# Thai Letter Chart vs LingoFrontier

The clearest difference is in-app purchases: Thai Letter Chart at none against LingoFrontier's 4. Thai Letter Chart also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.6). LingoFrontier's advantage is update cadence (weekly vs every 14 months). On price and ads there is nothing between them.

Both are free to download. LingoFrontier sells 4 in-app purchases, starting at $2.99 per 7 days. Thai Letter Chart asks for nothing beyond the download.

Thai Letter Chart ships an update every 14 months, LingoFrontier weekly. The most recent releases landed on November 11, 2026 and November 15, 2026 respectively.

## The numbers

| Metric | Thai Letter Chart | LingoFrontier |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Weekly** |
| Size | 8 MB | 40 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ritsuro](https://appshunter.io/developer/338520124) | [Klondis](https://appshunter.io/developer/1879276434) |

## 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


### LingoFrontier

[App page](https://appshunter.io/ios/app/lingofrontier-type-thai/id6759525875)

**Features:** iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LingoFrontier: Type Thai Weekly | $2.99 | per 7 days |
| LingoFrontier: Type Thai Monthly | $5.99 | per month |
| LingoFrontier: Type Thai Annual | $24.99 | per year |
| LingoFrontier: Type Thai Premium | $6.99 | one-time |


## Frequently asked questions

### Is Thai Letter Chart free?

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

### Is LingoFrontier free?

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

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

Neither Thai Letter Chart nor LingoFrontier shows ads.

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

Thai Letter Chart ships an update every 14 months, and LingoFrontier weekly. Most recently, Thai Letter Chart was updated on November 11, 2026 and LingoFrontier on November 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*