O2O Renewables vs Sync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
O2O Renewables
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Mattermost is workplace messaging from behind your firewall. - Discuss topics in private groups, one-to-one or team-wide - Find what you're looking for with full text search, filters and #hashtags - Easily share images, video, audio and files - Personalize your experience with custom colors, formatting and fonts - Connect in-house systems with webhooks and Slack-compatible integrations To use this app, you need a "Server URL" from a Mattermost server. To host your own server go to https://about.mattermost.com/download Find the Terms of Service for this app here: http://www.mattermost.com/terms/ This is a reference implementation of an open source Mattermost app available at: https://github.com/mattermost/mattermost-mobile
Sync
This app turns meaningful clock moments into a simple way to connect with loved ones. Catch a magic minute and send it to someone special, fostering connection without social media pressure. It's a quick ritual to show you're thinking of them.
- Catch meaningful clock moments
- Send instant connection pings
- Receive and respond to pings
- Track shared moments
- Invite friends via text
- No contact upload required
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A tiny ritual to stay connected with loved ones through patterns in time. Some minutes are too perfect to keep to yourself. 11:11. 12:34. 12:21. 22:22. A few times each day the clock lands on something beautiful — and for one minute, it belongs to you and the people you care about. Sync turns that tiny moment into a reason to reach out. Catch a magic minute, send it to someone you love, and you've said "thinking of you" in two taps — no feeds, no scrolling, no pressure. HOW IT WORKS - Catch the moment — when the clock hits a meaningful minute (a repeat like 11:11, a run like 12:34, a palindrome like 12:21, a mirror like 13:13), the SEND button lights up. - Send it to the people you love — pick your friends. They get a gentle ping and 30 minutes to catch it back. - Stay close — when someone catches it back you both score a little, but the real win is staying in touch with people you actually know. - Look back — your Discoveries log keeps every rare minute you've shared and who shared it back. WHY PEOPLE LOVE IT - A 60-second ritual, not another feed to scroll. - Stay close to the people you already text. Add friends from your contacts, or anyone by name and number with a full country-code picker — no contacts permission required. - Invite the rest. Not on Sync yet? Send a one-tap text invite. - A real reason to glance at the clock. Suddenly 11:11 means someone. Your contacts stay on your device — Sync never uploads anyone you don't add as a friend. Sync is free and made for the people you love. Catch the next magic minute and stay connected.
Screenshots
Verdict
The clearest difference is update cadence: Sync at every 8 days against O2O Renewables's every 4 months. 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.
O2O Renewables ships an update every 4 months, Sync every 8 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | O2O Renewables | Sync |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (5 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Every 4 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 82 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Ecopower Academy Northern Europe AB | SilverGrid Technology LLC |
In-app purchases
O2O Renewables
No in-app purchases
Sync
No in-app purchases









