# 美齐日记 vs TeethPath

The clearest difference is in-app purchases: 美齐日记 at none against TeethPath's 2. 美齐日记 also leads on iOS requirement (9.0 vs 26.0). TeethPath's advantage is update cadence (every 2 weeks vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. TeethPath sells 2 in-app purchases, starting at $1.99 per month. 美齐日记 asks for nothing beyond the download.

美齐日记 ships an update every 5 months, TeethPath every 2 weeks. The most recent releases landed on September 20, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | 美齐日记 | TeethPath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/teethpath/id6740765612/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 74 MB | 22 MB |
| Requires iOS | **9.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [杭州美齐科技有限公司](https://appshunter.io/developer/1340901249) | [建卓 叶](https://appshunter.io/developer/1725409773) |

## What reviewers say

### 美齐日记

[App page](https://appshunter.io/ios/app/id1340901250)

**Features:** macOS Compatibility

**In-app purchases:** none


### TeethPath

[App page](https://appshunter.io/ios/app/teethpath/id6740765612)

This app helps users manage their orthodontic treatment by tracking aligner removal times, setting personalized plans, and providing timely replacement reminders. It facilitates scheduling and goal setting for a smoother treatment process.

**Highlights:** Aligner removal timer, Personalized alignment plan setting, Intelligent replacement reminders, Orthodontic schedule planning, Local data storage

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TeethPath Pro - Monthly | $1.99 | per month |
| TeethPath Pro - Yearly | $9.99 | per year |


## Frequently asked questions

### Is 美齐日记 free?

美齐日记 is free to download, with no in-app purchases.

### Is TeethPath free?

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

### Do 美齐日记 or TeethPath have ads?

Neither 美齐日记 nor TeethPath shows ads.

### Which is updated more often, 美齐日记 or TeethPath?

美齐日记 ships an update every 5 months, and TeethPath every 2 weeks. Most recently, 美齐日记 was updated on September 20, 2026 and TeethPath on September 21, 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.*