# Colour & Learn Sign Language vs Doodle Turtle

The clearest difference is update cadence: Doodle Turtle at every 9 days against Colour & Learn Sign Language's monthly. Doodle Turtle also leads on iOS requirement (15.0 vs 17.6). 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.

Colour & Learn Sign Language ships an update monthly, Doodle Turtle every 9 days. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Colour & Learn Sign Language | Doodle Turtle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Size | 74 MB | 57 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Eva Julia Borros](https://appshunter.io/developer/1879560987) | [AO TANG](https://appshunter.io/developer/1896032613) |

## What reviewers say

### Colour & Learn Sign Language

[App page](https://appshunter.io/ios/app/colour-and-learn-sign-language/id6759568912)

**Features:** macOS Compatibility

**In-app purchases:** none


### Doodle Turtle

[App page](https://appshunter.io/ios/app/doodle-turtle/id6795541758)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Colour & Learn Sign Language free?

Colour & Learn Sign Language is free to download, with no in-app purchases.

### Is Doodle Turtle free?

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

### Do Colour & Learn Sign Language or Doodle Turtle have ads?

Neither Colour & Learn Sign Language nor Doodle Turtle shows ads.

### Which is updated more often, Colour & Learn Sign Language or Doodle Turtle?

Colour & Learn Sign Language ships an update monthly, and Doodle Turtle every 9 days. Most recently, Colour & Learn Sign Language was updated on October 15, 2026 and Doodle Turtle on October 25, 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.*