# Clastly vs Mellow

The clearest difference is in-app purchases: Mellow at none against Clastly's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Clastly sells 2 in-app purchases, starting at $2.99 per month. Mellow asks for nothing beyond the download.

Clastly ships an update every 11 days, Mellow every 10 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | Clastly | Mellow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/clastly-personal-database/id6757971144/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 10 days** |
| Monetization | Free | — |
| Size | 38 MB | 4 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Soji Takahashi](https://appshunter.io/developer/1556419842) | [海鑫 李](https://appshunter.io/developer/6786503119) |

## What reviewers say

### Clastly

[App page](https://appshunter.io/ios/app/clastly-personal-database/id6757971144)

Organize anything with custom collections and powerful field types. Track reading lists, travel memories, subscriptions, and more. Your data syncs securely via iCloud with a clean, native iOS interface.

**Highlights:** Customizable collections, Multiple field types, Pre-built templates, Data filtering, iCloud sync, Ad-free experience

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan (Monthly) | $2.99 | per month |
| Pro Plan (Yearly) | $19.99 | per year |


### Mellow

[App page](https://appshunter.io/ios/app/mellow-thoughtful-writing/id6791000132)

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

**In-app purchases:** none


## Frequently asked questions

### Is Clastly free?

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

### Is Mellow free?

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

### Do Clastly or Mellow have ads?

Neither Clastly nor Mellow shows ads.

### Which is updated more often, Clastly or Mellow?

Clastly ships an update every 11 days, and Mellow every 10 days. Most recently, Clastly was updated on October 28, 2026 and Mellow on October 28, 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.*