# TrayBuddy vs Aligner Diary

The clearest difference is device support: Aligner Diary at 3 against TrayBuddy's 1. Aligner Diary also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. TrayBuddy sells 2 in-app purchases, starting at $9.99 per year 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.

TrayBuddy ships an update every 6 days, Aligner Diary weekly. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | TrayBuddy | Aligner Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/traybuddy/id6761814291/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 90.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | Freemium | — |
| Size | 32 MB | 47 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [五花八萌(广州)网络科技有限公司](https://appshunter.io/developer/1891617621) | [思佳 李](https://appshunter.io/developer/1835312196) |

## What reviewers say

### TrayBuddy

[App page](https://appshunter.io/ios/app/traybuddy/id6761814291)

This app helps users track their clear aligner treatment, including wear time, progress, and expenses. It offers intelligent reminders for aligner changes and dental appointments, along with data analytics to optimize your treatment plan. Securely document your smile's transformation with an encrypted gallery.

**Highlights:** Precision wear-time tracking, Intelligent calendar reminders, Multi-dimensional data analytics, Expense analysis and management, Flexible aligner planning, Smart Chewie timer, Encrypted smile gallery

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Yearly Premium | $9.99 | per year |
| Pro Lifetime | $19.99 | 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 TrayBuddy free?

TrayBuddy 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 TrayBuddy or Aligner Diary have ads?

Neither TrayBuddy nor Aligner Diary shows ads.

### Which is updated more often, TrayBuddy or Aligner Diary?

TrayBuddy ships an update every 6 days, and Aligner Diary weekly. Most recently, TrayBuddy was updated on October 7, 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.*