Best HeartShelf alternatives: apps like HeartShelf

Letter to your future

Send letters to your future!!

Free

Send messages to yourself in the future with this intuitive app. Schedule delivery for a specific date and receive notifications when your letter arrives. Protect your thoughts with a passcode lock for privacy.

Countdown & Days Until Widget

Birthday & Anniversary Timer

Free

Track upcoming events and anniversaries with a simple countdown. Get instant updates with home and lock screen widgets, and receive timely notifications. Seamlessly import events from your calendar for automatic tracking.

Moment Diary (journal)

by Tomonari Sonoda

Free

This private diary app allows you to record your thoughts and experiences through text, voice memos, videos, and photos, all automatically timestamped. It offers robust backup, restore, and export options, along with security features like passcode lock and the ability to sync with other devices.