duck vs Aevi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
duck
This app allows users to create and share a digital diary with friends and family. Decorate entries with stickers, build memories through comments, and stay updated with notifications. Enjoy a personalized experience with customizable themes.
- Decorate diary entries
- Share daily life with friends
- Use stickers for colorful records
- Build memories with comments
- Receive diary and comment notifications
- Dark and Light themes
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duck-z is a diary app for sharing everyday life with someone you care about. Write back and forth with friends or your partner, and build memories that are all your own. • Decorate a diary that's all yours • Take turns sharing daily life with friends or your partner • Brighten your entries with stickers • Memories that grow with every comment • Get notified the moment someone special writes • Your story, every day — even when you're apart • Dark and light themes
Aevi
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Aevi is an emotion diary that listens. Open the app and chat with Aeva, your AI companion. She listens like a friend, gently guiding you to share your mood, sleep, stress, fatigue, and the small wins of your day. When you’re done, your daily log is automatically saved. Don’t feel like typing? Tap the mic and speak — Aeva will understand. 10 free conversations per day. No forms, no ratings — just talk. You can also: Generate a unique color and name for each day Review your past days on the calendar Track your emotional trends with charts Create weekly/monthly share cards to share with friends All data stays on your device — no registration required, no personal data collected. Aevi — Just talk. We’ll log it for you.
Screenshots
Verdict
The clearest difference is update cadence: Aevi at weekly against duck's every 6 weeks. 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.
duck ships an update every 6 weeks, Aevi weekly. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.
| Parameter | duck | Aevi |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (12 ratings) — better | — |
| Positive reviews | 98.3% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 54 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | SEUNGHWAN LEE | 鹏 陈 |
In-app purchases
duck
No in-app purchases
Aevi
No in-app purchases









