# Aligner Tracker App vs Fit4Blast

The clearest difference is update cadence: Aligner Tracker App at every 3 weeks against Fit4Blast's every 7 months. Aligner Tracker App also leads on iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Aligner Tracker App ships an update every 3 weeks, Fit4Blast every 7 months. The most recent releases landed on October 4, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | Aligner Tracker App | Fit4Blast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (181 ratings)](https://appshunter.io/ios/app/aligner-tracker-app/id6443588017/reviews)** | — |
| Number of ratings | **181** | — |
| Positive reviews | 68.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 7 months |
| Monetization | Free | — |
| Size | 167 MB | 55 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [ALIGNER TRACKER (PRIVATE) LIMITED](https://appshunter.io/developer/1715346902) | [Momence, Inc.](https://appshunter.io/developer/1577856011) |

## What reviewers say

### Aligner Tracker App

[App page](https://appshunter.io/ios/app/aligner-tracker-app/id6443588017)

Monitor your clear aligner treatment progress with a 3D model viewer and a progress tracker. Upload photos, track wear time, and receive reminders for aligner changes. Communicate with your provider and view your treatment timeline.

**Highlights:** 3D teeth model viewer (before/after), Treatment progress tracking, Photo gallery for aligner stages, Calendar for aligner changes, Wear time reminders, In-app communication

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Great aligners at affordable cost
- 👍 Convenient and helpful app
- 👍 Excellent customer service and support
- 👍 Easy and smooth impression process

**What reviewers complain about**

- 🐛 App is extremely slow and laggy
- 🐛 App is not user-friendly and has poor design
- 🐛 Delayed and poor communication
- 🐛 Aligners did not fix teeth as promised
- 🐛 Difficult to get refunds or resolve issues

**Reported bugs**

- App login and password reset issues
- Inability to track progress and upload photos
- Misalignment between app and actual treatment

**Requested features**

- Improve app performance and stability
- Enhance user interface and experience
- Provide better communication and transparency
- Streamline the refund and issue resolution process


### Fit4Blast

[App page](https://appshunter.io/ios/app/fit4blast/id6757719730)

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

**In-app purchases:** none


## Frequently asked questions

### Is Aligner Tracker App free?

Aligner Tracker App is free to download, with no in-app purchases.

### Is Fit4Blast free?

Fit4Blast is free to download, with no in-app purchases.

### Do Aligner Tracker App or Fit4Blast have ads?

Neither Aligner Tracker App nor Fit4Blast shows ads.

### Which is updated more often, Aligner Tracker App or Fit4Blast?

Aligner Tracker App ships an update every 3 weeks, and Fit4Blast every 7 months. Most recently, Aligner Tracker App was updated on October 4, 2026 and Fit4Blast on September 2, 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.*