O3 vs Catodoro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
O3
This community app allows users to earn digital currency for purchases like food and drinks. It's the official platform for engaging with the O3space community and its offerings.
- Earn o-coins
- Spend o-coins on food and drinks
- Official community app
- Exclusive offers
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Giant 24/7 cafes you can unlock with one app. Study, work, hang out, and meet new people at O3! https://www.o3space.org/terms-of-use
Catodoro
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A cat themed pomodoro app.
Screenshots
Verdict
The clearest difference is in-app purchases: Catodoro at none against O3's 1. Catodoro also leads on update cadence (every 4 days vs every 9 days). On price, ads, 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. O3 sells 1 in-app purchase, starting at $6.00 per 7 days. Catodoro asks for nothing beyond the download.
O3 ships an update every 9 days, Catodoro every 4 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | O3 | Catodoro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (7 ratings) — better | — |
| Positive reviews | 90.9% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 9 days | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 171 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | O3 Platforms Limited | Suguru Tokuda |
In-app purchases
O3
- 10HR COMBO$6.007 Days
Catodoro
No in-app purchases
