# Number vs PolyDigits

The clearest difference is update cadence: PolyDigits at every 5 days against Number's every 3 months. Number's advantage is iOS requirement (14.2 vs 26). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Number sells 1 one-off in-app purchase and PolyDigits sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Number ships an update every 3 months, PolyDigits every 5 days. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Number | PolyDigits |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 17 MB | 4 MB |
| Requires iOS | **14.2** | 26 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [LULATECH](https://appshunter.io/developer/1566009294) | [Daniel Kwetschas](https://appshunter.io/developer/1823422072) |

## What reviewers say

### Number

[App page](https://appshunter.io/ios/app/number-ninja/id1566009292)

Learn and practice numbers in 18 languages with interactive exercises and spoken pronunciations. Features a hands-free mode for relaxed learning on the go, progress tracking, and social sharing of achievements.

**Highlights:** Learn numbers in 18 languages, Spoken pronunciations, Free Hand Mode for continuous learning, Adjustable pauses and language speed, Progress tracking overviews, Social sharing of successes

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all levels | $0.99 | one-time |


### PolyDigits

[App page](https://appshunter.io/ios/app/polydigits/id6747923329)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee Subscription | $1.99 | per month |
| Small Coffee | $2.99 | one-time |
| Medium Coffee | $3.99 | one-time |
| Large Coffee | $5.99 | one-time |


## Frequently asked questions

### Is Number free?

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

### Is PolyDigits free?

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

### Do Number or PolyDigits have ads?

Neither Number nor PolyDigits shows ads.

### Which is updated more often, Number or PolyDigits?

Number ships an update every 3 months, and PolyDigits every 5 days. Most recently, Number was updated on October 5, 2026 and PolyDigits on October 6, 2026.

---

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