# Solar vs Vimmo

The clearest difference is in-app purchases: Solar at none against Vimmo's 3. Solar also leads on ads (none vs shown) and iOS requirement (11.0 vs 18.0). Vimmo's advantage is update cadence (every 8 days vs every 3 weeks). On price and device support there is nothing between them.

Both are free to download. Vimmo sells 3 in-app purchases, starting at $3.99 per month. Solar asks for nothing beyond the download.

Solar ships an update every 3 weeks, Vimmo every 8 days. The most recent releases landed on October 10, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Solar | Vimmo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Size | 53 MB | 29 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lukas Klein](https://appshunter.io/developer/1716534841) | [Jonas Poser](https://appshunter.io/developer/1886570622) |

## What reviewers say

### Solar

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Vimmo

[App page](https://appshunter.io/ios/app/vimmo-apartment-check/id6760861336)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vimmo Plus | $3.99 | per month |
| Vimmo Plus — Yearly | $22.99 | per year |
| Vimmo Single Report | $2.99 | one-time |


## Frequently asked questions

### Is Solar free?

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

### Is Vimmo free?

Vimmo is free to download, with in-app purchases available.

### Do Solar or Vimmo have ads?

Vimmo shows ads; Solar does not.

### Which is updated more often, Solar or Vimmo?

Solar ships an update every 3 weeks, and Vimmo every 8 days. Most recently, Solar was updated on October 10, 2026 and Vimmo on October 19, 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.*