# Thai Letter Chart vs ClockCompass コンパス時計

The clearest difference is ads: Thai Letter Chart at none against ClockCompass コンパス時計's shown. ClockCompass コンパス時計's advantage is update cadence (every 10 days vs every 14 months) and iOS requirement (12.1 vs 15.6). On price, 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.

Thai Letter Chart ships an update every 14 months, ClockCompass コンパス時計 every 10 days. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Thai Letter Chart | ClockCompass コンパス時計 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 14 months | **Every 10 days** |
| Size | 8 MB | 15 MB |
| Requires iOS | 15.6 | **12.1** |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ritsuro](https://appshunter.io/developer/338520124) | [takayuki atsumi](https://appshunter.io/developer/1495474977) |

## What reviewers say

### Thai Letter Chart

[App page](https://appshunter.io/ios/app/thai-letter-chart/id1315928199)

**In-app purchases:** none


### ClockCompass コンパス時計

[App page](https://appshunter.io/ios/app/clockcompass/id1500240108)

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

**In-app purchases:** none


## Frequently asked questions

### Is Thai Letter Chart free?

Thai Letter Chart is free to download, with no in-app purchases.

### Is ClockCompass コンパス時計 free?

ClockCompass コンパス時計 is free to download, with no in-app purchases.

### Do Thai Letter Chart or ClockCompass コンパス時計 have ads?

ClockCompass コンパス時計 shows ads; Thai Letter Chart does not.

### Which is updated more often, Thai Letter Chart or ClockCompass コンパス時計?

Thai Letter Chart ships an update every 14 months, and ClockCompass コンパス時計 every 10 days. Most recently, Thai Letter Chart was updated on October 4, 2026 and ClockCompass コンパス時計 on October 11, 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.*