# Terna vs Smile Brush

The clearest difference is update cadence: Smile Brush at weekly against Terna's every 5 weeks. Terna's advantage is iOS requirement (15.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Terna ships an update every 5 weeks, Smile Brush weekly. The most recent releases landed on May 13, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Terna | Smile Brush |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Size | 432 MB | 16 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TERNA RETE ITALIA SPA](https://appshunter.io/developer/1458535497) | [Simon Bevilacqua](https://appshunter.io/developer/1894495327) |

## What reviewers say

### Terna

[App page](https://appshunter.io/ios/app/terna/id1458535498)

**Features:** macOS Compatibility

**In-app purchases:** none


### Smile Brush

[App page](https://appshunter.io/ios/app/smile-brush/id6762516221)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Terna free?

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

### Is Smile Brush free?

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

### Do Terna or Smile Brush have ads?

Neither Terna nor Smile Brush shows ads.

### Which is updated more often, Terna or Smile Brush?

Terna ships an update every 5 weeks, and Smile Brush weekly. Most recently, Terna was updated on May 13, 2026 and Smile Brush on September 8, 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.*