# SmileDiary vs BraceTime

The clearest difference is update cadence: SmileDiary at every 5 days against BraceTime's every 3 weeks. On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. SmileDiary sells 3 in-app purchases, starting at $2.99 per month and BraceTime sells 6 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

SmileDiary ships an update every 5 days, BraceTime every 3 weeks. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | SmileDiary | BraceTime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/bracetime-aligner-tracker/id6762070275/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Freemium | Freemium |
| Size | 12 MB | 69 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 4+ | 12+ |
| Developer | [Nanjing Xiaowei Technology Co., Ltd.](https://appshunter.io/developer/1831757763) | [卓学 陈](https://appshunter.io/developer/1892756052) |

## What reviewers say

### SmileDiary

[App page](https://appshunter.io/ios/app/smilediary-aligner-tracker/id6753011249)

This app helps you track your clear aligner treatment privately and securely. It offers a smart wear timer, visual calendar, progress photos, and detailed insights into your compliance, all without collecting your personal data.

**Highlights:** Private data storage, No registration required, Smart wear timer, Visual compliance calendar, Guided progress photos, Detailed treatment insights, Data export functionality

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SmileDiary Pro Monthly | $2.99 | per month |
| SmileDiary Pro Annual | $12.99 | per year |
| SmileDiary Pro Lifetime | $19.99 | one-time |


### BraceTime

[App page](https://appshunter.io/ios/app/bracetime-aligner-tracker/id6762070275)

Track your clear aligner or retainer wear time with a simple timer and photo timeline. Manage tray changes, build consistent habits, and visualize your smile's progress privately on your device.

**Highlights:** Aligner wear time tracking, Tray change management, Progress photo timeline, Daily wear habit building, Gentle reminders, Private, on-device data storage

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BraceTime Pro Monthly | $1.99 | per month |
| Monthly Subscription | $3.99 | per month |
| BraceTime Pro Annual | $14.99 | per year |
| Yearly Subscription | $29.99 | per year |
| BraceTime Pro Lifetime | $24.99 | one-time |
| Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is SmileDiary free?

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

### Is BraceTime free?

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

### Do SmileDiary or BraceTime have ads?

Neither SmileDiary nor BraceTime shows ads.

### Which is updated more often, SmileDiary or BraceTime?

SmileDiary ships an update every 5 days, and BraceTime every 3 weeks. Most recently, SmileDiary was updated on September 22, 2026 and BraceTime on September 10, 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.*