Welcome to StackStudio
Beautiful Apps,
Real Impact
We build simple, focused apps that solve real problems. From financial tools to vocabulary learning, every app is crafted for excellence.
NUMO
WORDSTASH
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Apps Launched
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Our Apps
NUMO
The only UK app that tracks Premium Bonds vs ISAs. Plus beautiful calculators for savings & mortgages.
- Premium Bonds Tracker
- AER Calculator
- Mortgage Calculator
WORDSTASH
Elevate your vocabulary effortlessly. Create personalized word lists, use spaced repetition, and get daily word notifications.
- Daily Word Notifications
- Custom Word Groups
- Spaced Repetition