# TPASS.calc vs Stoat Keyboard

The clearest difference is in-app purchases: TPASS.calc at none against Stoat Keyboard's 5. TPASS.calc also leads on device support (3 vs 1). Stoat Keyboard's advantage is iOS requirement (16.0 vs 18.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Stoat Keyboard sells 5 one-off in-app purchases. TPASS.calc asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | TPASS.calc | Stoat Keyboard |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | Every 2 days |
| Size | 84 MB | 199 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CHENG RUEI HSU](https://appshunter.io/developer/1871371578) | [CHIA HUNG LEE](https://appshunter.io/developer/6806891063) |

## What reviewers say

### TPASS.calc

[App page](https://appshunter.io/ios/app/tpasscalc/id6758194196)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Stoat Keyboard

[App page](https://appshunter.io/ios/app/stoat-keyboard/id6806891061)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stoat Pro 一次買斷 | $1.99 | one-time |
| Stoat 排版客製化 | $1.99 | one-time |
| Stoat 按鍵客製化 | $1.99 | one-time |
| Stoat 輸入功能包 | $1.99 | one-time |
| Stoat 全套客製化功能包 | $5.99 | one-time |


## Frequently asked questions

### Is TPASS.calc free?

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

### Is Stoat Keyboard free?

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

### Do TPASS.calc or Stoat Keyboard have ads?

Neither TPASS.calc nor Stoat Keyboard shows ads.

### Which is updated more often, TPASS.calc or Stoat Keyboard?

TPASS.calc ships an update every 2 days, and Stoat Keyboard every 2 days. Most recently, TPASS.calc was updated on October 24, 2026 and Stoat Keyboard 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.*