# Inkstroop vs Schulte Grid

The clearest difference is device support: Schulte Grid at 3 against Inkstroop's 1. Schulte Grid also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Inkstroop ships an update every 3 days, Schulte Grid every 4 days. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Inkstroop | Schulte Grid |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Every 4 days |
| Size | 5 MB | 55 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BIN WANG](https://appshunter.io/developer/1881032464) | [余芳 伍](https://appshunter.io/developer/1229314116) |

## What reviewers say

### Inkstroop

[App page](https://appshunter.io/ios/app/inkstroop/id6771827113)

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

**In-app purchases:** none


### Schulte Grid

[App page](https://appshunter.io/ios/app/schulte-grid-brain-training/id6810313541)

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

**In-app purchases:** none


## Frequently asked questions

### Is Inkstroop free?

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

### Is Schulte Grid free?

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

### Do Inkstroop or Schulte Grid have ads?

Both Inkstroop and Schulte Grid show ads.

### Which is updated more often, Inkstroop or Schulte Grid?

Inkstroop ships an update every 3 days, and Schulte Grid every 4 days. Most recently, Inkstroop was updated on September 24, 2026 and Schulte Grid on September 21, 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.*