# Harlow vs PrimalThenics Studio

Harlow and PrimalThenics Studio are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Harlow ships an update every 2 months, PrimalThenics Studio every 4 months. The most recent releases landed on October 30, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Harlow | PrimalThenics Studio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 175 MB | 70 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Clubworx](https://appshunter.io/developer/1595530039) | [Xoda Pty Ltd](https://appshunter.io/developer/1662306656) |

## What reviewers say

### Harlow

[App page](https://appshunter.io/ios/app/harlow/id1613111912)

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

**In-app purchases:** none


### PrimalThenics Studio

[App page](https://appshunter.io/ios/app/primalthenics-studio/id6471898084)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Harlow free?

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

### Is PrimalThenics Studio free?

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

### Do Harlow or PrimalThenics Studio have ads?

Neither Harlow nor PrimalThenics Studio shows ads.

### Which is updated more often, Harlow or PrimalThenics Studio?

Harlow ships an update every 2 months, and PrimalThenics Studio every 4 months. Most recently, Harlow was updated on October 30, 2026 and PrimalThenics Studio on October 6, 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.*