Best Selfletter alternatives: apps like Selfletter: Time Capsule Diary

10+ similar apps compared and reviewed

4.7 avg rating
10 free apps
Updated October 2026

Looking for something like Selfletter? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to Selfletter

More apps like Selfletter

4
Unsent: Breakup Recovery
Unsent: Breakup Recovery
Unsent: Breakup Recovery
No Contact & Healing Journal
Free
💪 Health & Fitness
(0)
5
TMRW: Write to Future You
TMRW: Write to Future You
TMRW: Write to Future You
See your progress in life
Free

Write and seal letters to your future self, to be unlocked at a chosen date. An AI companion helps you reflect on your thoughts, and the app tracks your milestones, visualizing your personal growth journey.

Write letters to future selfSchedule letter unlocksAI-powered reflection on letters
💪 Health & Fitness
(8)
freemium
6
Become: Identity Habit Tracker
Become: Identity Habit Tracker
Become: Identity Habit Tracker
Cast Votes for Your Identity
Free

This app helps you build lasting habits by focusing on the identity you want to embody. It uses a unique 'cast your vote' mechanic to track progress, emphasizing small, consistent actions that compound over time. The system encourages growth without the pressure of streaks or guilt.

Identity-based habit trackingCast your vote completion mechanicEmergency habit versions
💪 Health & Fitness
(3)
freemium
7
Hoo-Ha: Period & Cycle Tracker
Hoo-Ha: Period & Cycle Tracker
Hoo-Ha: Period & Cycle Tracker
Offline. Private. Encrypted.
Free

This private, offline cycle tracker offers detailed period, ovulation, and fertility estimates. It supports tracking various symptoms, medications, and life stages like pregnancy and postpartum. Data is stored locally and encrypted, with optional Apple Health integration.

Private, offline data storagePeriod, ovulation, fertility estimatesBBT charting and symptom logging
💪 Health & Fitness
(4)
free
8
Lifemate - AI Health Friend
Lifemate - AI Health Friend
Lifemate - AI Health Friend
AI Health, Wellness, & Therapy
Free

This AI-powered health companion analyzes your unique data to provide personalized insights and recommendations for optimal well-being. Engage in conversations for mental health support, fitness coaching, or general health guidance. Customize summaries and add personal reflections for tailored advice.

Customizable health summariesAI chat for therapy and coachingPersonal reflection logging
💪 Health & Fitness
(5)
free with in-app purchases
9
Pill Reminder & Medicine Alarm
Pill Reminder & Medicine Alarm
Pill Reminder & Medicine Alarm
Counter, Vitamin Tracker
Free

Manage your medications, vitamins, and supplements with smart reminders and detailed tracking. Monitor adherence, inventory, and health metrics with an intuitive interface. Schedule appointments and export your history for healthcare providers.

Comprehensive medication trackingCustomizable smart remindersAdherence and history tracking
💪 Health & Fitness
(3)
freemium
10
Water tracker WaterChamp
Water tracker WaterChamp
Water tracker WaterChamp
Hydration & Caffeine reminder
Free

This app tracks your daily water and caffeine intake, visualizing your hydration levels and caffeine impact throughout the day. It offers personalized reminders and integrates with health apps to adjust goals based on your activity and sleep. Log over 60 different drinks with custom hydration values.

Hydration and caffeine trackingPersonalized remindersCustomizable drink logging
💪 Health & Fitness
(9)
freemium