# InviSmile vs Tray Harder

The clearest difference is rating: Tray Harder at 5.0 against InviSmile's 3.7. InviSmile's advantage is in-app purchases (none vs 1) and ratings volume (3 vs 1). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Tray Harder sells 1 one-off in-app purchase. InviSmile asks for nothing beyond the download.

Tray Harder holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

## The numbers

| Metric | InviSmile | Tray Harder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/invismile/id6765974305/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tray-harder-aligner-tracker/id6782674184/reviews)** |
| Number of ratings | **3** | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | Free | Free |
| Size | 321 MB | 27 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [NIKHIL CHOWDARY NETTEM](https://appshunter.io/developer/1896147398) | [Bari Halag](https://appshunter.io/developer/6782674186) |

## What reviewers say

### InviSmile

[App page](https://appshunter.io/ios/app/invismile/id6765974305)

This app helps you meticulously track the wear time of your clear dental aligners. It features a smart timer, progress visualization, and reminders to ensure you stay on schedule with your treatment. Designed for privacy, it stores data locally and requires no account.

**Highlights:** One-tap wear timer, Live countdown for daily goals, Progress rings visualization, Apple Watch companion app, Home and Lock Screen widgets, Tray management and reminders, Local data storage for privacy

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

**In-app purchases:** none


### Tray Harder

[App page](https://appshunter.io/ios/app/tray-harder-aligner-tracker/id6782674184)

Track your clear aligner wear time and stay on schedule with this privacy-focused app. It helps you meet daily wear goals, monitor tray changes, and capture your smile's transformation with progress photos. Gentle reminders and appointment logging ensure you stay on track with your orthodontic treatment.

**Highlights:** Track aligner wear time, Monitor tray change schedule, Progress photo capture, Gentle, customizable reminders, Appointment logging, Privacy-focused, no cloud storage

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tray Harder Pro | $4.99 | one-time |


## Frequently asked questions

### Is InviSmile free?

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

### Is Tray Harder free?

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

### Which has better reviews, InviSmile or Tray Harder?

Tray Harder is rated higher. InviSmile averages 3.7 out of 5 from 3 ratings, while Tray Harder averages 5.0 from 1 ratings.

### Do InviSmile or Tray Harder have ads?

Neither InviSmile nor Tray Harder shows ads.

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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.*