KoMU vs HiDuck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KoMU
This application analyzes workplace communication to assess politeness and sentiment. It helps users rephrase messages to ensure a respectful and clear tone, especially when dealing with potentially negative phrasing.
- Analyze communication sentiment
- Identify politeness level
- Reformulate messages
- Ensure respectful tone
- Improve clarity
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Construa uma comunicação efetiva e clara no ambiente de trabalho com o KoMU O KoMu analisará o sentimento da sua comunicação, a fim de identificar o nível de polidez da mensagem que deseja passar. Além disso, o KoMU reformula o que você deseja comunicar. Se você está em dúvida se a sua mensagem está em tom negativo, deixa com o KoMU: ele vai analisá-la e reescrevê-la de uma forma respeitosa.
HiDuck
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With Hi Duck, you'll never forget what you learned! This app combines the spaced review technique with learning tools that facilitate learning retention. Record audio explaining the content to your Rubber Duck – the "talk to your duckling" technique that facilitates memorization. Main Features: - Spaced Review: Receive reminders to review your audio recordings after 1 day, 1 week, and 30 days. - Smart Summary: After saving an audio recording, you can automatically generate a smart summary of what was said, available in your Notes for easy reference. - Gamification: Complete challenges, earn coins, and unlock exclusive accessories to customize your duck! - Complete Customization: Organize your studies with tags for each category and highlight your notes with colors, all to make your learning your own.
Screenshots
Verdict
The clearest difference is update cadence: KoMU at every 2 days against HiDuck's every 10 days. 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.
KoMU ships an update every 2 days, HiDuck every 10 days. The most recent releases landed on June 1, 2026 and September 17, 2026 respectively.
| Parameter | KoMU | HiDuck |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 2 days — better | Every 10 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.4 | 17.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Paulo Henrique Melo | Joao Mergulhao |
In-app purchases
KoMU
No in-app purchases
HiDuck
No in-app purchases
