Mnemo vs Juwajom
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Mnemo
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Mnemo is a private notebook for things you want to remember. File a note, a quote, a recipe, a place, or a person, then set how often you want to see it again. When that day comes, Mnemo puts it back in front of you. Capture in a few taps. Type the idea, attach a photo of a paper page, or record a short voice memo. Tag the entry and pick a type so the archive stays easy to scan. Review on your own schedule. Choose an interval when you file. Home shows what is due today. Open the queue, mark Got it to push the next date out, or Skip to see it sooner. Stats keeps a simple retention curve on the device. Quills are an optional consumable currency. Spend them on perks such as watermark-free exports, PDF export, a longer voice memo, a custom reminder window, or extra tag colours. Buy a pack when you want more. There is no subscription. Everything stays on this iPhone. There is no account, no cloud, and no other users. Reminders are local. Camera, photos, microphone, and tracking are requested only when you use those features, and you can decline.
Juwajom
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Juwajom is a local darkroom for stills. Capture or import a plate, lay one of seventeen composition guides on the frame, write what you see, and save a composition review print on this iPhone. The work happens on the photograph. Guides such as Rule of Thirds, Phi Grid, Golden Spiral, Diagonal Method, and Vanishing Point sit on the plate. Opacity, offset, scale, and line weight are camera dials, not a separate worksheet. Previewing a guide does not use a credit. When the observation is ready, one Composition Review Credit writes a PNG print. Credits stay on this device. Clearing all local data or removing the app deletes remaining credits. Juwajom does not post photos and does not connect to a Juwajom server to save records. Camera, Photos, and Microphone are requested only after you tap Capture Plate, Import Plate, Save to Photos, or Record Observation. You can refuse any of these and keep the other path that still works.
Screenshots
Verdict
Mnemo and Juwajom are too close to call on the numbers: across 6 compared parameters โ price, update cadence, ads and in-app purchases among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Mnemo sells 8 one-off in-app purchases and Juwajom sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.
| Parameter | Mnemo | Juwajom |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details โ not scored | ||
| Size | 5 MB | 8 MB |
| Age rating | 17+ | 17+ |
| Developer | Levi Hoekstra | SANID LORENZ |
In-app purchases
Mnemo
- Quills 1$0.99
- Quills 2$2.99
- Quills 3$4.99
Show 5 moreShow fewer
- Quills 4$6.99
- Quills 5$9.99
- Quills 6$19.99
- Quills 7$49.99
- Quills 8$99.99
Juwajom
- Credits 1$0.99
- Credits 2$2.99
- Credits 3$4.99
Show 4 moreShow fewer
- Credits 4$9.99
- Credits 5$19.99
- Credits 6$49.99
- Credits 7$99.99







