# Aligner Smile Tracker vs Cupla

The clearest difference is rating: Cupla at 4.7 against Aligner Smile Tracker's 3.0. Cupla also leads on review sentiment (73% vs 44%) and ratings volume (2.3K vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Aligner Smile Tracker sells 5 one-off in-app purchases and Cupla sells 10 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Cupla holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Cupla has 2.3K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 44% of Aligner Smile Tracker's written reviews are positive against 73% of Cupla's.

Aligner Smile Tracker ships an update every 6 weeks, Cupla every 9 days. The most recent releases landed on September 22, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Aligner Smile Tracker | Cupla |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/aligner-smile-tracker/id1535341862/reviews) | **[4.7 (2.3K ratings)](https://appshunter.io/ios/app/cupla-couples-shared-calendar/id1557764033/reviews)** |
| Number of ratings | 2 | **2.3K** |
| Positive reviews | 43.8% of reviews | **73.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 74 MB | 251 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Pocket Pixels LTD](https://appshunter.io/developer/479858885) | [Cupla Limited](https://appshunter.io/developer/1557764035) |

## 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 |


### Cupla

[App page](https://appshunter.io/ios/app/cupla-couples-shared-calendar/id1557764033)

This app helps couples organize their lives and strengthen their relationship by syncing calendars, managing shared tasks, and planning future activities. It aims to reduce stress and increase quality time spent together.

**Highlights:** Shared calendar syncing, Shared to-do lists and tasks, Wishlist creation and sharing, Date night planning and reminders, AI-powered date ideas, Cross-platform compatibility

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Monthly | $4.99 | per month |
| Monthly | $5.99 | per month |
| Monthly | $5.99 | per month |
| Monthly | $7.99 | per month |
| Yearly | $34.99 | per year |
| Cupla Plus | $39.99 | per year |
| Yearly | $44.99 | per year |
| Cupla Plus | $44.99 | per year |
| Yearly | $59.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Helpful for organizing schedules
- 💡 Great shared calendar features
- 👍 Useful for couples and busy lives
- 👍 Intuitive interface

**What reviewers complain about**

- 🐛 Calendar sync issues
- 🐛 Buggy and glitchy at times
- 🔒 Paywall for full functionality
- 🐛 Inconsistent performance
- 🐛 Inability to delete old synced events

**Reported bugs**

- Notifications not working as expected
- Calendar dates and events not displaying correctly
- Syncing issues between partner calendars
- App freezing or crashing

**Requested features**

- More customization options (colors, widgets, etc.)
- Ability to add more than 3 calendars (e.g. for kids)
- Improved calendar view and navigation
- Integration with other apps and calendars
- Chat or notes feature for events


## Frequently asked questions

### Is Aligner Smile Tracker free?

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

### Is Cupla free?

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

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

Cupla is rated higher. Aligner Smile Tracker averages 3.0 out of 5 from 2 ratings, while Cupla averages 4.7 from 2.3K ratings.

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

Neither Aligner Smile Tracker nor Cupla shows ads.

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

Aligner Smile Tracker ships an update every 6 weeks, and Cupla every 9 days. Most recently, Aligner Smile Tracker was updated on September 22, 2026 and Cupla 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.*