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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
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
Emerge Tools Profile picture
Mar 18
What's truly wild here is that at the beginning of 2024, the T-Life app was 37.3 MB

It's now at 475 MB

🧵 How to 10x your app size Image
Image
General breakdown

Dynamic Frameworks: 195 MB
Main app binary: 159 MB
Asset catalog: 69 MB

fwiw, each of those are bigger than the entire app was ~14 months ago 🕵 Image
basically this is what T-Life did over the last year

The app used to have a few UI & Games bundles + a slim binary and that was it

Now it's largest dynamic framework (AzureCommunicationCalling) is bigger than the entire app used to be at 65 MB
Read 9 tweets
Emerge Tools Profile picture
Feb 6
Got a few requests for this!

Let's break down the @binance crypto app 💰 Image
So there's two versions of the app we're looking at, the US version and another version shipped under "Binance Switzerland"

From what we saw, the US app is only for the US, and every other country gets the app from Binance Switzerland, probably due to different regulations Image
Image
🇺🇸 US version weighs in at 303 MB
Main app target - 98 MB
Plugins - 94 MB 👀 we'll come back to this one
Frameworks - 55 MB Image
Read 16 tweets
Emerge Tools Profile picture
Jan 23
We got multiple tags to analyze the Tapo @TPLINK app for being over 760 MB 👀

Let's see what we find in here 🤭🔎 Image
Total install size is 764 MB

204.6 MB
171.5 MB frameworks
45.4 MB main app target
27.7 MB plugins
a whole bunch of assets and localizations assets.carImage
We actually found that the current app version increased by ~162 MB compared to its previous version 🤔 so what changed?

They added @Unity along with a bunch of other stuff, mostly assets Image
Read 11 tweets
Emerge Tools Profile picture
Jan 21
It's always the banking apps huh 🤦‍♂️

Figuring out why the @UBS banking iOS app is almost 800 MB 🥲 Image
First up, an overview

Frameworks - 336 MB (43%)
Main app target - 180 MB (23%)
Plugins - 55 MB (7%)

But what really sticks out is all that red, which signifies duplicate files ❌ Image
There's a handful of really simple optimizations here which could reduce install size by 102 MB or by 13% of total install size 📉 Image
Read 15 tweets
Emerge Tools Profile picture
Jan 16
Customer: “Why is this app so big?”

Company: “Very cool features & lots of them + you have no way to check what I’m saying”

Not today corporate. Not today.

🧵 Why @ouraring is ~450 MB Image
This might be a bit long, so TL;DR

Oura is just duplicating a bunch of images, json, & localizations. The size isn’t b/c it’s “powerful with many features”

Here’s what the size actually is 👇

Assets: 207.8 MB
Localizations: 49.2 MB
JSON: 35.5 MB
Audio: 26.5 MB Image
The Oura app is mostly different bundles:

OuraImages (90.4 MB): Images
OuraComputeModels (26.1 MB): PyTorch models
Insights (16 MB): JSON files to score “sleep”, “readiness”, etc.
OuraLocalizations (12 MB): Localizations
OuraIcons (9 MB): Icons Image
Read 9 tweets

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