# Smilo vs Alinear

The clearest difference is update cadence: Alinear at every 3 days against Smilo's every 3 weeks. Smilo's advantage is iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Smilo sells 6 in-app purchases, starting at $4.99 per 7 days and Alinear sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Smilo ships an update every 3 weeks, Alinear every 3 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Smilo | Alinear |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (46 ratings)](https://appshunter.io/ios/app/smilo-aligner-tracker-and-timer/id6761348584/reviews)** | — |
| Number of ratings | **46** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Freemium | — |
| Size | 31 MB | 33 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 12+ |
| Developer | [Nabeel Akhtar Tak](https://appshunter.io/developer/1832775708) | [Anatolii Nehelia](https://appshunter.io/developer/1863414185) |

## What reviewers say

### 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 |


### Alinear

[App page](https://appshunter.io/ios/app/alinear-aligner-tracker/id6762312765)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $19.99 | per year |
| Premium Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Smilo free?

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

### Is Alinear free?

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

### Do Smilo or Alinear have ads?

Neither Smilo nor Alinear shows ads.

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

Smilo ships an update every 3 weeks, and Alinear every 3 days. Most recently, Smilo was updated on October 24, 2026 and Alinear on October 28, 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.*