# Aligner Smile Tracker vs Harmony

The clearest difference is rating: Harmony at 4.7 against Aligner Smile Tracker's 3.0. Harmony also leads on update cadence (every 6 days vs every 6 weeks) and ratings volume (9.9K vs 2). Aligner Smile Tracker's advantage is ads (none vs shown) and review sentiment (44% vs 36%). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Aligner Smile Tracker sells 5 one-off in-app purchases and Harmony sells 13 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Harmony holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Harmony has 9.9K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 44% of Aligner Smile Tracker's written reviews are positive against 36% of Harmony's, so the app with the better star average is not the one people write more warmly about.

Aligner Smile Tracker ships an update every 6 weeks, Harmony every 6 days. The most recent releases landed on September 22, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Aligner Smile Tracker | Harmony |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/aligner-smile-tracker/id1535341862/reviews) | **[4.7 (9.9K ratings)](https://appshunter.io/ios/app/harmony-cycle-syncing-period/id6736703227/reviews)** |
| Number of ratings | 2 | **9.9K** |
| Positive reviews | **43.8% of reviews** | 35.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 74 MB | 179 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Pocket Pixels LTD](https://appshunter.io/developer/479858885) | [Rocapine](https://appshunter.io/developer/1755706866) |

## What reviewers say

### Aligner Smile Tracker

[App page](https://appshunter.io/ios/app/aligner-smile-tracker/id1535341862)

This app helps users stay consistent with their orthodontic aligner treatment. It tracks wear time, monitors progress with photos, and sends helpful reminders to ensure users achieve their desired smile.

**Highlights:** Track aligner wear time, Monitor progress photos, Set wear time reminders, Receive aligner change notifications, Create smile transformation videos, Log daily aligner usage

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Adverts | $1.99 | one-time |
| 3 Credits | $2.99 | one-time |
| 10 Credits | $8.99 | one-time |
| 25 Credits | $19.99 | one-time |
| Smile Tracker Lifetime | $29.99 | one-time |


### Harmony

[App page](https://appshunter.io/ios/app/harmony-cycle-syncing-period/id6736703227)

This app helps you understand and sync your lifestyle with your natural body rhythms. It offers personalized guidance for energy, meals, movement, and mindset based on your cycle phase. It also includes smart tracking, daily insights, and an AI assistant for daily organization and self-awareness.

**Highlights:** Cycle Syncing Guidance, Smart Cycle Tracking, Daily Insights & Rituals, AI Lifestyle Assistant, Partner Connection, Privacy-Focused Data

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription | $4.99 | per 7 days |
| Harmony Monthly Plan | $9.99 | per month |
| Monthly Subscription | $14.99 | per month |
| Harmony Premium Pan | $14.99 | per month |
| Harmony Yearly Plan | $34.99 | per year |
| Yearly Premium | $34.99 | per year |
| Harmony Yearly Plan | $34.99 | per year |
| Harmony Premium | $39.99 | per 3 months |
| Premium Subscription | $39.99 | per 6 months |
| Yearly Subscription | $49.99 | per year |
| Yearly Subscription | $59.99 | per year |
| Harmony Yearly Plan | $79.99 | per year |
| Harmony Yearly Plan | $89.99 | per year |

**What reviewers like**

- 👍 Empowering experience
- 🚀 Easy to use
- 💡 Personalized insights
- 👍 Helpful for managing cycle
- 👍 Informative and useful

**What reviewers complain about**

- 🐛 Inaccurate calendar and period tracking
- 💰 Paid subscription required
- 🔧 Needs more customization options
- 👎 Issues with selecting period dates

**Reported bugs**

- Calendar issues with incorrect period dates
- Inability to select accurate period dates

**Requested features**

- More community features
- Longer meditation exercises
- Additional recipes and meal plans


## Frequently asked questions

### Is Aligner Smile Tracker free?

Aligner Smile Tracker is free to download, with in-app purchases available.

### Is Harmony free?

Harmony is free to download, with in-app purchases available.

### Which has better reviews, Aligner Smile Tracker or Harmony?

Harmony is rated higher. Aligner Smile Tracker averages 3.0 out of 5 from 2 ratings, while Harmony averages 4.7 from 9.9K ratings.

### Do Aligner Smile Tracker or Harmony have ads?

Harmony shows ads; Aligner Smile Tracker does not.

### Which is updated more often, Aligner Smile Tracker or Harmony?

Aligner Smile Tracker ships an update every 6 weeks, and Harmony every 6 days. Most recently, Aligner Smile Tracker was updated on September 22, 2026 and Harmony on September 25, 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.*