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Emerge Tools Profile picture
@emergetools
Mar 12, 2024 • 3 tweets • 2 min read • Read on X
The more apps we look at, the more common this problem seems

Many apps are putting file paths for images & icons, which VoiceOver will pronounce as "slash" or "underscore"

Here's an example we found in the @AlaskaAir app (sound on) + more examples 👇
Here's the annotated Preview for the video above + a handful of other Previews w/ the same issue

We used our accessibility screenshots and an AI to surface problems. For Alaska, there are 20+ Previews that use file paths in VOPreview with 'spotsaver_logo' & 'modal_close_button' as VO
Preview with 'alert_schedulechange_icon' as VO
Preview with 'auro/interface/chevron-right' as VO
🧵 w/ more detail on how this works

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More from @emergetools

Emerge Tools Profile picture
Sep 18
Do we know why the Tesla iOS app is 760 MB? Can it be made smaller? Does a bear...nvm

This is a fun one, b/c the Tesla app does something not many other apps do

🔬 Taking a look at Tesla's app size + exploring Image
Immediately what jumps out is that ~30% of the app is `Tesla.pck` (241.2 MB)

A .pck is a file format for bundling Godot assets (scenes, scripts, shaders, etc)

Out of all the app's that we download, this is *by far* the largest .pck included in an app Image
We can see Godot included in all of Tesla's plugins + the main app target

This is how Tesla creates 3d model interactivity in the app

(remember this b/c we'll be coming back to the plugins) Image
Read 13 tweets
Emerge Tools Profile picture
Jul 9
Exactly 1 year ago today, we had our biggest tweet ever about @gmail's iOS app size

And funny enough, Gmail's size is making the rounds again

🧵 Looking at why Gmail is ~700 MB (+ why it's increased by 100 MB in the last year) Image
Here's the original thread - would recommend checking it out for more info, but TL;DR

- Large main app binary
- Localizations
- Big share extension plugin
- Overhead from having many files in the app

Over the last year, Gmail has increased by 100+ MB

Most of that is coming from increases to the areas mentioned above

2024 → 2025
📱Main App Binary: 223 MB → 285 MB
🌐Localizations: 130 MB → 150 MB Image
Read 11 tweets
Emerge Tools Profile picture
May 2
Ok, time for a bit of a rabbit hole

...or should we say... Deere hole 🤦

🧵 Looking through the @JohnDeere apps. (Pepe Silvia warning...iykyk)

p.s. l10n = localization
Some context - we were poking around our localization data and John Deere's "TractorPlus" & "Ops Center" jumped out

🚜 TractorPlus is 412 MB - 115 MB (32%) is l10n

⚙️ Ops Center is 276 MB - 114 MB (42%) is l10n

So why did this jump out?
Firstly, apps like FedEx (160 MB l10n) or Garmin Connect (90 MB) inefficiently use localizations

@Tinder recently wrote how they used Emerge to reduce size of l10n by 95%


@Airbnb did a similar optimization - we'll link to a few 🧵s at the bottommedium.com/tinder/how-the…
Read 13 tweets
Emerge Tools Profile picture
Apr 14
ask and you shall receive 🫡

🧵 figuring out why @telepass is almost half a GB Image
For those who are unfamiliar with it, Telepass is an electronic toll collection system used primarily in Italy and other parts of Europe. Here's the general breakdown

It's a flutter app 🪽
Total install size - 457 MB
Frameworks - 417 MB 🫨
Main app target - 25 MB Image
91% of install size is due to frameworks, 293 of them to be exact

There are a number of reasons that apps would have so many frameworks, but usually it's to support complex functionality in the app, or to make the app more modular and independent for teams working in parallel
Read 9 tweets
Emerge Tools Profile picture
Mar 25
What app has added the most number of dynamic frameworks in the last 3 months?

Hint: it's an old friend of ours 🤖
It's @EufyOfficial, who we wrote about a few months ago

They've added a bunch of new frameworks, but its not just that they've added a lot that's interesting, its *what* they've been adding 👀 Image
Of the new frameworks, they've added~20 RN frameworks and a handful of Flutter frameworks

Not ideal to keep adding both RN & Flutter 🤔 Image
Image
Read 7 tweets
Emerge Tools Profile picture
Mar 24
When we tweet about RN apps that have room for improvement, we often used the General Motor apps as an example

WELL NO MORE 👏👏👏

🧵 How General Motors shrunk app size by ~70% Image
We wrote a deep dive on the four GM apps roughly a year ago

In it, we detailed how they could reduce EACH app by ~200 MB
The apps went above that, reducing app size by ~300 MB

The main optimization came from renivubg TardisHybridContainer, which is where the vast majority of bloat came from in each app. Basically this was a mess of a dynamic framework w/ inefficient assets + a large jsbundle
Read 7 tweets

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