# Krampol Oldtimer App vs Solar

The clearest difference is update cadence: Solar at every 3 weeks against Krampol Oldtimer App's every 12 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.

Krampol Oldtimer App ships an update every 12 months, Solar every 3 weeks. The most recent releases landed on September 10, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Krampol Oldtimer App | Solar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 weeks** |
| Size | 22 MB | 53 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zappter AG](https://appshunter.io/developer/1560121776) | [Lukas Klein](https://appshunter.io/developer/1716534841) |

## What reviewers say

### Krampol Oldtimer App

[App page](https://appshunter.io/ios/app/krampol-oldtimer-app/id1598732946)

**Features:** macOS Compatibility

**In-app purchases:** none


### Solar

[App page](https://appshunter.io/ios/app/solar-rechner/id6446852474)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Krampol Oldtimer App free?

Krampol Oldtimer App is free to download, with no in-app purchases.

### Is Solar free?

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

### Do Krampol Oldtimer App or Solar have ads?

Neither Krampol Oldtimer App nor Solar shows ads.

### Which is updated more often, Krampol Oldtimer App or Solar?

Krampol Oldtimer App ships an update every 12 months, and Solar every 3 weeks. Most recently, Krampol Oldtimer App was updated on September 10, 2026 and Solar on September 11, 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.*