# Ripples vs 66 Challenge

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.

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.

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.

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

## The numbers

| Metric | Ripples | 66 Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (235 ratings)](https://appshunter.io/ios/app/ripples-habit-tracker/id6502667826/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/66-challenge/id6758270405/reviews)** |
| Number of ratings | **235** | 5 |
| Positive reviews | 92.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 43 MB | 18 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Mykola Harmash](https://appshunter.io/developer/1746395857) | [Moad Ghajjate El Fal](https://appshunter.io/developer/1871890791) |

## What reviewers say

### Ripples

[App page](https://appshunter.io/ios/app/ripples-habit-tracker/id6502667826)

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:** Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Monthly | $2.99 | per month |
| Plus Yearly | $9.99 | per year |
| Powerpack | $9.99 | one-time |
| Powerpack Family | $17.99 | one-time |
| Ripples Plus Lifetime | $24.99 | one-time |

**What reviewers like**

- ✨ Minimalist and clean UI design
- 🎨 Beautiful animations and fluid interactions
- 📱 Excellent widget implementation
- 🚀 Simple and intuitive to use
- 💰 One-time purchase (no subscription)

**What reviewers complain about**

- 🔔 Unreliable notification system
- 🐛 UI bugs affecting usability
- 💳 Purchase restoration issues
- 🔐 Lifetime purchase unlock problems
- ⚠️ No developer response to support issues

**Reported bugs**

- 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**

- Check-in reminders/notifications
- Apple Watch app and complications
- iCloud sync across devices
- Weekly and monthly habit tracking
- Filtering by categories or tags


### 66 Challenge

[App page](https://appshunter.io/ios/app/66-challenge/id6758270405)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $3.99 | per month |
| Pro Annual | $29.99 | per year |
| Pro Lifetime | $59.99 | one-time |


## Frequently asked 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.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*