Sotto（そっと） vs WorkReply
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sotto（そっと）
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選んでAI 選択した文章を、そのままAIに質問。 アプリを開く必要はありません。 コピー＆ペーストも不要です。 文章を選択 → 共有 → 「選んでAI」 これだけで、意味・返信・言い換えを瞬時に生成します。 主な機能 ・文章の意味をわかりやすく解説 ・失礼のない返信文を自動生成 ・丁寧な言い換えに変換 ・共有拡張対応（どのアプリからでも利用可能） SNS、メール、チャット、ニュース記事など あらゆる文章を、すぐにAIへ。 シンプルで静かなAI体験を。
WorkReply
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WorkReply: AI Email Assistant helps you save time when replying to business emails. Paste an incoming email, choose a tone, and let AI generate a response suited to the situation in seconds. Choose from six tones: • Polite • Extra Polite • Gentle • Decline • Follow-Up • Apology Understand the wording: See bullet-point explanations of why particular expressions were used in the generated reply. Key features: • Save up to 20 templates • Keep up to 200 replies in your history • Copy a reply with one tap • Regenerate a reply • Cancel generation in real time • Clearly displayed 3,000-character limit • View saved history offline • Available on iPhone, iPad, and Mac How it works: 1. Paste the email you received. 2. Select a tone. 3. Generate a reply. 4. Copy it with one tap. Plans: • Free: Generate up to three replies per day • Unlimited: ¥480 per month Privacy: • Data is stored on your device • No ads • No tracking • No data is stored on servers EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://iogami0103.github.io/work-reply-app/
Screenshots
Verdict
The clearest difference is in-app purchases: Sotto（そっと） at none against WorkReply's 1. WorkReply's advantage is device support. On price 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
Both are free to download. WorkReply sells 1 in-app purchase, starting at $2.99 per month. Sotto（そっと） asks for nothing beyond the download.
| Parameter | Sotto（そっと） | WorkReply |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 5 days |
| Ads | — | No |
| In-app purchases | No — better | Yes |
| Devices | — | iPhone, iPad — better |
| Requires iOS | 17.6 | 17.6 |
| Further details — not scored | ||
| Size | 4 MB | 2 MB |
| Age rating | 12+ | 4+ |
| Developer | Yatuki Misora | TATSUYA ASANO |
In-app purchases
Sotto（そっと）
No in-app purchases
WorkReply
- Monthly Plan$2.991 Month
