Comparison

Hundred Day Challenge vs Just Commit

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

Head to head
About

Hundred Day Challenge

This app helps you build lasting habits and achieve goals through consistent, small daily actions over 100 days. Track multiple challenges simultaneously, visualize your progress, and stay motivated with visual cues and milestone rewards.

Highlights
  • Multiple challenges at once
  • Daily completion tracking
  • Progress visualization
  • Motivating main screen
  • Icon selection per challenge
  • Progress rewards
Features
Read full description

What is the 100 Day Challenge? The 100 Day Challenge helps you work consistently toward your goals and build real habits. Instead of big leaps, it's about small, daily steps that add up over 100 days and bring lasting change. Key features: • Multiple challenges at once: Start and manage different 100-day challenges in parallel (e.g., reading, sports, learning, meditation). • Daily completion: Mark your progress with just one tap – “Today done” keeps your streak alive. • Visualization: See your progress at a glance: expanded view with 100 days, checked days in green with check marks. • Motivating main screen: Personal greeting, overview of all active challenges, progress indicators, and quick selection. • Icon selection per challenge: Choose a suitable icon for each challenge. • Progress rewards: Visualize milestones and stay in the flow. • Pro version (in-app purchase): Unlock all features, remove restrictions, and get additional personalization options. Why does it work? Because small, daily actions done consistently are more effective than sporadic motivation. 100 days is short enough to stick with and long enough to form real habits. Social accountability – use it to your advantage: Share the start of your challenge on social media or with friends. Post at the beginning and after important milestones – this creates gentle social pressure that motivates you to stick with it. Others know that you have started, and you don't want to break the streak. Privacy & Sync: All data is private and stored securely in your iCloud account. There are no central servers; your challenge data belongs only to you. Tips for maximum impact: • Choose clear, specific tasks (e.g., “read for 10 minutes” instead of “read more”). • Use multiple parallel challenges, but don't overload yourself – focus helps. • Check your streak regularly to avoid setbacks and maintain motivation. Upgrade to the full version: Unlock the full power: unlimited challenges and no restrictions on the number of days. Support & feedback: Do you have any ideas or need help? Write to us directly via the app or visit our support page (link in the app). Your feedback makes the challenge better.

About

Just Commit

Features
Read full description

Set a goal, commit each day, and watch your streak grow. Miss a day? A built-in one-day freeze keeps your momentum alive — because real life happens. Every day you keep builds a chain you won't want to break. WHY JUST COMMIT • Streaks that motivate — build consecutive days and see your progress at a glance • Automatic streak freeze — one missed day won't wipe out weeks of work • Photo proof — snap a picture to prove each day and build a visual history • Calendar heatmap — visualize your journey and celebrate your perfect days • Daily reminders — a gentle nudge at the time you choose • Achievements & stats — track your best streak, completion rate, and milestones • Goal or endless — commit to 7, 21, 30, or 66 days, or build a lifelong practice PRIVATE BY DESIGN No account. No sign-up. No cloud. Your data never leaves your device — your habits are yours alone. BEAUTIFULLY SIMPLE A calm, focused design that gets out of your way. Open the app, commit, and go. Whether you're building a morning routine, drinking more water, reading daily, or finally starting that workout habit, Just Commit helps you stay consistent — one day at a time. Download Just Commit and start your streak today.

Screenshots

Hundred Day Challenge4 screens
Just Commit4 screens

Verdict

The call

The clearest difference is in-app purchases: Just Commit at none against Hundred Day Challenge's 1. Just Commit also leads on iOS requirement (15.1 vs 18.5). On price, update cadence, ads and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Hundred Day Challenge sells 1 one-off in-app purchase. Just Commit asks for nothing beyond the download.

UpkeepUpdate frequency

Hundred Day Challenge ships an update every 9 months, Just Commit every 5 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 7 level
Hundred Day Challenge versus Just Commit: the parameters behind the verdict, then further details
ParameterHundred Day ChallengeJust Commit
PriceFreeFree
Rating4.7 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 9 monthsEvery 5 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.515.1 — better
Further details — not scored
Size2 MB40 MB
Age rating4+4+
DeveloperUrs JaeggiPETAR PETROV SYULEYMEZYAN

In-app purchases

1 purchases

Hundred Day Challenge

One-time1
  • Full Version$0.99
None

Just Commit

No in-app purchases

Questions

Is Hundred Day Challenge free?
Hundred Day Challenge is free to download, with in-app purchases available.
Is Just Commit free?
Just Commit is free to download, with no in-app purchases.
Do Hundred Day Challenge or Just Commit have ads?
Neither Hundred Day Challenge nor Just Commit shows ads.
Which is updated more often, Hundred Day Challenge or Just Commit?
Hundred Day Challenge ships an update every 9 months, and Just Commit every 5 months. Most recently, Hundred Day Challenge was updated on October 28, 2026 and Just Commit on October 24, 2026.

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