# Double memo vs Frame Rate Stopwatch

The clearest difference is price: Double memo at Free against Frame Rate Stopwatch's $9.99. Double memo also leads on iOS requirement (15.8.3 vs 17.6). Frame Rate Stopwatch's advantage is ads (none vs shown). On update cadence, in-app purchases and device support there is nothing between them.

Double memo is free to download; Frame Rate Stopwatch costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Double memo ships an update every 2 weeks, Frame Rate Stopwatch every 3 weeks. The most recent releases landed on September 16, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Double memo | Frame Rate Stopwatch |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Size | 37 MB | 8 MB |
| Requires iOS | **15.8.3** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Shun Isayama](https://appshunter.io/developer/1578976556) |

## What reviewers say

### Double memo

[App page](https://appshunter.io/ios/app/double-memo/id6502283245)

**Features:** macOS Compatibility

**In-app purchases:** none


### Frame Rate Stopwatch

[App page](https://appshunter.io/ios/app/frame-rate-stopwatch/id6744085157)

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

**In-app purchases:** none


## Frequently asked questions

### Is Double memo free?

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

### Is Frame Rate Stopwatch free?

Frame Rate Stopwatch costs $9.99, with no in-app purchases.

### Do Double memo or Frame Rate Stopwatch have ads?

Double memo shows ads; Frame Rate Stopwatch does not.

### Which is updated more often, Double memo or Frame Rate Stopwatch?

Double memo ships an update every 2 weeks, and Frame Rate Stopwatch every 3 weeks. Most recently, Double memo was updated on September 16, 2026 and Frame Rate Stopwatch on September 12, 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.*