OnCenter
In App Store review
A feet-and-inch calculator for builders. Exact fractions, shown on a ruler, with rafters, stairs and concrete one tap away.
Independent app developer in Melbourne · taking on new projects
I make apps and ship them. Then I make the next one.
I design, build, launch and look after apps for iPhone and Android, on my own and all the way through. Everything below is mine. If you have an app to build, I can take it the whole way too.
Email me about your project
dev@charithp.com
iPhone and Android, with AI
Bigger builds, the kind most clients bring.
Native apps on both platforms, a server for accounts and sync, AI features people pay for, and subscriptions that work across stores.
Tare
On the App Store and Google Play
A calorie tracker people keep using after the first week.
Log a meal in seconds, see where the day stands, move on. Pro reads a photo of your dinner and estimates every food on the plate.
- Two native apps, one brain. The logic is written once and shared, so iPhone and Android always agree.
- The server behind it. Accounts, food search across millions of products, and subscriptions checked on the server.
- AI with a person in the loop. It reads a meal from a photo, a label or a sentence, and you review it before anything is saved.
Load
Coming soon · iPhone + Android
A gym tracker that tells you what to lift today. AI builds your training plan and writes up your week.
Fasting
Coming soon · iPhone + Android
A fasting tracker, joining Tare and Load to cover what you eat, when you eat and how you train.
iPhone apps
Small, focused apps, newest first.
Each one does one job well, works offline, syncs through iCloud, and is a single purchase with no subscription. New ones land here often.
Nitrify
On the App Store
Turns aquarium test results into a plain answer: where the tank is in its cycle, and whether the water is safe.
Puddle
On the App Store
Tells new puppy owners when the next potty break is due, then learns the puppy's own rhythm.
Radia
On the App Store
A red light therapy log that works out your dose, with a live timer on the Lock Screen and sessions saved to Apple Health.
Autolyse
On the App Store
A sourdough tracker that predicts when your starter will peak from your kitchen temperature.
What I can build for you
Everything an app needs, from one person.
New apps, start to finish
For founders and businesses with an idea. I turn it into a first version people can download.
Like OnCenteriPhone and Android
Native on both, with the logic shared so you are not paying for everything twice.
Like TareThe server behind it
Accounts, sync, search and payments, hosted and monitored on a fixed monthly cost.
Like TareAI features
Reading photos, labels and text, planning and summaries, with limits that keep the running cost predictable.
Like Tare and LoadSmart, useful features
Predictions, reminders, widgets and Lock Screen timers that make an app worth opening.
Like NitrifyLaunch and after
Store listing, screenshots and review, then updates once real people are using it.
Like Radia
How a project runs
You see it on your phone early, and often.
Talk it through
A call, then a short written scope: who it is for, what the first version does, and what waits.
Design
Screens you can tap through before any code is written.
Build
Test builds on your own phone as it comes together, so nothing is a surprise.
Launch
Store listing, screenshots and App Store and Google Play review.
Look after it
Fixes, new iOS and Android versions, and the next features.
About
Got an app in mind? Tell me about it.
I'm Charith. I've spent years building software at companies, and I build my own apps in the hours around that. Every one has gone from a blank page to the store with no one else on the team. That is the job I'd like to do for you.
dev@charithp.com- Based inMelbourne, Australia
- Works withFounders, businesses, agencies, teams
- Builds foriPhone, Android and the server behind them
- Latest releaseOnCenter, in App Store review
- AvailabilityTaking on new projects