# Forethumb いろは vs Senryu Note

The clearest difference is price: Senryu Note at Free against Forethumb いろは's $0.99. Senryu Note also leads on update cadence (every 2 months vs every 31 months) and iOS requirement (14.0 vs 16.4). Forethumb いろは's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Senryu Note is free to download; Forethumb いろは costs $0.99 up front. Senryu Note sells 1 one-off in-app purchase. Forethumb いろは asks for nothing beyond the download.

Forethumb いろは ships an update every 31 months, Senryu Note every 2 months. The most recent releases landed on September 17, 2026 and August 2, 2026 respectively.

## The numbers

| Metric | Forethumb いろは | Senryu Note |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 58.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 31 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 37 MB | 8 MB |
| Requires iOS | 16.4 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Takuto Nakamura](https://appshunter.io/developer/1203150472) | [Mihoko Araki](https://appshunter.io/developer/1476136915) |

## What reviewers say

### Forethumb いろは

[App page](https://appshunter.io/ios/app/forethumb/id1351876497)

This app enables Japanese Morse code input on your iOS device. Once you memorize the codes, you can type even with your eyes closed. It supports single-key or paddle input with audible feedback and customizable spacing.

**Highlights:** Japanese Morse code input, Single-key or paddle input, Audible Morse feedback, Customizable space intervals, Swipe gestures for delete/space

**Features:** Vision Pro support

**In-app purchases:** none


### Senryu Note

[App page](https://appshunter.io/ios/app/senryu-note/id1619329524)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $2.99 | one-time |


## Frequently asked questions

### Is Forethumb いろは free?

Forethumb いろは costs $0.99, with no in-app purchases.

### Is Senryu Note free?

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

### Do Forethumb いろは or Senryu Note have ads?

Senryu Note shows ads; Forethumb いろは does not.

### Which is updated more often, Forethumb いろは or Senryu Note?

Forethumb いろは ships an update every 31 months, and Senryu Note every 2 months. Most recently, Forethumb いろは was updated on September 17, 2026 and Senryu Note on August 2, 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.*