Comparison

Ripples 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

Ripples

This app helps you build and maintain new habits and achieve your goals. It offers a visual calendar grid to track your progress, detailed metrics, and the ability to log specific amounts for each action. You can also add notes, use Siri shortcuts, and view your progress with widgets.

Highlights
  • Visual calendar grid progress tracking
  • Vital metrics and analytics
  • Track specific amounts and custom units
  • Notes and journal entries
  • Siri shortcuts and automation
  • Interactive widgets
Features
Read full description

Build habits with a visual tracker that makes daily progress easy to see—and easier to continue. Ripples turns every check-in into a clear, color-coded picture of your routines, goals, and consistency. SEE THE PATTERN Use flexible calendar grids to spot streaks, gaps, and trends at a glance. Organize habits into dashboards and create a view that fits your routine. TRACK MORE THAN CHECKMARKS Record simple check-ins or quantities such as pages, minutes, water, distance, money, and custom units. Add a note to any entry and review your history in the Journal. STAY CONSISTENT WITH LESS FRICTION Set multiple reminders, check in from interactive widgets, and build Shortcuts or Siri automations for the routines you repeat every day. UNDERSTAND YOUR PROGRESS See current and best streaks, consistency metrics, totals, averages, and daily, weekly, monthly, and yearly charts. Compare years to understand what changed and where you are improving. PRIVATE BY DESIGN Your habits and goals remain visible only to you and sync through end-to-end encrypted iCloud. Start with one habit. Watch the pattern grow. Privacy Policy: https://www.ripples.day/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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

Ripples4 screens
66 Challenge4 screens

Verdict

The call

The clearest difference is ratings volume: Ripples at 235 against 66 Challenge's 5. 66 Challenge's advantage is rating (5.0 vs 4.7) and update cadence (every 5 days vs fortnightly). On price, ads, in-app purchases and monetization model 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. Ripples sells 5 in-app purchases, starting at $2.99 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.

ReceptionRating · Positive reviews · Number of ratings

66 Challenge holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Ripples has 235 ratings behind it against 5, so its average is the more settled of the two.

UpkeepUpdate frequency

Ripples ships an update fortnightly, 66 Challenge every 5 days. The most recent releases landed on October 25, 2026 and October 5, 2026 respectively.

Scorecard5 real differences · 5 level
Ripples versus 66 Challenge: the parameters behind the verdict, then further details
ParameterRipples66 Challenge
PriceFreeFree
Rating4.7 (235 ratings)5.0 (5 ratings) — better
Positive reviews92.8% of reviews—
Number of ratings235 — better5
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.613.0 — better
Further details — not scored
Size43 MB18 MB
Age rating4+12+
DeveloperMykola HarmashMoad Ghajjate El Fal

Customer experience

Ripples

All ratings235 ratings
Positive93.6%
Neutral1.3%
Negative5.1%
Written reviews138 reviews
Positive92.8%
Neutral2.2%
Negative5.1%

66 Challenge

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Ripples

Reported bugs

5 issues
  • Notifications not working reliably
  • UI bugs causing app to become unusable
  • Restore purchases not functioning
  • Pro features not unlocking after purchase
  • Lifetime purchase redemption not working

Requested features

12 requests
  • Check-in reminders/notifications
  • Apple Watch app and complications
  • iCloud sync across devices
  • Weekly and monthly habit tracking
  • Filtering by categories or tags
Show 7 more
  • Smaller board sizes for better screen visibility
  • Easier bulk check-in for past dates
  • Notes field for individual check-ins
  • Habit reordering functionality
  • Compact main menu view
  • Track amounts with custom units (e.g., pages read)
  • Square widgets

66 Challenge

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Ripples

Subscriptions2
  • Plus Monthly$2.991 Month
  • Plus Yearly$9.991 Year
One-time3
  • Powerpack$9.99
  • Powerpack Family$17.99
  • Ripples Plus Lifetime$24.99
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 Ripples free?
Ripples is free to download, with in-app purchases available.
Is 66 Challenge free?
66 Challenge is free to download, with in-app purchases available.
Which has better reviews, Ripples or 66 Challenge?
66 Challenge is rated higher. Ripples averages 4.7 out of 5 from 235 ratings, while 66 Challenge averages 5.0 from 5 ratings.
Do Ripples or 66 Challenge have ads?
Neither Ripples nor 66 Challenge shows ads.
Which is updated more often, Ripples or 66 Challenge?
Ripples ships an update fortnightly, and 66 Challenge every 5 days. Most recently, Ripples was updated on October 25, 2026 and 66 Challenge on October 5, 2026.

Other comparisons