# simian.interface++ vs Wolfoo's Colors

The clearest difference is monetization model: simian.interface++ at free with in-app purchases against Wolfoo's Colors's subscription. simian.interface++ also leads on update cadence (daily vs every 3 weeks) and ratings volume (5 vs 1). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. simian.interface++ sells 1 one-off in-app purchase and Wolfoo's Colors sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for simian.interface++ against 5.0 for Wolfoo's Colors. That said, the two scores are not equally well evidenced: simian.interface++ has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

simian.interface++ ships an update daily, Wolfoo's Colors every 3 weeks. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | simian.interface++ | Wolfoo's Colors |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/simianinterface-plus-plus/id6502666587/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/wolfoos-colors-learning-book/id6503130200/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 weeks |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 152 MB | 130 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [vested interest LLC](https://appshunter.io/developer/1746378363) | [WOLFOO LLC](https://appshunter.io/developer/1624835196) |

## What reviewers say

### simian.interface++

[App page](https://appshunter.io/ios/app/simianinterface-plus-plus/id6502666587)

An abstract puzzle game that challenges players with pattern recognition and intuition. It features a unique soundtrack, an original version of the game, and a new infinite mode with procedurally generated content for endless replayability.

**Highlights:** Abstract puzzle experience, Pattern recognition challenges, Intuitive gameplay, Original game included, Infinite_loop mode, Procedurally generated levels

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Full Game | $1.99 | one-time |


### Wolfoo's Colors

[App page](https://appshunter.io/ios/app/wolfoos-colors-learning-book/id6503130200)

Explore a vibrant world of colors, shapes, and creativity. Learn about primary colors, practice mixing hues, and engage in fun mini-games like coloring and quizzes. Create your own stories and bring drawings to life with a wide palette.

**Highlights:** Color recognition and mixing, Interactive mini-games, Creative coloring and drawing, Story creation and narration, Puzzle and quiz challenges, Develops fine motor skills

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Annual Subscription | $2.99 | per year |
| Unlock All | $4.99 | one-time |


## Frequently asked questions

### Is simian.interface++ free?

simian.interface++ is free to download, with in-app purchases available.

### Is Wolfoo's Colors free?

Wolfoo's Colors is free to download, with in-app purchases available.

### Which has better reviews, simian.interface++ or Wolfoo's Colors?

simian.interface++ and Wolfoo's Colors are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.

### Do simian.interface++ or Wolfoo's Colors have ads?

Neither simian.interface++ nor Wolfoo's Colors shows ads.

### Which is updated more often, simian.interface++ or Wolfoo's Colors?

simian.interface++ ships an update daily, and Wolfoo's Colors every 3 weeks. Most recently, simian.interface++ was updated on October 24, 2026 and Wolfoo's Colors on October 19, 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.*