# Koar vs Zerxus

The clearest difference is update cadence: Zerxus at every 2 days against Koar's every 5 days. Zerxus also leads on iOS requirement (15.0 vs 18). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Koar sells 3 in-app purchases, starting at $9.99 per month and Zerxus sells 4 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

Koar ships an update every 5 days, Zerxus every 2 days. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Koar | Zerxus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Size | 150 MB | 3 MB |
| Requires iOS | 18 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aric Malka](https://appshunter.io/developer/1886770639) | [Strategypeeps inc](https://appshunter.io/developer/6784692742) |

## What reviewers say

### Koar

[App page](https://appshunter.io/ios/app/koar-strength-training/id6760911936)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Yearly | $69.99 | per year |
| Lifetime Access | $179.00 | one-time |


### Zerxus

[App page](https://appshunter.io/ios/app/zerxus-ai-strength-coach/id6784692740)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zerxus AI | $8.99 | per month |
| Zerxus AI + Coach | $24.99 | per month |
| Zerxus AI | $89.99 | per year |
| Zerxus AI + Coach | $199.99 | per year |


## Frequently asked questions

### Is Koar free?

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

### Is Zerxus free?

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

### Do Koar or Zerxus have ads?

Neither Koar nor Zerxus shows ads.

### Which is updated more often, Koar or Zerxus?

Koar ships an update every 5 days, and Zerxus every 2 days. Most recently, Koar was updated on October 31, 2026 and Zerxus on October 28, 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.*