Comparison

100 Days Tracker vs Days Countdown

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

100 Days Tracker

This app helps you build lasting habits by tracking your daily progress on up to 100-day challenges. Customize your goals with themes and layouts, and share your achievements. Widgets offer at-a-glance progress updates.

Highlights
  • Track multiple 100-day challenges
  • Home screen widgets for progress
  • Customizable color themes
  • Grid and overview layouts
  • Share progress snapshots
Features
Read full description

Set a goal. Track 100 days. Build a habit that sticks. 100 Days Tracker helps you commit to your goals by tracking daily progress over 100 days. Whether it's fitness, learning, creativity, or personal growth β€” create a challenge, tap each day as you go, and watch your consistency build. Now with multiple challenges and Home Screen widgets, staying on track has never been easier. TRACK MULTIPLE GOALS AT ONCE - Pro Feature Create separate 100-day challenges for everything you want to achieve. Learn a language, exercise daily, read more, practice an instrument β€” run them all side by side. HOME SCREEN WIDGETS - Pro Feature Add widgets to your Home Screen to check progress and mark days complete at a glance β€” no need to open the app. MAKE IT YOURS β€’ Choose from vibrant colour themes for each challenge β€’ Switch between detailed grid and 100-day overview layouts β€’ Toggle animations and background gradients SHARE YOUR PROGRESS Proud of your streak? Share a snapshot of your progress grid with friends and family. 100 DAYS PRO LIFETIME Unlock unlimited challenges. Use Widgets to monitor and update at a glance. Existing users who started before Pro was introduced get Pro access for free. Start your first 100-day challenge today. Family Sharing Enabled.

About

Days Countdown

Features
Read full description

Countdown to Your Most Important Moments! Never lose track of special days again. With Days Event Countdown Birthdays, you can easily track how much time is left until birthdays, anniversaries, vacations, holidays, and any other important events. Create Custom Countdowns Set up countdowns for personal events like mom’s birthday, an anniversary, a big trip, or an upcoming celebration. Get Ready-to-Use Countdown Presets Quickly access built-in countdowns for New Year’s Eve, Christmas, Valentine’s Day, Mother’s Day, and more. Stay Notified with Smart Reminders Never forget an important date. Set custom alerts and notifications so you’re always prepared in advance. Home Screen Widgets for Quick Access Add beautiful countdown widgets to your home screen and track days left without opening the app. Simple, Fast, and Intuitive A clean and easy-to-use interface lets you manage multiple countdowns effortlessly. Start counting down today and never miss a special moment again! terms and conditions: https://onatcipli.dev/terms-conditions privacy policy: https://onatcipli.dev/privacy-policy END USER LICENSE AGREEMENT: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

100 Days Tracker4 screens
Days Countdown4 screens

Verdict

The call

The clearest difference is update cadence: Days Countdown at daily against 100 Days Tracker's every 6 weeks. Days Countdown also leads on iOS requirement (12.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. 100 Days Tracker sells 1 one-off in-app purchase and Days Countdown sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

100 Days Tracker ships an update every 6 weeks, Days Countdown daily. The most recent releases landed on August 2, 2026 and June 4, 2026 respectively.

Scorecard2 real differences Β· 6 level
100 Days Tracker versus Days Countdown: the parameters behind the verdict, then further details
Parameter100 Days TrackerDays Countdown
PriceFreeFree
Positive reviews50.0% of reviewsβ€”
Update frequencyEvery 6 weeksDaily β€” better
AdsNoNo
In-app purchasesYesYes
MonetizationFreeβ€”
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.612.0 β€” better
Further details β€” not scored
Size11 MB123 MB
Age rating4+4+
DeveloperChad GoodyearOnat Cipli

In-app purchases

1 purchases

100 Days Tracker

One-time1
  • Pro Lifetime$6.99
1 purchases

Days Countdown

One-time1
  • Premium Lifetime$9.99

Questions

Is 100 Days Tracker free?
100 Days Tracker is free to download, with in-app purchases available.
Is Days Countdown free?
Days Countdown is free to download, with in-app purchases available.
Do 100 Days Tracker or Days Countdown have ads?
Neither 100 Days Tracker nor Days Countdown shows ads.
Which is updated more often, 100 Days Tracker or Days Countdown?
100 Days Tracker ships an update every 6 weeks, and Days Countdown daily. Most recently, 100 Days Tracker was updated on August 2, 2026 and Days Countdown on June 4, 2026.

Other comparisons