# addition calc vs Sorto

The clearest difference is iOS requirement: addition calc at 9.3 against Sorto's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

addition calc ships an update monthly, Sorto every 2 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | addition calc | Sorto |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | — |
| Size | 13 MB | 11 MB |
| Requires iOS | **9.3** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shozo Obayashi](https://appshunter.io/developer/1453986142) | [ehsan azish](https://appshunter.io/developer/1622575303) |

## What reviewers say

### addition calc

[App page](https://appshunter.io/ios/app/addition-calc/id1453986143)

This calculator app clearly displays inputs and sums on separate rows for easy understanding. Perform basic arithmetic operations with large, accessible buttons. Customize decimal places and rounding for precise calculations.

**Highlights:** Separate input and sum display, Large buttons for easy input, Supports four input operations, Customizable decimal places, Adjustable rounding settings, Optional vibration feedback

**Features:** macOS Compatibility

**In-app purchases:** none


### Sorto

[App page](https://appshunter.io/ios/app/sorto-smart-email-assistant/id6760287842)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is addition calc free?

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

### Is Sorto free?

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

### Do addition calc or Sorto have ads?

Neither addition calc nor Sorto shows ads.

### Which is updated more often, addition calc or Sorto?

addition calc ships an update monthly, and Sorto every 2 months. Most recently, addition calc was updated on October 29, 2026 and Sorto on October 24, 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.*