# Gridea vs Vellum

The clearest difference is iOS requirement: Gridea at 16 against Vellum's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Gridea sells 3 one-off in-app purchases and Vellum sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Gridea ships an update every 2 weeks, Vellum weekly. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Gridea | Vellum |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Size | 56 MB | 44 MB |
| Requires iOS | **16** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [涛 陶](https://appshunter.io/developer/1681759290) | [四扬 叶](https://appshunter.io/developer/6797699915) |

## What reviewers say

### Gridea

[App page](https://appshunter.io/ios/app/gridea/id6777313278)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10M Tokens | $3.00 | one-time |
| 100M Tokens | $26.00 | one-time |
| LIFE TIME | $36.00 | one-time |


### Vellum

[App page](https://appshunter.io/ios/app/vellum-topic-notes-and-ideas/id6799964763)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vellum pro lifetime | $2.99 | one-time |


## Frequently asked questions

### Is Gridea free?

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

### Is Vellum free?

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

### Do Gridea or Vellum have ads?

Neither Gridea nor Vellum shows ads.

### Which is updated more often, Gridea or Vellum?

Gridea ships an update every 2 weeks, and Vellum weekly. Most recently, Gridea was updated on October 29, 2026 and Vellum 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.*