Emerge Tools Profile picture
Nov 11, 2024 8 tweets 3 min read Read on X
We've got to stop meeting like this 😅

🧵 taking a look under the hood of the @Yelp iOS app Image
Install size weighs in at ~318 MB, but ~4 MB of that is the watch app ⌚️

High-level breakdown:

130 MB dynamic frameworks
47 MB assets
34 MB main app target binary
26 MB localizations

For reference, @GoogleMaps weighs in at ~296 MB (7% smaller) Image
Emerge found 245 images that could be optimized to help save 21 MB (~7%)

We found two nearly identical images of this woman with her dog — one with a vignette and one without. Are both images used in the app? Only Yelp could answer that 🕵️ Image
We discovered a bunch of these category.coredata.sqlite files in the app which happen to be localized databases of every business category on Yelp

Some of the business categories include squash, sex therapy, feng shui, and parasailing. Nice 🤭 Image
Another fun thing we found were these Lottie json animations for various milestones you achieve, like to recognize that you're a hot dog expert 🌭🏅
Aside from that, we didn't find much else except that another 44 MB could be saved by stripping binary symbols (😎 classic @jazzychad) Image
Thanks for tagging us @SwiftDev_UI @singhalrishi27! We love doing these 🕺

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More from @emergetools

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
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
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
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
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
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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