OOONO vs MerciMemo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OOONO
Receive real-time alerts for speed cameras and road hazards, enhancing your safety and reducing travel stress. Connect to a global community of drivers for up-to-the-minute information on traffic conditions.
- Real-time speed camera warnings
- Road hazard alerts
- Live reports from millions of drivers
- Works in 80+ countries
- No distracting display
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Traffic sucks. It sucks a little less when you know what’s coming up ahead on the road. That makes your trip quite safer too. And that’s exactly what the OOONO CO-DRIVER does. It warns you on all types of speed cameras and road hazards, thanks to live reports from millions of drivers in the OOONO community. Just get the app, connect it with your CO-DRIVER and you’re ready to hit the road more knowingly than ever before. WHY OOONO? - Warnings in your local area on all types of speed cameras and road hazards - Reports from millions of drivers every day - Works in 80+ countries - Several data sources - No display to distract in traffic HOW TO GET STARTED - Download the OOONO connect app - Pair your smartphone with your CO-DRIVER - Follow the in-app setup instructions - Place the CO-DRIVER in your car, buckle up and gooo
MerciMemo
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MerciMemo helps you keep track of everyone you want to thank. Add people, note key dates or events, and plan exactly when and how to express your gratitude—so you never miss a moment to say “thank you.”
Screenshots
Verdict
The clearest difference is ads: OOONO at none against MerciMemo's shown. MerciMemo's advantage is update cadence (every 3 days vs every 3 weeks) and device support (3 vs 1). On price and in-app purchases 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.
OOONO ships an update every 3 weeks, MerciMemo every 3 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.
| Parameter | OOONO | MerciMemo |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 57.3% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.1 | 15.6 — better |
| Further details — not scored | ||
| Size | 103 MB | 71 MB |
| Age rating | 4+ | 4+ |
| Developer | ooono AS | Hiroki Kijima |
In-app purchases
OOONO
No in-app purchases
MerciMemo
No in-app purchases
