# KlimaKarl vs Smart

The clearest difference is update cadence: KlimaKarl at every 3 months against Smart's every 6 months. 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.

KlimaKarl ships an update every 3 months, Smart every 6 months. The most recent releases landed on October 18, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | KlimaKarl | Smart |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Size | 48 MB | 107 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hendrik Hinrichs](https://appshunter.io/developer/1591407053) | [Ekinex spa](https://appshunter.io/developer/1503321534) |

## What reviewers say

### KlimaKarl

[App page](https://appshunter.io/ios/app/klimakarl/id1591407051)

**Features:** macOS Compatibility

**In-app purchases:** none


### Smart

[App page](https://appshunter.io/ios/app/smart-access-2/id6469033029)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KlimaKarl free?

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

### Is Smart free?

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

### Do KlimaKarl or Smart have ads?

Neither KlimaKarl nor Smart shows ads.

### Which is updated more often, KlimaKarl or Smart?

KlimaKarl ships an update every 3 months, and Smart every 6 months. Most recently, KlimaKarl was updated on October 18, 2026 and Smart on October 16, 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.*