# Countdown Letters & Numbers vs SIXTN

The clearest difference is ads: Countdown Letters & Numbers at none against SIXTN's shown. SIXTN's advantage is update cadence (weekly vs fortnightly) and iOS requirement (13.4 vs 16.0). 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.

Countdown Letters & Numbers ships an update fortnightly, SIXTN weekly. The most recent releases landed on September 19, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Countdown Letters & Numbers | SIXTN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/countdown-letters-and-numbers/id1581434523/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free | — |
| Size | 66 MB | 22 MB |
| Requires iOS | 16.0 | **13.4** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Limaraxa S.L.](https://appshunter.io/developer/837657908) | [fadition Co., Ltd.](https://appshunter.io/developer/1589916972) |

## What reviewers say

### Countdown Letters & Numbers

[App page](https://appshunter.io/ios/app/countdown-letters-and-numbers/id1581434523)

Challenge your mind with a numbers game using basic math operations or a letters game to find the longest words. This free mental agility game is completely ad-free and does not collect your data.

**Highlights:** Numbers game with mathematical operations, Letters game to find long words, Mental agility workout, Completely free, No advertising, Data privacy

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

**In-app purchases:** none


### SIXTN

[App page](https://appshunter.io/ios/app/sixtn/id6478457736)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Countdown Letters & Numbers free?

Countdown Letters & Numbers is free to download, with no in-app purchases.

### Is SIXTN free?

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

### Do Countdown Letters & Numbers or SIXTN have ads?

SIXTN shows ads; Countdown Letters & Numbers does not.

### Which is updated more often, Countdown Letters & Numbers or SIXTN?

Countdown Letters & Numbers ships an update fortnightly, and SIXTN weekly. Most recently, Countdown Letters & Numbers was updated on September 19, 2026 and SIXTN on September 8, 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.*