Suro vs OK Calendar
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Suro
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Suro is a shared corkboard for the people you do life with. Lists, calendar, notes, files and shared expenses for your group, in one calm place โ so you can stop juggling chats, spreadsheets and reminders. LISTS Shopping lists, packing lists, to-dos. Organize items into categories, save reusable templates, and check things off together in real time. CALENDAR Plan trips, dinners and birthdays. Link a list or a note to an event so the packing or the shopping is right where you need it. Subscribe from third-party calendars. NOTES & FILES Share rich-text notes, photos and PDFs with the whole group. No more digging through chat history. SHARED EXPENSES Track who paid for what, split the bill fairly, and let Suro work out the simplest way to settle up. STAY IN THE LOOP Get notified when someone updates a list, adds an event, or settles a debt. No chat-app noise. MADE FOR THE GROUPS IN YOUR LIFE โข Flatmates โ keep the shopping, chores and bills under control, together, not just in one person's head. โข Families โ from weekly meal planning to holiday packing, share what matters with the people at home. โข Friend groups โ plan the trip and split the costs without endless group-chat scrolling. Start your first group in under a minute: sign in, create a group, and invite your people with a link. No credit card, no setup. Suro doesn't sell your data and runs no algorithmic feeds.
OK Calendar
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Orthodox Korea Calendar brings the rhythm of the Orthodox Church to your phone โ in both English and Korean. Each day, see the feasts and fasts of the liturgical year, the saints commemorated, the appointed Scripture readings, and the tone of the week โ clearly presented and easy to follow whether you're at home, at church, or on the go. Stay connected to the community with shared events, and never miss a service, feast, or gathering thanks to timely reminders. FEATURES โข Today view โ feasts, fasts, commemorated saints, Scripture readings, and liturgical tone for any day โข Monthly calendar โ see the whole month at a glance and tap any day for details โข English & Korean โ switch languages instantly; every feast and reading in your language โข Community events โ services, celebrations, and announcements, including recurring events โข Reminders โ optional notifications so important days never slip by โข Available offline โ liturgical data is saved to your device, so the calendar works without a connection โข Clean, reverent design inspired by the Byzantine tradition Whether you are a lifelong Orthodox Christian, a catechumen, or simply exploring the faith, Orthodox Korea Calendar helps you live the Church year, one day at a time. Free to use.
Screenshots
Verdict
The clearest difference is update cadence: Suro at every 4 days against OK Calendar's every 11 days. On price, ads, in-app purchases and device support there is nothing between them.
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. Neither carries in-app purchases, so what you see is what you pay.
Suro ships an update every 4 days, OK Calendar every 11 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.
| Parameter | Suro | OK Calendar |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days โ better | Every 11 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad โ better |
| Requires iOS | 16.4 | 16.4 |
| Further details โ not scored | ||
| Size | 48 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Roger Clotet | Nikolaos Pinatsis |
In-app purchases
Suro
No in-app purchases
OK Calendar
No in-app purchases









