duck vs Plan B Archive
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
Plan B Archive
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When your everyday shampoo is suddenly sold out, or that pen you really loved gets discontinued, have you ever spent ages searching and wondering, "What was that other one that was pretty good?" Keep track of your alternatives in advance with Plan B Archive. It is your personal item catalog that helps you shop smartly anytime, anywhere. [Key Features] Pair Originals with Alternatives Save your original 'Plan A' item and its perfect 'Plan B' alternative as a matching set. No need to panic over sudden stockouts or discontinued products. Clean Capture & One-Touch Sharing Easily share your saved item information as a clean image with the in-app share button. It is incredibly useful when asking family or friends to buy an alternative if the original is out of stock. Secure Google Drive Backup Do not worry about losing your precious records when you change phones. Link your Google account to safely back up and restore your data on Google Drive. Fast & Secure Without Login No annoying or complicated sign-up process. All data is securely stored locally on your device, so you can access it quickly anytime, even offline.
Screenshots
Verdict
The clearest difference is update cadence: Plan B Archive 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, Plan B Archive weekly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | duck | Plan B Archive |
|---|---|---|
| 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, iPod — better |
| Requires iOS | 16.0 | 15.5 — better |
| Further details — not scored | ||
| Size | 54 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | SEUNGHWAN LEE | shin donghyuck |
In-app purchases
duck
No in-app purchases
Plan B Archive
No in-app purchases









