# Thai Letter Chart vs ThaiSheet

The clearest difference is update cadence: ThaiSheet at every 4 days against Thai Letter Chart's every 14 months. Thai Letter Chart's advantage is iOS requirement (15.6 vs 17.0). 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.

Thai Letter Chart ships an update every 14 months, ThaiSheet every 4 days. The most recent releases landed on November 11, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Thai Letter Chart | ThaiSheet |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 4 days** |
| Size | 8 MB | 17 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ritsuro](https://appshunter.io/developer/338520124) | [Claude Montpetit](https://appshunter.io/developer/6789643639) |

## What reviewers say

### Thai Letter Chart

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

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

**In-app purchases:** none


### ThaiSheet

[App page](https://appshunter.io/ios/app/thaisheet/id6789643637)

**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 ThaiSheet free?

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

### Do Thai Letter Chart or ThaiSheet have ads?

Neither Thai Letter Chart nor ThaiSheet shows ads.

### Which is updated more often, Thai Letter Chart or ThaiSheet?

Thai Letter Chart ships an update every 14 months, and ThaiSheet every 4 days. Most recently, Thai Letter Chart was updated on November 11, 2026 and ThaiSheet on November 13, 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.*