed. It has screwed me over by making me post to the wrong community.

Xylight ,
@Xylight@lemm.ee avatar

I don’t understand what this means. There are no redirect calls at all in photon other than for /comment urls, and certain layouts.

NorthWestWind ,
@NorthWestWind@lemmy.world avatar

Not exactly redirect, but sometimes it just goes back to the previous page. Maybe something to do with window.history?

It was a while ago. I haven’t used it after the incident (July 12)

xnx ,

Photon is so great i honestly feel like it should replace the default

Blisterexe ,

Agreed, translating it to french made me discover so many little features, did you knoe it can show the political bias of a linked article?

xnx ,

Thats really cool i didnt know that

randint ,
@randint@lemmy.frozeninferno.xyz avatar

Holy shit, Photon has gotten this good now? When I tried it a few months back it felt like just yet another Lemmy client. Now it feels so smooth and polished. Works great on mobile even. Thanks for making this!

xnx ,

Hey, the admin of slrpnk.net has been thinking of making Photon the default frontend but updates to it sometimes cause breaking issues? Any chance you could get into contact with them so it can become the default in a way that updates wont break it?

Blisterexe ,

tell the admin to make a post on !photon, xylight is vfry responsive.

Xylight ,
@Xylight@lemm.ee avatar

I contacted them about it.

xnx ,

Amazing, thank you!

paraphrand ,

Voyager is premo.

muntedcrocodile ,
@muntedcrocodile@lemm.ee avatar

What about eternity. Pretty sure it hasn’t been updated in ages tho.

gigachad ,

9 months ago, which is a good reason to not include it in the overview.

threelonmusketeers ,

The dev is back, and has released a beta of the next release: lemmy.toldi.eu/comment/3217386

sudoreboot ,
@sudoreboot@slrpnk.net avatar

At the very least it doesn’t handle spoilers correctly

ByteMe ,
@ByteMe@lemmy.world avatar

A new version will be out soon

SatyrSack ,

It did not fit the criteria to be included in the experiment.

I used the latest release of each app, but did not include pre-releases. I only included apps that have released an update in the last 6 months

Not only has Eternity not been updated in almost an entire year, but it is still a pre-release (v0.1.2 at the moment).

GBU_28 ,

Go voyager,

That’s a 10

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