# Forethumb いろは vs TimeCalcX

The clearest difference is price: TimeCalcX at Free against Forethumb いろは's $0.99. TimeCalcX also leads on update cadence (every 6 months vs every 31 months). Forethumb いろは's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

TimeCalcX is free to download; Forethumb いろは costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Forethumb いろは ships an update every 31 months, TimeCalcX every 6 months. The most recent releases landed on September 17, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | Forethumb いろは | TimeCalcX |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 58.3% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 31 months | **Every 6 months** |
| Monetization | Paid | — |
| Size | 37 MB | 6 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Takuto Nakamura](https://appshunter.io/developer/1203150472) | [koji kamogawa](https://appshunter.io/developer/1488210713) |

## 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


### TimeCalcX

[App page](https://appshunter.io/ios/app/timecalcx/id1505984516)

**In-app purchases:** none


## Frequently asked questions

### Is Forethumb いろは free?

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

### Is TimeCalcX free?

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

### Do Forethumb いろは or TimeCalcX have ads?

TimeCalcX shows ads; Forethumb いろは does not.

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

Forethumb いろは ships an update every 31 months, and TimeCalcX every 6 months. Most recently, Forethumb いろは was updated on September 17, 2026 and TimeCalcX on August 26, 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.*