Number of people working on iOS apps

list.md

Purpose of this list is to gather a source of information on how many people are working on iOS application.
I often wonder how many people are behind Facebook's app or Twitter's. If you're as curious as me, please share and please add apps 😉.

* - it's a rumoured value only. Needs confirmation from someone inside the company.

1. Fishbrain - 3
2. Artsy - 5
3. Truecaller - 5
4. Lifesum - 4 or 5
5. Spotify - 50*
6. Jodel - 3
7. Working Copy - 1
8. MindNode - 4
9. Uber - over 200*

• Driver
• Rider
• EATS

10. PDF Viewer for iOS - 2
11. Lyft - 20

I'm waiting for Facebook products to get on this list ;)

PDF Viewer for iOS - 2 (The PSPDFKit PDF SDK it uses heavily has ~10 people but shares code with Android)

Uber's already at > 200 with their 3 apps (Driver, Rider, EATS)

Breather - 2.5 (one is moving between iOS/Android)

I assume (with the case of Uber) there's a significant a amount of tooling (also dependency management of shared deps) and build engineering that also contributes to this number. Would be interesting to know how those numbers are split between those disciplines.

Soundcloud, according this keynote (in Spanish) has 30 iOS developers. In the slides you can read ~20, but he says 30 (and growing up).
https://youtu.be/s1_UwtpOoJw?t=1m20s

According to a Facebook engineer there were 429 engineers working on the iOS app in a single week. Which would imply the team is bigger than that.

https://www.darkcoding.net/software/facebooks-code-quality-problem/