Comparison

ProFocus vs 66 Challenge

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

Head to head
About

ProFocus

Read full description

ProFocus helps you stay off distracting apps—with someone else keeping you accountable. Choose the apps you want to block and set a focus timer. If you need to unlock early, ask someone to approve your request. FOCUS WITH ACCOUNTABILITY Add friends who can help you stick to your plans. Send an unlock request when you need to finish a session early, or text an approval link to someone outside the app. CHOOSE WHAT TO BLOCK Select distracting apps and save lists for studying, working, or time away from your phone. SET YOUR FOCUS TIME Choose how long you want to focus. Your selected apps stay blocked during the session unless an early unlock is approved. BUILD A ROUTINE Schedule focus sessions for the times you want fewer distractions. SEE YOUR PROGRESS Track your focus time, completed sessions, and streaks. TRY PROFOCUS FOR 14 DAYS Start with 14 days of free access, without starting a paid subscription. When your free access ends, choose a monthly or yearly membership to continue. You won't be charged unless you choose to subscribe. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Payment is charged to your Apple Account when you confirm your purchase. Manage or cancel your subscription in your Apple Account settings. Privacy Policy: https://profocus.app/privacy Terms of Use: https://profocus.app/terms

About

66 Challenge

Build lasting habits with a science-backed system designed to guide you through a 66-day journey. Track daily progress, visualize your transformation, and stay motivated with social features and achievements. Transform your life one habit at a time.

Highlights
  • Daily habit tracking
  • Progress visualization
  • Streak protection
  • Social feed and squads
  • Customizable reminders
  • Achievement badges
Features
Read full description

Transform your life one habit at a time with 66 Challenge - the science-backed app that helps you build lasting habits in just 66 days. WHY 66 DAYS? Research shows it takes an average of 66 days to form a new habit. We've built the perfect system to guide you through every single day. KEY FEATURES: - Daily Habit Tracking - Mark your habits complete each day and watch your streak grow - Progress Visualization - See your 66-day journey unfold with beautiful progress tracking - Streak Protection - Stay motivated with streak counts and milestone celebrations - Progress Photos - Capture your transformation with optional daily photos - Friends & Social Feed - Follow friends, celebrate their wins, and stay accountable together - Squads - Join or create groups to challenge habits together - Achievements - Unlock badges as you hit milestones on your journey - Reminders - Never miss a day with customizable notifications BECOME UNDENIABLE Whether you want to exercise daily, read more, meditate, or build any positive habit - 66 Challenge gives you the structure, motivation, and community to make it stick. Start your 66-day transformation today. --- Terms of Use: https://spiffy-muskmelon-f8f.notion.site/Terms-of-Service-66-Challenge-2f456f682ccc8026ac42f9567c526f57 Privacy Policy: https://spiffy-muskmelon-f8f.notion.site/Privacy-Policy-66-Challenge-1e956f682ccc80f18d6ad0a347d8707f

Screenshots

ProFocus4 screens
66 Challenge4 screens

Verdict

The call

The clearest difference is update cadence: 66 Challenge at every 5 days against ProFocus's monthly. 66 Challenge also leads on iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases 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. ProFocus sells 2 in-app purchases, starting at $4.99 per month and 66 Challenge sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ProFocus ships an update monthly, 66 Challenge every 5 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 7 level
ProFocus versus 66 Challenge: the parameters behind the verdict, then further details
ParameterProFocus66 Challenge
PriceFreeFree
Rating—5.0 (5 ratings) — better
Number of ratings—5 — better
Update frequencyMonthlyEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size29 MB18 MB
Age rating12+12+
DeveloperSaafi Studios LLCMoad Ghajjate El Fal

In-app purchases

2 purchases

ProFocus

Subscriptions2
  • ProFocus Premium7 Days trial$4.991 Month
  • Profocus Premium7 Days trial$39.991 Year
3 purchases

66 Challenge

Subscriptions2
  • Pro Monthly7 Days trial$3.991 Month
  • Pro Annual7 Days trial$29.991 Year
One-time1
  • Pro Lifetime$59.99

Questions

Is ProFocus free?
ProFocus is free to download, with in-app purchases available.
Is 66 Challenge free?
66 Challenge is free to download, with in-app purchases available.
Do ProFocus or 66 Challenge have ads?
Neither ProFocus nor 66 Challenge shows ads.
Which is updated more often, ProFocus or 66 Challenge?
ProFocus ships an update monthly, and 66 Challenge every 5 days. Most recently, ProFocus was updated on October 28, 2026 and 66 Challenge on October 31, 2026.

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