# SmileRetainr vs Smilo

The clearest difference is review sentiment: SmileRetainr at 100% against Smilo's 38%. Smilo's advantage is rating (4.5 vs 3.7) and ratings volume (46 vs 3). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. SmileRetainr sells 4 in-app purchases, starting at $0.99 per month and Smilo sells 6 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Smilo holds the better App Store score, 4.5 against 3.7. That said, the two scores are not equally well evidenced: Smilo has 46 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 100% of SmileRetainr's written reviews are positive against 38% of Smilo's, so the app with the better star average is not the one people write more warmly about.

SmileRetainr ships an update every 2 weeks, Smilo every 3 weeks. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SmileRetainr | Smilo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/smileretainr-retainer-tracker/id6743392986/reviews) | **[4.5 (46 ratings)](https://appshunter.io/ios/app/smilo-aligner-tracker-and-timer/id6761348584/reviews)** |
| Number of ratings | 3 | **46** |
| Positive reviews | **100.0% of reviews** | 37.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Freemium | Freemium |
| Size | 2 MB | 31 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [楚毅 苏](https://appshunter.io/developer/1799476348) | [Nabeel Akhtar Tak](https://appshunter.io/developer/1832775708) |

## What reviewers say

### SmileRetainr

[App page](https://appshunter.io/ios/app/smileretainr-retainer-tracker/id6743392986)

This app helps retainer wearers track their usage and set daily goals. It provides smart reminders to ensure consistent wear and protect orthodontic results. Maintain your smile with this easy-to-use tracking tool.

**Highlights:** Track retainer wear time, Set daily wear goals, Smart wear reminders, View wear history, Safeguard orthodontic results

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SmileRetainr Pro Monthly | $0.99 | per month |
| SmileRetainr Pro Annual | $6.99 | per year |
| SmileRetainr Pro Lifetime | $2.99 | one-time |
| SmileRetainr Pro Lifetime | $9.99 | one-time |


### Smilo

[App page](https://appshunter.io/ios/app/smilo-aligner-tracker-and-timer/id6761348584)

Effortlessly track your clear aligner wear time, manage trays, and monitor your smile's progress. This app offers a guided camera for consistent progress photos and smart reminders tailored to your treatment.

**Highlights:** Wear time tracking with progress ring, Tray management and switch reminders, Guided camera for progress photos, Smart, context-aware reminders, Compliance calendar with streak counter, Home screen widgets for glanceable info, Tray care logging

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smilo Pro Weekly | $4.99 | per 7 days |
| Smilo Pro Monthly | $7.99 | per month |
| Smilo Premium Weekly | $9.99 | per 7 days |
| Smilo Premium Monthly | $19.99 | per month |
| Smilo Pro Yearly | $49.99 | per year |
| Smilo Premium Yearly | $99.99 | per year |


## Frequently asked questions

### Is SmileRetainr free?

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

### Is Smilo free?

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

### Which has better reviews, SmileRetainr or Smilo?

Smilo is rated higher. SmileRetainr averages 3.7 out of 5 from 3 ratings, while Smilo averages 4.5 from 46 ratings.

### Do SmileRetainr or Smilo have ads?

Neither SmileRetainr nor Smilo shows ads.

### Which is updated more often, SmileRetainr or Smilo?

SmileRetainr ships an update every 2 weeks, and Smilo every 3 weeks. Most recently, SmileRetainr was updated on October 20, 2026 and Smilo on October 24, 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.*