O vs Pearls.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
O
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O-Marche is a circular economy and sustainability app that allows users to exchange secondhand items within groups.
Pearls.
Send messages to yourself or others that unlock at a future date. Explore a personalized timeline of past and future moments. Collect, share, and unlock these special 'Pearls' when they matter most.
- Create time-locked messages
- Personalized future timeline
- Explore past memories
- Collect and share 'Pearls'
- Unlock messages at specific times
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Pearls is more than just a message; it's a way to connect across time. Create time locked messages that wait patiently in the future, ready to encourage, celebrate, or comfort exactly when the time is right. Pinch, zoom, and explore a personalized timeline of moments, revisiting memories from the past and awaiting surprises in the future. Your life is full of Pearls—Collect them, share them and unlock them when they matter most.
Screenshots
Verdict
The clearest difference is update cadence: O at every 6 days against Pearls.'s monthly. O also leads on iOS requirement (13.0 vs 15.0). 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.
O ships an update every 6 days, Pearls. monthly. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.
| Parameter | O | Pearls. |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 6 days — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 25 MB | 25 MB |
| Age rating | 4+ | 12+ |
| Developer | Sumire Kobayashi | My Little Pearls LLC |
In-app purchases
O
No in-app purchases
Pearls.
No in-app purchases









