Calculator
Rehearse key flows while profile, angle, display, payment timing, and TVM state remain visible.
Release candidate
Ttrufle app 01
Calculation you can retrace.
Practice financial calculator key flows, see the settings behind every result, and reopen the exact session later. Core calculations work offline and calculation data stays on your device.
Not yet publicly available for download.
- Offline-first core
- English + 한국어
- iPhone, iPad + Android
- No ads or account in paid v1
One session, four ways to learn.
The keypad, worksheets, Coach, and History expose the same active calculation from the view that helps you move forward.
Worksheets
Edit structured financial inputs and generated schedules without creating a separate calculation.
Coach
Follow accepted key paths, diagnose setup mistakes, and practise without silent correction.
History + Audit
Search, replay, and restore a result together with the commands and settings that produced it.
Your calculations stay yours.
The paid v1 candidate has no account, advertising, analytics, remote crash reporting, or cloud calculation storage. Copy, share, and export happen only when you request them.
Read the complete privacy policyIndependent by design.
This is a study and calculation tool published by Gorae Labs. It uses original interface and learning content and is not official, endorsed, or affiliated with a calculator manufacturer, exam body, or financial institution.