Comparison

SAI vs FriendSync

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

SAI

Features
Read full description

"What are you doing for dinner tonight?" "When was that family gathering again?" Stop asking the same questions. Start syncing your lives naturally with SAI Calendar. From romantic dinner dates to family events and kids activities, it is the easiest and warmest way to share your time with the people who matter most. Key Features 1. Together, Yet Distinct (Multi-Group Support) Keep your work, love, and family life organized in one place. Create separate, dedicated calendars for your partner, your family, or your friends. Switch between groups instantly while keeping events perfectly organized. 2. Your Calendar, Everywhere (CalDAV Sync) You do not even need to open the app. With our powerful CalDAV synchronization, all your shared events appear directly in your iPhone native calendar app. Set it up once, and stay updated everywhere. 3. Chat Within Your Schedule It is more than just a timetable. Leave comments and reactions right on the event card. "Cannot wait for this" or "How about this place for dinner?" Turn your plans into conversations. 4. Pick Your AI Assistant Personality Choose a vibe that fits your group. Your AI assistant delivers notifications in your preferred style: - The Polite Secretary: Precise, formal, and reliable. - The Energetic Friend: "Let's go! You got this!" Full of positive energy. - The Tsundere: "I didn't do this just for you, okay? Don't forget it!" Fun and quirky alerts. 5. A Private & Secure Space Your shared moments are safe with us. Join groups only via secure invite codes. Keep your personal and shared records private and protected. Perfect For - Couples who want to sync dates and never miss an anniversary. - Families managing birthdays, holidays, and school schedules. - Groups planning trips or coordinating joint activities. Download SAI Calendar today. Closer schedules, closer relationships.

About

FriendSync

Features
Read full description

FriendSync - Meet your friends, on autopilot. Tired of 47 messages, three polls, and a Doodle link just to schedule one brunch? FriendSync is the smart group calendar that plans meetups for you. Set your availability once, get automatic suggestions, tap to confirm. Done. HOW IT WORKS 1. Create a group and invite friends with a link 2. Everyone sets their availability once 3. FriendSync suggests times that actually work 4. Tap to confirm - or reschedule in one tap WHY FRIENDSYNC? โ€ข Set it once, never chase a group chat again โ€ข Automatic suggestions instead of endless polling โ€ข Syncs with Google, Apple, and Outlook Calendar โ€ข Smart reminders that don't annoy โ€ข GDPR-compliant, servers in Europe, zero tracking BUILT FOR REAL LIFE FriendSync is for people who don't work 9-to-5: parents, shift workers, freelancers, night owls. Your schedule changes every week? FriendSync adapts - you don't have to. CUSTODY CALENDAR SUPPORT (one of a kind) FriendSync is the first group scheduler that natively understands custody schedules. Enter your rhythm once (e.g. "Week A / Week B") and FriendSync automatically knows when you're free. No more manual entry every single week. Perfect for co-parents, blended families, and anyone juggling two households. PERFECT FOR โ€ข Friend groups who rarely see each other โ€ข Co-parents, blended families, custody-sharing parents โ€ข Shift workers and people with irregular schedules โ€ข Game nights, brunches, hiking groups, book clubs โ€ข Anyone who says "we should meet up soon" - and never does FEATURES โ€ข Group calendar with automatic suggestions โ€ข Set availability once (or repeat weekly) โ€ข Custody / week-on-week-off calendar support โ€ข Calendar integration: Google, Apple, Outlook โ€ข Smart reminders that respect your attention โ€ข Invite by link - guests don't need an account โ€ข Venue suggestions (cafe, park, restaurant) โ€ข Private groups โ€ข Dark Mode โ€ข Offline support PRIVACY ISN'T AN EXTRA FriendSync is built in Germany and fully GDPR-compliant. Your data stays in Europe. No selling, no tracking, no advertising SDKs. You're in full control and can delete your account with one tap. FREE TO USE FriendSync is free. Pro features (larger groups, calendar export, premium venue suggestions) are optional - the core app stays free forever. SUPPORT & FEEDBACK Questions, ideas, or feedback? Email hello@friendsync.app - we reply personally. FriendSync is built by a small team in Germany, and every message shapes the next release. Download FriendSync and turn "we should meet" into "see you Saturday."

Screenshots

SAI4 screens
FriendSync4 screens

Verdict

The call

The clearest difference is device support: FriendSync at 3 against SAI's 1. On price, update cadence, ads and in-app purchases 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SAI ships an update every 2 days, FriendSync every 3 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard1 real difference ยท 5 level
SAI versus FriendSync: the parameters behind the verdict, then further details
ParameterSAIFriendSync
PriceFreeFree
Update frequencyEvery 2 days โ€” betterEvery 3 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad, iPod โ€” better
Requires iOS16.615.0 โ€” better
Further details โ€” not scored
Size39 MB21 MB
Age rating4+4+
DeveloperSEOK GOHBastian John

In-app purchases

None

SAI

No in-app purchases

None

FriendSync

No in-app purchases

Questions

Is SAI free?
SAI is free to download, with no in-app purchases.
Is FriendSync free?
FriendSync is free to download, with no in-app purchases.
Do SAI or FriendSync have ads?
Neither SAI nor FriendSync shows ads.
Which is updated more often, SAI or FriendSync?
SAI ships an update every 2 days, and FriendSync every 3 days. Most recently, SAI was updated on October 25, 2026 and FriendSync on October 24, 2026.

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