# Clastly vs 3 Seconds Memo

The clearest difference is in-app purchases: Clastly at none against 3 Seconds Memo's 2. Clastly also leads on ads (none vs shown). 3 Seconds Memo's advantage is iOS requirement (16.4 vs 26.0). On price, review sentiment, update cadence and device support there is nothing between them.

Both are free to download. 3 Seconds Memo sells 2 in-app purchases, starting at $2.99 per month. Clastly asks for nothing beyond the download.

Clastly ships an update fortnightly, 3 Seconds Memo weekly. Both last shipped on October 6, 2026.

## The numbers

| Metric | Clastly | 3 Seconds Memo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/clastly-personal-database/id6757971144/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 10 MB | 72 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Soji Takahashi](https://appshunter.io/developer/1556419842) | [Aiju Kawase](https://appshunter.io/developer/6773546342) |

## 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, Vision Pro support

**In-app purchases:** none


### 3 Seconds Memo

[App page](https://appshunter.io/ios/app/3-seconds-memo-simple-notes/id6773546340)

This app allows for rapid note-taking and idea capture, opening directly to a creation screen. It offers offline functionality, local data storage, and organizational tools like categories and tags. Premium features include ad-free usage, data export, and custom categories.

**Highlights:** Immediate memo creation on launch, Offline functionality, Local-only data storage, Organize with categories and tags, Attach photos to memos, Lock Screen widget for quick access, Export to Markdown and CSV (Premium)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Montly Plan | $2.99 | per month |
| Annual Plan | $29.99 | per year |


## Frequently asked questions

### Is Clastly free?

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

### Is 3 Seconds Memo free?

3 Seconds Memo is free to download, with in-app purchases available.

### Do Clastly or 3 Seconds Memo have ads?

3 Seconds Memo shows ads; Clastly does not.

### Which is updated more often, Clastly or 3 Seconds Memo?

Clastly ships an update fortnightly, and 3 Seconds Memo weekly. Most recently, Clastly was updated on October 6, 2026 and 3 Seconds Memo on October 6, 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.*