Comparison

Forethumb いろは vs JongKey

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Forethumb いろは

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
Read full description

「Forethumb いろは」はあなたのiOSデバイス上で和文モールス符号による文字入力を可能とします。 モールス符号を暗記させしてしまえば、目隠しをしても文字を入力することができます。 【機能】 ・単鍵式またはパドル式のモールス入力により文字入力が可能です。 ・モールスの入力時に音が鳴ります。 ・単鍵式の場合、キーを左にスワイプすると「削除」、右にスワイプすると「空白の入力」ができます。 ・空白(各点の間隔)の基本長を変更することが可能です。 【注意点】 ご利用にはキーボードの追加設定が必要です(設定 -> 一般 -> キーボード)。 また、音を鳴らすためには「フルアクセスの許可」をオンにする必要があります。 ※「フルアクセスの許可」によるデータ収集は一切行いませんのでご安心ください。 【サポート】 ・不具合報告やご質問・ご要望はお気軽にご連絡ください。 ・機能追加に関しましても対応を検討させていただきます。 ・開発者は予告なく古いiOSへのサポートを終了することがあります。

About

JongKey

Features
Read full description

JongKey is a custom keyboard app that makes it easy to input mahjong tiles. Perfect for recording mahjong games, "What to discard?" discussions, and sharing on social media - making mahjong communication more enjoyable and convenient! 【Key Features】 • Easy input for all 34 types of mahjong tiles and tile backs • Supports two output formats: Unicode emoji and MPS notation • Quick input with intuitive tap operations • Supports Japanese, English, and Chinese (Simplified & Traditional) 【How to Use】 1. Add "JongKey" to keyboards in Settings app 2. Switch keyboards by tapping the globe icon in messaging apps 3. Tap mahjong tiles to input 【Output Formats】 • Unicode: Mahjong tile characters (displayed as emoji) • MPS notation: E S W N, 1m 2m 3m etc. (displayed as text) ※Full Access not required. Your input is not transmitted externally.

Screenshots

Forethumb いろは4 screens
JongKey1 screens

Verdict

The call

The clearest difference is price: JongKey at Free against Forethumb いろは's $0.99. JongKey also leads on update cadence (daily 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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

JongKey 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.

UpkeepUpdate frequency

Forethumb いろは ships an update every 31 months, JongKey daily. The most recent releases landed on October 25, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 5 level
Forethumb いろは versus JongKey: the parameters behind the verdict, then further details
ParameterForethumb いろはJongKey
Price$0.99Free — better
Positive reviews58.3% of reviews—
Update frequencyEvery 31 monthsDaily — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.4 — better17.6
Further details — not scored
Size37 MB6 MB
Age rating4+4+
DeveloperTakuto NakamuraYuki Takeda

In-app purchases

None

Forethumb いろは

No in-app purchases

None

JongKey

No in-app purchases

Questions

Is Forethumb いろは free?
Forethumb いろは costs $0.99, with no in-app purchases.
Is JongKey free?
JongKey is free to download, with no in-app purchases.
Do Forethumb いろは or JongKey have ads?
JongKey shows ads; Forethumb いろは does not.
Which is updated more often, Forethumb いろは or JongKey?
Forethumb いろは ships an update every 31 months, and JongKey daily. Most recently, Forethumb いろは was updated on October 25, 2026 and JongKey on October 11, 2026.

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