# AlignerTracker vs SmileProgress

The clearest difference is update cadence: AlignerTracker at every 8 days against SmileProgress's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AlignerTracker sells 1 in-app purchase, starting at $1.99 per month and SmileProgress sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

AlignerTracker ships an update every 8 days, SmileProgress every 4 weeks. The most recent releases landed on September 15, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | AlignerTracker | SmileProgress |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 4 weeks |
| Size | 14 MB | 37 MB |
| Requires iOS | 18.6 | **17.6** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TN-House](https://appshunter.io/developer/1886995196) | [Naoki MORI](https://appshunter.io/developer/1792772188) |

## What reviewers say

### AlignerTracker

[App page](https://appshunter.io/ios/app/alignertracker-all-in-one/id6766072961)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $1.99 | per month |


### SmileProgress

[App page](https://appshunter.io/ios/app/smileprogress/id6780383136)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Keep Recording (one-time) | $0.99 | one-time |


## Frequently asked questions

### Is AlignerTracker free?

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

### Is SmileProgress free?

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

### Do AlignerTracker or SmileProgress have ads?

Neither AlignerTracker nor SmileProgress shows ads.

### Which is updated more often, AlignerTracker or SmileProgress?

AlignerTracker ships an update every 8 days, and SmileProgress every 4 weeks. Most recently, AlignerTracker was updated on September 15, 2026 and SmileProgress on August 26, 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.*