# addition calc vs TapMailer2

The clearest difference is in-app purchases: addition calc at none against TapMailer2's 1. addition calc also leads on iOS requirement (9.3 vs 15.0). TapMailer2's advantage is device support (5 vs 3). On price, update cadence and ads there is nothing between them.

Both are free to download. TapMailer2 sells 1 in-app purchase, starting at $0.99 per month. addition calc asks for nothing beyond the download.

addition calc ships an update monthly, TapMailer2 every 2 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | addition calc | TapMailer2 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | — |
| Size | 13 MB | 38 MB |
| Requires iOS | **9.3** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Shozo Obayashi](https://appshunter.io/developer/1453986142) | [ynose apps](https://appshunter.io/developer/466314922) |

## 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


### TapMailer2

[App page](https://appshunter.io/ios/app/tapmailer2/id1526801029)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TapMailer2 subscription | $0.99 | per month |


## Frequently asked questions

### Is addition calc free?

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

### Is TapMailer2 free?

TapMailer2 is free to download, with in-app purchases available.

### Do addition calc or TapMailer2 have ads?

Neither addition calc nor TapMailer2 shows ads.

### Which is updated more often, addition calc or TapMailer2?

addition calc ships an update monthly, and TapMailer2 every 2 months. Most recently, addition calc was updated on November 2, 2026 and TapMailer2 on November 7, 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.*