MieMemo vs Decoy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MieMemo
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See your notes without unlocking. MieMemo shows your memo on the iPhone lock screen with a widget. Write it once and it appears in seconds — no need to rebuild or reset a wallpaper every time. WHY MIEMEMO - The lock screen is the first thing you see, dozens of times a day. MieMemo puts your notes right there. - Checklists for groceries and packing — tap to check items off. - Templates to start fast: Groceries, Packing, Today, Goals. - Adjustable text size and line spacing. - Wallpaper export for a full-screen look, with a Shortcuts auto-update guide on iOS 18+. - Automatic history backup — your previous note is kept when you rewrite. PEACE OF MIND - Your notes are never uploaded. Everything you write stays on your device. - Memos and widgets work offline. - Battery-friendly — no background processes. - No full-screen ads while you write or save a memo. FREE & PRO The free version is supported by ads. Free: one memo, basic themes, widgets, wallpaper export, recent history. Pro (one-time purchase, no subscription): removes ads, unlimited memos, all themes, unlimited history. Questions or requests? Settings > Contact inside the app.
Decoy
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The iPhone's own Notes app can't live on your Lock Screen. Decoy can, and nobody else can read it. Appointments, medication, errands you'd rather not explain. The Lock Screen is the surface you glance at most, and it's also the one other people see most. So some things never made it there. While your phone is locked, Decoy looks like a blank card, or whatever text you chose in advance. The moment Face ID passes, your real notes appear. ■ Made for ・Writing things down and then never looking at them again ・Living or working around people who glance at your screen ・Appointments and errands you'd rather keep to yourself ■ What it does ・Works as a to-do list, or as plain notes ・Reminders at the time you set ・Repeats daily, on weekdays, weekly, monthly ・Separate lists for separate parts of your life (Pro) ■ How it's built ・No ads ・Everything stays on your device by default. iCloud sync is there if you want it ・No accounts, no sign-in A note on what this is not: once Face ID or your passcode has been entered, anyone holding your phone can read your notes. Decoy hides things from the people around you, not from someone with your unlocked phone. Keep passwords and PINs in a dedicated password manager. Decoy Pro is a one-time purchase. It removes the note limit and adds per-note reminders, separate lists, and control over how things look while locked. Terms of Use: https://suzukimari.com/terms/ Privacy Policy: https://suzukimari.com/privacy-policy.html
Screenshots
Verdict
The clearest difference is ads: Decoy at none against MieMemo's shown. On price, in-app purchases, device support 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. MieMemo sells 1 one-off in-app purchase and Decoy sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | MieMemo | Decoy |
|---|---|---|
| Price | Free | Free |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 11 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | ERI MUNAKATA | Mari Suzuki |
In-app purchases
MieMemo
- MieMemo Pro$3.99
Decoy
- Decoy Pro$4.99







