# Tray Harder vs Aligner Diary

Tray Harder and Aligner Diary are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Tray Harder sells 1 one-off in-app purchase and Aligner Diary sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 9, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Tray Harder | Aligner Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Size | 55 MB | 47 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bari Halag](https://appshunter.io/developer/6782674186) | [思佳 李](https://appshunter.io/developer/1835312196) |

## What reviewers say

### Tray Harder

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

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

**In-app purchases (1)**

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


### Aligner Diary

[App page](https://appshunter.io/ios/app/aligner-diary/id6802318433)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $0.99 | per month |
| Pro Annual | $3.99 | per year |
| Pro Lifetime | $7.99 | one-time |


## Frequently asked questions

### Is Tray Harder free?

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

### Is Aligner Diary free?

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

### Do Tray Harder or Aligner Diary have ads?

Neither Tray Harder nor Aligner Diary shows ads.

### Which is updated more often, Tray Harder or Aligner Diary?

Tray Harder ships an update weekly, and Aligner Diary weekly. Most recently, Tray Harder was updated on October 9, 2026 and Aligner Diary on October 5, 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.*