# Number Chain by SZY vs Scribble

The clearest difference is in-app purchases: Number Chain by SZY at none against Scribble's 7. Number Chain by SZY also leads on update cadence (every 4 months vs every 18 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Scribble sells 7 one-off in-app purchases. Number Chain by SZY asks for nothing beyond the download.

Number Chain by SZY ships an update every 4 months, Scribble every 18 months. The most recent releases landed on November 10, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Number Chain by SZY | Scribble |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/number-chain-by-szy/id490969339/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 4 months** | Every 18 months |
| Monetization | Ad-supported | — |
| Size | 66 MB | 56 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZHONGYUAN SHEN](https://appshunter.io/developer/385090494) | [PLAYTOUCH](https://appshunter.io/developer/608330754) |

## What reviewers say

### Number Chain by SZY

[App page](https://appshunter.io/ios/app/number-chain-by-szy/id490969339)

A puzzle game where you create chains of three or more matching or consecutive numbers to clear them and earn points. Achieve high scores by forming longer chains and triggering "Rensa" combos.

**Highlights:** Build removable chains of numbers, Score points based on chain length, Trigger automatic chain reactions (Rensa), Utilize a 'Final Number of 0' for clearing, Support for leaderboards and achievements, Automatic game saving

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

**In-app purchases:** none


### Scribble

[App page](https://appshunter.io/ios/app/scribble-play-with-math/id1620125315)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 diamonds | $0.99 | one-time |
| Remove all ADS from the game | $1.99 | one-time |
| 300 diamonds | $1.99 | one-time |
| 550 diamonds | $3.99 | one-time |
| 1200 diamonds | $8.99 | one-time |
| 2500 diamonds | $17.99 | one-time |
| 4000 diamonds | $26.99 | one-time |


## Frequently asked questions

### Is Number Chain by SZY free?

Number Chain by SZY is free to download, with no in-app purchases.

### Is Scribble free?

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

### Do Number Chain by SZY or Scribble have ads?

Both Number Chain by SZY and Scribble show ads.

### Which is updated more often, Number Chain by SZY or Scribble?

Number Chain by SZY ships an update every 4 months, and Scribble every 18 months. Most recently, Number Chain by SZY was updated on November 10, 2026 and Scribble on November 7, 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.*