Mathieu Lamvohee

If you aim at nothing, you hit nothing | iOS developer 👨🏽‍💻
Currently building

[Mathieu Lamvohee @MatLamvohee]

I'm building an app called Frenzz.

It helps you stay close to the people you care about, because most friendships don't end with a fight, they fade with silence.

I'm building this solo with SwiftUI and on-device AI. Still early days.

Here's the radar — the closer a friend is to the center, the more recently you connected 👇

https://t.co/JVCqIRHNMH

[Jordi Bruin @jordibruin]

FYI, if you have more than 2 million downloads or if you’re not in the small business program you CANNOT use private cloud compute at all in your apps right now.

[Mathieu Lamvohee @MatLamvohee]

All my hopes on the second round 🤞

[Mathieu Lamvohee @MatLamvohee]

@samhenrigold This is brilliant! 🙌 It inspired me to build a small app that uses the same idea to nudge you into taking breaks when you've been staring at your screen too long. Free to download: https://t.co/UDRW7TM7Ku

[Mathieu Lamvohee @MatLamvohee]

@thomasbosboom Just added it! There's now a dedicated privacy section on the homepage. Thanks for the nudge 🙌

[Mathieu Lamvohee @MatLamvohee]

I'm building an app called Frenzz.

It helps you stay close to the people you care about, because most friendships don't end with a fight, they fade with silence.

I'm building this solo with SwiftUI and on-device AI. Still early days.

Here's the radar — the closer a friend is to the center, the more recently you connected 👇

https://t.co/JVCqIRHNMH

[Mathieu Lamvohee @MatLamvohee]

@leejihoondd Right? It's the kind of thing nobody talks about but everyone's felt!

[Mathieu Lamvohee @MatLamvohee]

Thanks! All your data stays on your device, Frenzz doesn't have access to it. The only analytics I collect are through TelemetryDeck, which is privacy-first by design: no personal data, everything anonymised. Happy to share more if you're curious!
You can also find more info here: https://t.co/k5yWH3eL1k

[Mathieu Lamvohee @MatLamvohee]

@Matt_Pinner

[Mathieu Lamvohee @MatLamvohee]

What if your phone actually helped you be a better friend?

Drop a quick note after hanging out with someone. Foundation Models turn it into a real check-in report. On device, private, instant.

https://t.co/tmXI0G08dF

[Mathieu Lamvohee @MatLamvohee]

@AliGrids C, it has to be C

[Mathieu Lamvohee @MatLamvohee]

Question for anyone experimenting with the Foundation Models 🧪

When using the Guide macro, do you include examples in the description?

Like:
Guide(description: "One warm sentence..., e.g. 'You showed real care by reaching out'")

vs just the instructions without the e.g.

I've been going back and forth, examples seem to anchor the output nicely, but they also risk the model copying them too closely.

What's been your experience?

[Mathieu Lamvohee @MatLamvohee]

@ios_dev_alb 1, and soon, 2

[Mathieu Lamvohee @MatLamvohee]

One user thought Frenzz needed full contact access. It doesn't, you can pick just a few. The onboarding just wasn't saying it clearly enough. Now it does!

Also shipping today: Dutch, Spanish, French and German support 🙌

[Mathieu Lamvohee @MatLamvohee]

@ios_dev_alb Nice tip! I've been matching the scrollView width and using .contentMargins instead, definitely cleaner this way!

[Mathieu Lamvohee @MatLamvohee]

📚 Sources:
- Apple HIG — Buttons: https://t.co/87eaenGmqy
- SwiftUI Button docs: https://t.co/UTRPVHYcZJ
- Apple Accessibility: https://t.co/1uFPR5dRdH
- WWDC 2022 — "Implement accessibility in SwiftUI": https://t.co/T7HI8wXni0

[Mathieu Lamvohee @MatLamvohee]

I was adding accessibility to my app Frenzz when I stumbled on this: using onTapGesture where I should've used Button.
Turns out there's a clear rule for this and it matters a lot for VoiceOver users.
Here's what I learned 👇

[Mathieu Lamvohee @MatLamvohee]

So the rule: if onTapGesture is the sole path to an action, it should be a Button.
Button gets .isButton trait automatically and assistive tech works. On the other hand, onTapGesture gets nothing.
Semantic controls = accessible apps.

[Mathieu Lamvohee @MatLamvohee]

@volelexyz Very sharp, thanks! Fixed and will be reflected in the next release.