Best 100 Days Tracker Apps

242+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated May 2026

Looking for free 100 days tracker apps? 20 of our 242+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for 100 Days Tracker

DayCount#1

DayCount by Zaminiti Pty Ltd

Countdown Days Until Or Since
Editor's Choice
📊 Productivity
4.7😊(26K ratings)
FreeIn-App Purchases
DayCount screenshot 1
DayCount screenshot 2
DayCount screenshot 3
DayCount screenshot 4
DayCount screenshot 5
DayCount screenshot 6

What We Love

  • 👍 Intuitive and easy to use
  • 🚀 Clean and fast app
  • 💡 Customizable backgrounds and themes
  • 🎨 Beautiful and visually appealing design

Room to Improve

  • 🔒 Requires sign-in/account to use full features
  • 💰 Paid subscription for advanced features
  • 🐛 Bugs and glitches after updates
Habit Tracker#3

Habit Tracker by Inner Grow Limited

Goal Tracker & ADHD Planner
Worth Considering
📊 Productivity
4.8😊(142K ratings)
FreeIn-App Purchases
#91in Productivity
Habit Tracker screenshot 1
Habit Tracker screenshot 2
Habit Tracker screenshot 3
Habit Tracker screenshot 4
Habit Tracker screenshot 5
Habit Tracker screenshot 6

Track your daily habits, set goals, and monitor your progress with this handy habit-tracking app. Stay motivated and achieve your objectives easily. Start tracking today!

What We Love

  • 👍 Customizable and user-friendly interface
  • 🚀 Efficient and intuitive habit tracking
  • 💡 Comprehensive data visualization and progress tracking
  • 🔒 Secure and reliable app with no ads

Room to Improve

  • 🐛 Occasional bugs and glitches
  • 🔒 Lack of iCloud sync and cross-device support
  • 🔒 Limited free version with restricted features

More 100 Days Tracker apps to explore

4
Days Since: Quit Habit Tracker
Days Since: Quit Habit Tracker
Days Since: Quit Habit Tracker
Sober Time Clean Day Counter
Free

Track and break bad habits with a personalized counter. Stay motivated by seeing how long it has been since you last engaged in the habit you want to quit. Visit the website for more information.

💪 Health & Fitness
(18K)
5
DAY100-100 Days Habit
DAY100-100 Days Habit
DAY100-100 Days Habit
Take on the 100-day challenge!
Free

This app helps you form lasting habits by doing small, consistent actions every day for 100 days, with a simple and intuitive design to track your progress. Start building better habits today with just one small step and take on the 100-day challenge to achieve your goals.

💪 Health & Fitness
(3)
6
Hundred Day Challenge
Hundred Day Challenge
Hundred Day Challenge
Track Your 100 Day Challenge
Free
📊 Productivity
(0)
7
75 Days Challenge Tough & Soft
75 Days Challenge Tough & Soft
75 Days Challenge Tough & Soft
75 soft medium fitness tracker
Free

Embark on a 75-day challenge to push your limits with daily tasks focused on physical activity, mental well-being, and personal growth. Join now to begin your journey towards self-improvement and achieve lasting transformation.

💪 Health & Fitness
(7.6K)
8
100-Day Habit Tracker
100-Day Habit Tracker
100-Day Habit Tracker
by KENICHI YAMAMOTO
Free
💪 Health & Fitness
(0)
9
100 DEDICATED - Goal Tracker
100 DEDICATED - Goal Tracker
100 DEDICATED - Goal Tracker
100 Day Challenge & Streaks
Free
$0.99 | 100% OFF

Track and achieve one goal over 100 days with a minimalist, distraction-free app. Set daily goals, mark your progress on a 10x10 grid, and stay focused on building lasting habits. Download now to start your 100-day journey!

💪 Health & Fitness
(0)
10
Country Days Tracker: Bounded
Country Days Tracker: Bounded
Country Days Tracker: Bounded
Stay visa and tax compliant
Free
✈️ Travel
(49)
11
100Days - Habit Tracker
100Days - Habit Tracker
100Days - Habit Tracker
Track your 100 day streak
Free
🌟 Lifestyle
(1)
12
Do It Note
Do It Note
Do It Note
Simple Goal Tracker
Free

This simple goal management app helps you build and maintain good habits by setting and tracking goals over a set period, using stickers to mark daily achievements. With features like customizable goal periods, stickers, and notifications, you can stay on track and view your progress at a glance.

🌟 Lifestyle
(2)
13
Push Up Counter & Tracker
Push Up Counter & Tracker
Push Up Counter & Tracker
100 pushups in 6 weeks
Free

Get fit with our Push Up Counter and Tracker app! Use AR technology to automatically count push-ups, choose from 4 workout modes, track your progress with detailed statistics, and stay motivated to reach your goals. Start your journey to 100 push-ups in 6 weeks today!

💪 Health & Fitness
(2.3K)
14
Sober: Recovery Tracker
Sober: Recovery Tracker
Sober: Recovery Tracker
Sobriety & Addiction Counter
Free

Transform your life with a comprehensive sober day tracker and toolkit that supports your journey to sobriety. Connect with a supportive community, track milestones, receive motivation, and access tools to navigate cravings and emotions. Join the Sober community and unlock 12 potential benefits for a brighter future.

🌟 Lifestyle
(7.5K)
15
MixerBox BFF: Location Tracker
MixerBox BFF: Location Tracker
MixerBox BFF: Location Tracker
GPS Tracker Safe Life 365 Days
Free

An app for easily sharing your location with friends and family, allowing you to see each other's whereabouts instantly with features like speed and battery level tracking. Securely add friends through email or QR code, and locate lost phones on the map. Download now to stay connected!

🌐 Social Networking
(7.1K)
16
90 Day Challenge
90 Day Challenge
90 Day Challenge
by Browney B.V.
Free

Embark on your fitness journey with personalized 90-day programs tailored to your goals, level, and training style. Track your progress, take progress photos, access recipes and educational content, and challenge friends for added motivation. Start your 7-day free trial today and kickoff your 90 Day Challenge!

💪 Health & Fitness
(4.5K)
17
Death Clock: Free Blood Test
Death Clock: Free Blood Test
Death Clock: Free Blood Test
Change your death date with AI
Free

"AI-Powered Longevity" is an application that utilizes artificial intelligence to predict a user's lifespan based on various health and lifestyle factors. Gain insights into your longevity and make informed choices by using this innovative tool today.

💪 Health & Fitness
(15K)
18
Menstrual Calendar FMC
Menstrual Calendar FMC
Menstrual Calendar FMC
Period Tracker, Fertile Days
Free

An intuitive period tracking and fertility prediction app, allowing users to record their menstrual cycles, moods, weight, and wellness data. Features include customizable tracking options, cycle statistics, privacy settings, and integration with FertilityFriend for advanced analytics. Take control of your cycle with accurate predictions and personalized reminders.

💪 Health & Fitness
(190)
19
Fertility Friend FF Tracker
Fertility Friend FF Tracker
Fertility Friend FF Tracker
Ovulation Cycle & Fertile Days
Free

An advanced ovulation and period tracking app that helps you determine fertile days, track fertility signs, and offers personalized insights, tips, and analysis to aid conception. Enhance your fertility awareness and track your journey seamlessly with this comprehensive fertility friend app.

💪 Health & Fitness
(7.3K)
20
Period Tracker Period Calendar
Period Tracker Period Calendar
Period Tracker Period Calendar
Cycle Tracker & Ovulation
Free

Track your menstrual cycle, ovulation period, and fertility window with this intuitive application. Stay informed about your reproductive health and make informed decisions about your well-being. Download now to take control of your cycle.

💪 Health & Fitness
(2.3K)