# SmileTrack‐Invisalign&Aligner vs Aligner Tracker

The clearest difference is price: SmileTrack‐Invisalign&Aligner at Free against Aligner Tracker's $2.99. SmileTrack‐Invisalign&Aligner also leads on device support (3 vs 1). Aligner Tracker's advantage is ads (none vs shown) and update cadence (every 4 days vs monthly). On in-app purchases and iOS requirement there is nothing between them.

SmileTrack‐Invisalign&Aligner is free to download; Aligner Tracker costs $2.99 up front. SmileTrack‐Invisalign&Aligner sells 5 in-app purchases, starting at $3.00 per month and Aligner Tracker sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

SmileTrack‐Invisalign&Aligner ships an update monthly, Aligner Tracker every 4 days. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | SmileTrack‐Invisalign&Aligner | Aligner Tracker |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/aligner-tracker-alignerdiary/id6811375012/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 22 MB | 41 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mayu Nishimoto](https://appshunter.io/developer/1888340676) | [智寅 丁](https://appshunter.io/developer/6811367430) |

## What reviewers say

### SmileTrack‐Invisalign&Aligner

[App page](https://appshunter.io/ios/app/smiletrackinvisalign-and-aligner/id6761232027)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン 月額 | $3.00 | per month |
| プレミアムプラン 年額 | $30.00 | per year |
| コーヒーを送る | $1.00 | one-time |
| 広告を削除 | $1.00 | one-time |
| プレミアムプラン 買い切り | $60.00 | one-time |


### Aligner Tracker

[App page](https://appshunter.io/ios/app/aligner-tracker-alignerdiary/id6811375012)

Track your clear aligner wear time, schedule changes, and store progress photos. This app offers local-first data storage with optional private iCloud backup and customizable themes. It provides reminders and home screen widgets for easy access to your treatment information.

**Highlights:** Record aligner wear with one tap, Tray-by-tray calendar and timeline, Private photo record keeping, Customizable reminders and widgets, Local-first data storage, Optional private iCloud backup, Multiple visual themes and languages

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 曲奇 | $0.99 | one-time |
| 美式 | $1.99 | one-time |
| 拿铁 | $2.99 | one-time |
| SOE | $3.99 | one-time |


## Frequently asked questions

### Is SmileTrack‐Invisalign&Aligner free?

SmileTrack‐Invisalign&Aligner is free to download, with in-app purchases available.

### Is Aligner Tracker free?

Aligner Tracker costs $2.99, and also offers in-app purchases.

### Do SmileTrack‐Invisalign&Aligner or Aligner Tracker have ads?

SmileTrack‐Invisalign&Aligner shows ads; Aligner Tracker does not.

### Which is updated more often, SmileTrack‐Invisalign&Aligner or Aligner Tracker?

SmileTrack‐Invisalign&Aligner ships an update monthly, and Aligner Tracker every 4 days. Most recently, SmileTrack‐Invisalign&Aligner was updated on October 6, 2026 and Aligner Tracker on October 14, 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.*