# Fast MathB vs Draw Perfect Circle Challenge!

The clearest difference is ads: Fast MathB at none against Draw Perfect Circle Challenge!'s shown. Fast MathB also leads on update cadence (every 6 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Fast MathB sells 5 one-off in-app purchases and Draw Perfect Circle Challenge! sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Fast MathB ships an update every 6 days, Draw Perfect Circle Challenge! every 3 weeks. The most recent releases landed on September 11, 2026 and August 14, 2026 respectively.

## The numbers

| Metric | Fast MathB | Draw Perfect Circle Challenge! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/draw-perfect-circle-challenge/id6499588806/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 153 MB | 87 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Salih Hamouda](https://appshunter.io/developer/1564178940) | [Michal Walaszczyk](https://appshunter.io/developer/943468873) |

## What reviewers say

### Fast MathB

[App page](https://appshunter.io/ios/app/fast-mathb/id6447488960)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pack1 | $0.99 | one-time |
| vip1 | $0.99 | one-time |
| pack3 | $2.99 | one-time |
| vip3 | $2.99 | one-time |
| pack5 | $4.99 | one-time |


### Draw Perfect Circle Challenge!

[App page](https://appshunter.io/ios/app/draw-perfect-circle-challenge/id6499588806)

Test your precision in this addictive game where the goal is to draw the perfect circle. Earn achievements, level up your art skills, and compete for high scores. Enjoy relaxing gameplay and share your creations.

**Highlights:** Draw perfect circles, Unlock achievements, Level up drawing skills, Save and share high score replays, Compete with friends, Relaxing one-tap gameplay

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy me a coffee! | $4.99 | one-time |


## Frequently asked questions

### Is Fast MathB free?

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

### Is Draw Perfect Circle Challenge! free?

Draw Perfect Circle Challenge! is free to download, with in-app purchases available.

### Do Fast MathB or Draw Perfect Circle Challenge! have ads?

Draw Perfect Circle Challenge! shows ads; Fast MathB does not.

### Which is updated more often, Fast MathB or Draw Perfect Circle Challenge!?

Fast MathB ships an update every 6 days, and Draw Perfect Circle Challenge! every 3 weeks. Most recently, Fast MathB was updated on September 11, 2026 and Draw Perfect Circle Challenge! on August 14, 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.*