Private by design
Your data stays on your device. No accounts required, no tracking SDKs bolted on.
Apps people actually keep.
Doop Studio is a one-person mobile studio crafting calm, useful apps — calorie tracking, budgets, and investing tools trusted by 16,000+ people.
PiCal AI Today
1,420
kcal today
Lunch bowl
Just now
520 kcal
Flat white
2h ago
180 kcal
Snack
4h ago
95 kcal
16,000+
Downloads on Google Play
4.8★
Average rating
3
Apps in production
2+
Years shipping
THE APPS
Three apps. One obsession with utility.
Every Doop app earns its place on your home screen — private by default, fast on any phone.
Flagship · 4.8★
PiCal AI
Point your camera at a meal and get calories instantly. AI food recognition that makes tracking effortless.
Explore PiCal AI →
New
Expense Manager
Private budget tracking with beautiful analytics. Your money data never leaves your phone.
Explore Expense Manager →
16K+ downloads
Investment Planner
SIP, lumpsum and goal calculators that make compounding tangible.
Explore Investment Planner →
THE CRAFT
Small studio. Sweated details.
No growth hacks, no dark patterns — just careful Android engineering.
Fast on every phone
Tuned for mid-range Android hardware, not just flagships. Cold start in under a second.
Designed, not decorated
Every screen earns its pixels — clear hierarchy, honest copy, no clutter.
Supported by a human
Email the founder directly. Real replies, usually within a day.
FOUNDER-LED
“I build the apps I wished existed — then polish them until they feel inevitable.”Read the story →
FROM THE PLAY STORE
What people say.
★★★★★
Scanned my lunch and it just… knew. Tracking finally stuck for me.
★★★★★
The only budget app that doesn't want my bank login. Fast and gorgeous.
★★★★★
SIP calculator I recommend to every junior at work.
★★★★★
Feels like an app from a big studio, but the dev actually replies to email.
★★★★★
No ads shoved in my face. Clean, quick, respectful.
★★★★★
Made my retirement math click in one evening.
SAY HELLO
Have an idea or a bug? Talk to the founder.
No support queue, no ticket numbers — just email.