OpenCalc - Calculator
★ 4.4Find an alternative to OpenCalc - Calculator
Calculate yearly cost
Estimate using prices you enter, excluding discounts and taxes. This is not a verified app plan.
First year: Unknown
Data and scoring
Profile based on reviews and description
- Profile analysed
- Jun 22, 2026
- App updated
- Sep 21, 2025
Store sources
- Google Play · Store data seen: Jul 3, 2026 · Data is over 30 days old — check the source
Plans and limits
Plans and free-tier limits are not verified. Free installation does not mean free usage.
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Marketing versus reality estimates how well promised features are supported; stability estimates complaints about crashes and speed. Project activity is calculated from update recency, review activity and store availability. Percentages are not guarantees or success probabilities; missing data does not mean a zero score.
What it actually doesThis modern and beautiful scientific calculator will help you solve all your calculations.
Actually does
- ✓Calculator95% of reviews
- ✓Open source10% of reviews
- ✓Dark mode15% of reviews
- ✓Ad-free25% of reviews
- ✓Calculation History(bonus)20% of reviews
Common complaints
- ✗Calculation history disappears15% of mentions
«After an hour all calculations disappear»
- ✗Screen doesn't turn off, history interface bug10% of mentions
«The screen doesn't turn off even if sleep mode is disabled in settings. And when you open history - there's a bug at the top, half the screen is empty»
- ✗Missing 1/x (reciprocal) function5% of mentions
«no memory, no 1/x»
- ✗Keys sometimes don't respond during fast input5% of mentions
«keys sometimes don't respond during fast typing»
- ✗Large numbers don't fit on screen, font doesn't shrink5% of mentions
«The number didn't fit on the screen. Make the font shrink»
What people praise
- ★Simplicity, minimalism, excellent design
«truth in simplicity! Best calculator without unnecessary features»
- ★No ads and no unnecessary permissions
«open source, simple in design, check the permissions – this is how ALL apps should be»
- ★Reliable core functionality (calculates correctly)
«It calculates :) The best calculator, it's convenient»
- ★Ability to choose themes
«With themes that you can download»
- ★Includes trigonometric and scientific functions
«has sines and logarithms»