# SMART vs Calotech

The clearest difference is iOS requirement: SMART at 11.0 against Calotech's 16.0. 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.

## The numbers

| Metric | SMART | Calotech |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 26 MB | 27 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [De Dietrich Thermique](https://appshunter.io/developer/577447608) | [Calorie Fluor](https://appshunter.io/developer/1693605712) |

## What reviewers say

### SMART

[App page](https://appshunter.io/ios/app/smart-pv-pro-bdr/id1539168987)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calotech

[App page](https://appshunter.io/ios/app/calotech/id6450924301)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SMART free?

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

### Is Calotech free?

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

### Do SMART or Calotech have ads?

Neither SMART nor Calotech shows ads.

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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.*