PromptSmith vs 履歴メモ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PromptSmith
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PromptSmith is an app that automatically generates “optimized prompts” to help you get more accurate and higher-quality responses from AI. Simply enter your question, and the app creates professional-grade instructions that anyone can use—no expertise required. In addition, nothing you type is ever sent outside the app. All processing is completed locally on your device, ensuring safe and secure use. ■ Key Features • No login required — start immediately No account creation, email registration, or setup needed. Just open the app and use it instantly. • Automatically generates optimized prompts from your input Your text is transformed into clear, structured instructions that AI can easily understand, improving response accuracy. • Professional-level prompts for beginners Even without prompt engineering knowledge, anyone can produce high-quality prompts that draw out precise AI responses. • Works with any AI service—not only ChatGPT Compatible with Claude, Gemini, Copilot, LINE AI chat, and most AI platforms. Simply copy and paste the generated prompt.
履歴メモ
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「履歴メモ」は、メモのバージョン管理が必要なユーザーのために作られたノートアプリです。保存するたびに変更履歴が自動で積み重なり、過去のどのバージョンにもいつでも戻れます。 【こんな方におすすめ】 ・文章を何度も書き直すことが多い方 ・過去の下書きや変更内容を確認したい方 ・アイデアの変遷を記録しておきたい方 ・議事録・仕様書など大事な文書を管理したい方 【主な機能】 ・ドキュメントの作成・編集・削除 ・保存ごとに変更履歴を自動記録(バージョン管理) ・2バージョン間の差分比較(追加を緑・削除を赤で表示) ・過去バージョンへのワンタップ復元 ・全文検索(スペース区切りでAND検索対応) ・未保存のドラフトを自動キープ ・シンプルで直感的なUI 書きかけの内容はドラフトとして自動保存されるため、誤って閉じてしまっても安心。文章の変化をそのまま記録として残したい方に最適なメモアプリです。
Screenshots
Verdict
The clearest difference is iOS requirement: 履歴メモ at 15.6 against PromptSmith's 18.5. On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | PromptSmith | 履歴メモ |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | — |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.5 | 15.6 — better |
| Further details — not scored | ||
| Size | 5 MB | 5 MB |
| Age rating | 12+ | 4+ |
| Developer | AKIRA SASAKI | hirokazu murabe |
In-app purchases
PromptSmith
No in-app purchases
履歴メモ
No in-app purchases









