# SimpleCalc. vs OPTIMISER POWER

The clearest difference is update cadence: OPTIMISER POWER at fortnightly against SimpleCalc.'s every 7 months. OPTIMISER POWER also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SimpleCalc. ships an update every 7 months, OPTIMISER POWER fortnightly. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | SimpleCalc. | OPTIMISER POWER |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Fortnightly** |
| Size | 16 MB | 39 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Romain Rousseau](https://appshunter.io/developer/1645997193) | [Khalid BEY](https://appshunter.io/developer/1705837593) |

## What reviewers say

### SimpleCalc.

[App page](https://appshunter.io/ios/app/simplecalc/id6447461450)

**Features:** Vision Pro support

**In-app purchases:** none


### OPTIMISER POWER

[App page](https://appshunter.io/ios/app/optimiser-power/id6464369636)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SimpleCalc. free?

SimpleCalc. is free to download, with no in-app purchases.

### Is OPTIMISER POWER free?

OPTIMISER POWER is free to download, with no in-app purchases.

### Do SimpleCalc. or OPTIMISER POWER have ads?

Neither SimpleCalc. nor OPTIMISER POWER shows ads.

### Which is updated more often, SimpleCalc. or OPTIMISER POWER?

SimpleCalc. ships an update every 7 months, and OPTIMISER POWER fortnightly. Most recently, SimpleCalc. was updated on October 2, 2026 and OPTIMISER POWER on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*