# Sasol Solar Challenge vs Klarbud

The clearest difference is update cadence: Sasol Solar Challenge at weekly against Klarbud's monthly. 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.

Sasol Solar Challenge ships an update weekly, Klarbud monthly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sasol Solar Challenge | Klarbud |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Size | 36 MB | 40 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SOUTH AFRICAN SOLAR EVENTS (PTY) LTD.](https://appshunter.io/developer/1472420838) | [Kjetil Furas](https://appshunter.io/developer/6803428496) |

## What reviewers say

### Sasol Solar Challenge

[App page](https://appshunter.io/ios/app/sasol-solar-challenge/id1638534343)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Klarbud

[App page](https://appshunter.io/ios/app/klarbud/id6803785942)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sasol Solar Challenge free?

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

### Is Klarbud free?

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

### Do Sasol Solar Challenge or Klarbud have ads?

Neither Sasol Solar Challenge nor Klarbud shows ads.

### Which is updated more often, Sasol Solar Challenge or Klarbud?

Sasol Solar Challenge ships an update weekly, and Klarbud monthly. Most recently, Sasol Solar Challenge was updated on November 3, 2026 and Klarbud on October 31, 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.*