# Futureseed vs Diagram

The clearest difference is in-app purchases: Diagram at none against Futureseed's 1. Diagram also leads on update cadence (every 2 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Futureseed sells 1 one-off in-app purchase. Diagram asks for nothing beyond the download.

Futureseed ships an update fortnightly, Diagram every 2 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Futureseed | Diagram |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 2 days** |
| Size | 57 MB | 103 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AHYOUNG CHO](https://appshunter.io/developer/1871834105) | [JUN SOO LEE](https://appshunter.io/developer/1896729761) |

## What reviewers say

### Futureseed

[App page](https://appshunter.io/ios/app/futureseed/id6760977627)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Futureseed Pro | $1.99 | one-time |


### Diagram

[App page](https://appshunter.io/ios/app/diagram/id6770277695)

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

**In-app purchases:** none


## Frequently asked questions

### Is Futureseed free?

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

### Is Diagram free?

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

### Do Futureseed or Diagram have ads?

Both Futureseed and Diagram show ads.

### Which is updated more often, Futureseed or Diagram?

Futureseed ships an update fortnightly, and Diagram every 2 days. Most recently, Futureseed was updated on October 25, 2026 and Diagram on October 25, 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.*