# Koer vs Solar Booster

The clearest difference is in-app purchases: Solar Booster at none against Koer's 8. Solar Booster also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Koer sells 8 in-app purchases, starting at $1.99 per month. Solar Booster asks for nothing beyond the download.

Koer ships an update every 3 months, Solar Booster every 3 weeks. The most recent releases landed on October 5, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Koer | Solar Booster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (161 ratings)](https://appshunter.io/ios/app/koer/id1508325859/reviews)** | — |
| Number of ratings | **161** | — |
| Positive reviews | 41.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 117 MB | 33 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Die Bende Pty Ltd](https://appshunter.io/developer/1524198999) | [SolrBoost Pty Ltd](https://appshunter.io/developer/1667247561) |

## What reviewers say

### Koer

[App page](https://appshunter.io/ios/app/koer/id1508325859)

Discover potential matches and connect with new people in your preferred language. This platform offers a secure environment to find friends, companions, or romantic partners on your own terms. Create a profile, share your interests, and start building meaningful connections.

**Highlights:** Global pool of potential matches, Secure and controlled environment, Chat in your heart language, Profile creation with interests, Photo uploads, Easy signup process

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Koer 1 Maand | $1.99 | per month |
| Premium Pers Vrydag | $2.99 | per month |
| Premium Groot 5 | $2.99 | per month |
| Koer 1 Maand | $3.99 | per month |
| Premium 1 Maand | $4.99 | per month |
| Koer 3 Maande | $11.49 | per 3 months |
| Premium 3 Maande | $11.99 | per 3 months |
| Koer 6 Maande | $16.99 | per 6 months |


### Solar Booster

[App page](https://appshunter.io/ios/app/solar-booster/id6450875830)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Koer free?

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

### Is Solar Booster free?

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

### Do Koer or Solar Booster have ads?

Koer shows ads; Solar Booster does not.

### Which is updated more often, Koer or Solar Booster?

Koer ships an update every 3 months, and Solar Booster every 3 weeks. Most recently, Koer was updated on October 5, 2026 and Solar Booster on October 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.*