Mochi Heartline
One kind message at a time
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
One kind message at a time. Keep the ones that land, put them on your home screen, and pick a look that suits the day. No ads, no account, no streaks.
Heartline hands you one kind message at a time.
Open it and there's a single card waiting — something warm, something proud of you, something that says the thing you needed to hear today. Swipe for another. Tap the heart to keep the ones that land.
That's the whole app. There's no feed to scroll, no streak to protect, and nobody to perform for.
A DECK YOU PLAY WITH
One message, full screen, breathing gently. Swipe right for the next one, left to go back, or tap the heart to save it. Every message carries its own illustration and a tone — warm, playful, proud, missing you, or just because.
KEEP WHAT MATTERS
The messages you save collect in Saved, searchable, waiting for the day you need to read them again.
ON YOUR HOME SCREEN
Add the widget and the latest message sits quietly on your home screen, no app-opening required.
FOUR LOOKS, FOUR MOODS
Cozy Heart, French Kiss, Sakura Pop, and Lantern Glow each change the colours, the typography, the way the card moves, and bring their own gentle background music. Pick whichever suits the day.
SEND IT ON
Any message can be shared — for the days when the right words are meant for someone else.
WHAT ISN'T HERE
No ads. No account, no sign-up, no password. No streaks, no guilt, and nothing nagging you to come back. The messages you keep and the settings you choose stay on your device.
Heartline is free, and the warmth stays free.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
A quiet update — the messages are all where you left them.
• Feedback now opens right here in the app, instead of handing you off to Safari.
• Settings has a new About link, and shows which version you're running.
The developer, PTK Ventures LLC, 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 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
- PTK Ventures LLC
- Size
- 13.9 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 PTK Studio