# Nine vs TrayTime

The clearest difference is in-app purchases: Nine at none against TrayTime's 1. Nine also leads on ads (none vs shown). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. TrayTime sells 1 one-off in-app purchase. Nine asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Nine against 5.0 for TrayTime. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Nine ships an update monthly, TrayTime every 3 weeks. The most recent releases landed on September 28, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Nine | TrayTime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/nine/id6741468151/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/traytime-aligner-tracker/id6792600059/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 96 MB | 99 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Al-sahm Al-tasii](https://appshunter.io/developer/1794289134) | [SEONYONG LEE](https://appshunter.io/developer/6775892940) |

## What reviewers say

### Nine

[App page](https://appshunter.io/ios/app/nine/id6741468151)

This app simplifies dental care by connecting users with dentists and offering flexible solutions for oral health needs. It emphasizes transparency, affordability, and accessibility for a seamless experience.

**Highlights:** Connect with dentists, Affordable dental solutions, Preventive care options, Transparent dental services, Accessible oral health journey

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### TrayTime

[App page](https://appshunter.io/ios/app/traytime-aligner-tracker/id6792600059)

Track your clear aligner wear time with a simple tap system. Monitor daily progress, receive reminders for tray changes, and capture progress photos privately. Works with any aligner brand without requiring an account.

**Highlights:** Daily wear time tracking, Tray change reminders, Out-of-case reminders, Progress photo diary, Works with any aligner brand, No account required

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TrayTime Pro | $14.99 | one-time |


## Frequently asked questions

### Is Nine free?

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

### Is TrayTime free?

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

### Which has better reviews, Nine or TrayTime?

Nine and TrayTime are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Nine or TrayTime have ads?

TrayTime shows ads; Nine does not.

### Which is updated more often, Nine or TrayTime?

Nine ships an update monthly, and TrayTime every 3 weeks. Most recently, Nine was updated on September 28, 2026 and TrayTime on October 14, 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.*