HeartSync: Love Diary
Couple Journal: Both Write
Free · In‑App Purchases · Designed for iPad
Nothing opens until you both write. One Both of us plan covers you and your partner, and yearly plans start with a 3-day free trial.
A love diary you keep with your partner, where nothing opens until you both write. Most journals get abandoned because nobody is waiting on them. In HeartSync, your partner is.
Each day or week, you both answer three short prompts, called heartbeats: something sweet your partner did, a moment that made you smile, and a reason you're grateful. You write yours, they write theirs, and neither of you can read the other's until you've both finished. Then the check-in opens for both of you at once.
WRITE APART, OPEN TOGETHER
Your couple jornal doesn't need polished words. Write what you meant, then read your partner's side when you've both finished.
THREE GOOD THINGS, FOR TWO
Writing down three good things is a well-known gratitude practice. You each write your own three; after you both finish, they become part of your shared journal.
YOUR MOMENTS, KEPT
Every check-in you both finish becomes a moment in Memories, photos included. Search your moments, or pick a date on the calendar to find one.
A RUN YOU BUILD TOGETHER
HeartSync counts the check-ins you both finish back to back. Miss one and the run starts over, and your best run is kept. When a run is on the line, your reminder says so, and if you still haven't written, a last call can follow before the day or week is out. Change the reminder time, or turn reminders off, in Settings.
MILESTONES
Anniversaries, trips, the day you moved in. Count down to the next one or count the days since.
YOUR RHYTHM
Write daily or weekly, at a reminder time that suits you. You'll also hear when your partner has written.
ALSO IN HEARTSYNC
Whispers: send a doodle, a photo or a single line to a widget on your partner's Home Screen. You choose how long it stays.
Letters: write one now, send it, or seal it to open on a day you choose.
Voice clips: add a short recording to your check-in.
Look backs: a month or a year of your check-ins, together.
App lock: keep your journal behind Face ID or your passcode.
Make it yours with colour themes, writing fonts and journal covers.
JUST THE TWO OF YOU
You and your partner keep this relationship journal together. Link with a private invite code; what you write stays hidden from each other until you've both finished the check-in.
FREE AND PREMIUM
Free: the full journal, Memories, your run, reminders, Whispers, letters, app lock, up to 3 milestones, and photos on your first 3 check-ins.
Premium: photos on every check-in (up to 5 each), voice clips, unlimited milestones, the milestone Home Screen widget, Whisper history, the full look back, extra themes, fonts and covers, and no ads.
Choose Just me, for your own account, or Both of us, where one subscription covers you and your linked partner. Each is billed monthly or yearly. Yearly plans start with a 3-day free trial for eligible new subscribers; when it ends, the yearly price is charged to your Apple Account. Subscriptions renew automatically unless you cancel at least 24 hours before the end of the current period. Manage or cancel in your App Store account settings.
Terms of Use: https://heartsync.webdevnc.com/terms/
Privacy Policy: https://heartsync.webdevnc.com/privacy-policy/
Ratings & Reviews
New: lock the app with Face ID or your passcode. Seal a letter for your partner to open later. Add a voice clip to a check-in. Get milestone reminders. Pick colour themes, writing fonts and journal covers. Fresh prompts, monthly look backs, a weekly "Who wrote this?" round, and a photo grid and past-years throwbacks in Memories. Some of these are part of Premium. Fixed: lost typing in a heartbeat, and your first heartbeat now carries through sign-up.
The developer, Jasuda Tech, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Financial Info
- Contact Info
- User Content
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- JASUDA TECH
- Size
- 63.8 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPad
Requires iPadOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Mac
Requires macOS 12.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
18+
- 18+
- Contains
Advertising
Messaging and Chat
User-Generated Content
- In-App Purchases
Yes
- HeartSync Premium - Just me $59.99
- HeartSync Premium - Both of us $14.99
- HeartSync Premium - Both of us $79.99
- HeartSync Premium $9.99
- Copyright
- © 2026 Jasuda Tech