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A blog about building mobile apps, surviving App Review and writing push notifications that users definitely, absolutely want to receive at 3 a.m.

You can't really. This button only tells jokes.

Latest posts

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Rejected by App Review for "too many buttons"

We removed one button. Then we were rejected for "too few buttons". A memoir.

ios · 7 min
3

The perfect time to send a push is never

A/B testing across 40k users found the best open rate is a notification that says "oops, ignore that".

growth · 5 min

Dark mode in one weekend (and four more weekends)

How we learned that #000000 is not a design system.

design · 9 min

Our crash-free rate is 99.9%. The 0.1% is the CEO.

Every crash report comes from the same device. It's an iPhone 6. It's in the board room.

android · ios · 6 min
!

Writing release notes that say more than "bug fixes"

Version 4.2.1: bug fixes and performance improvements, and also we're sorry about 4.2.0.

process · 4 min

Building a widget nobody will add to their home screen

Three weeks, two frameworks and one very small calendar.

ios · 8 min

By the numbers

1287
pushes sent today
4
actually opened
38
App Review rejections
1
one-star review (from mom)
pushplzpsst… scroll down, there's more.