# Retainly vs TrayTime

The clearest difference is ads: Retainly at none against TrayTime's shown. Retainly also leads on update cadence (weekly vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Retainly sells 1 one-off in-app purchase and TrayTime sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Retainly ships an update weekly, TrayTime every 3 weeks. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Retainly | TrayTime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/traytime-aligner-tracker/id6792600059/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 64 MB | 99 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Glenn Francis](https://appshunter.io/developer/1875693789) | [SEONYONG LEE](https://appshunter.io/developer/6775892940) |

## What reviewers say

### Retainly

[App page](https://appshunter.io/ios/app/retainly-retainer-tracker/id6773165727)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $9.99 | one-time |


### 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 Retainly free?

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

### Is TrayTime free?

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

### Do Retainly or TrayTime have ads?

TrayTime shows ads; Retainly does not.

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

Retainly ships an update weekly, and TrayTime every 3 weeks. Most recently, Retainly was updated on October 15, 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.*