# Sool vs Tap Color Fill Boxes

The clearest difference is update cadence: Sool at every 2 months against Tap Color Fill Boxes's every 6 months. Tap Color Fill Boxes's advantage is iOS requirement (15.0 vs 17.0). 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.

Sool ships an update every 2 months, Tap Color Fill Boxes every 6 months. The most recent releases landed on November 5, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sool | Tap Color Fill Boxes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Size | 4 MB | 7 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Umit UZ](https://appshunter.io/developer/1842858860) | [建川 陈](https://appshunter.io/developer/1885896993) |

## What reviewers say

### Sool

[App page](https://appshunter.io/ios/app/sool-quick-mathematic-trainer/id6756207263)

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

**In-app purchases:** none


### Tap Color Fill Boxes

[App page](https://appshunter.io/ios/app/tap-color-fill-boxes/id6761321848)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sool free?

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

### Is Tap Color Fill Boxes free?

Tap Color Fill Boxes is free to download, with no in-app purchases.

### Do Sool or Tap Color Fill Boxes have ads?

Neither Sool nor Tap Color Fill Boxes shows ads.

### Which is updated more often, Sool or Tap Color Fill Boxes?

Sool ships an update every 2 months, and Tap Color Fill Boxes every 6 months. Most recently, Sool was updated on November 5, 2026 and Tap Color Fill Boxes on October 25, 2026.

---

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