Mental Metal · App Studio

Apps people refuse to delete.

A small studio of Melbourne developers building fast, private, ruthlessly focused apps for mobile and web. No middlemen, no bloat, no dark patterns.

How we work

Privacy by default

Minimal data, no tracking, nothing sold. Our own apps go further still: no accounts, and nothing leaves your phone.

Shipped, not slideware

Real apps in the store, real web apps in production. We design, build, and ship the whole thing, then keep it sharp after launch.

Small on purpose

Tight scope, sharp execution. Every screen earns its place, so the app stays fast and stays out of your way.

The work

Churnie: Card Churn Tracker

New iOS & Android · Finance

Australian banks pay big sign-up bonuses, and take them back from anyone who slips. Churnie tracks every card from bonus to cancel-by date: live minimum-spend pacing, fee reminders, an eligibility radar that knows every AU bank's rules, and a ledger that proves the hobby pays. Free, private, no bank logins. Turn the sound on, the video explains the whole game.

Coming soon to the App Store & Google Play.

Squish: Video Compressor

Featured iOS & Android · Photo & Video

See exactly how small your video will get before you compress it: drag the slider, watch the size update live, then squish. Batch, no watermark, no size cap, no ads — and everything happens on your phone, nothing is uploaded.

Coming soon to the App Store & Google Play.

Menopause & Hot Flash Diary

iOS & Android · Health & Fitness

Log perimenopause symptoms in seconds, see a clear 30-day picture, and share a clean summary with your GP. Make it yours with six gentle themes, each with a soft dark mode. Private by design: no account, no cloud, your data never leaves your phone.

Got an app in you?

If you want something small, fast, and genuinely good built, talk to us. We take on a few projects at a time and do them properly.

Start a project