# Synthesis24 vs Schulte Grid

Synthesis24 and Schulte Grid are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Synthesis24 | Schulte Grid |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 49 MB | 11 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [杰超 杨](https://appshunter.io/developer/1364053114) | [培克 罗](https://appshunter.io/developer/1516557687) |

## What reviewers say

### Synthesis24

[App page](https://appshunter.io/ios/app/synthesis24/id1606353407)

**Features:** macOS Compatibility

**In-app purchases:** none


### Schulte Grid

[App page](https://appshunter.io/ios/app/schulte-grid-printable/id6547865783)

**In-app purchases:** none


## Frequently asked questions

### Is Synthesis24 free?

Synthesis24 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 Synthesis24 or Schulte Grid have ads?

Neither Synthesis24 nor Schulte Grid shows ads.

### Which is updated more often, Synthesis24 or Schulte Grid?

Synthesis24 ships an update every 3 months, and Schulte Grid every 3 months. Most recently, Synthesis24 was updated on September 22, 2026 and Schulte Grid on September 10, 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.*