# JSS Merchant Version vs Calo8

The clearest difference is in-app purchases: JSS Merchant Version at none against Calo8's 2. JSS Merchant Version also leads on ads (none vs shown) and update cadence (every 6 weeks vs every 34 months). On price and device support there is nothing between them.

Both are free to download. Calo8 sells 2 in-app purchases, starting at $9.99 per month. JSS Merchant Version asks for nothing beyond the download.

JSS Merchant Version ships an update every 6 weeks, Calo8 every 34 months. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | JSS Merchant Version | Calo8 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 34 months |
| Size | 13 MB | 33 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Jinshisong](https://appshunter.io/developer/738323184) | [桦 封](https://appshunter.io/developer/1639552917) |

## What reviewers say

### JSS Merchant Version

[App page](https://appshunter.io/ios/app/jss-merchant-version/id1410214081)

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

**In-app purchases:** none


### Calo8

[App page](https://appshunter.io/ios/app/calo8/id6474119619)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calo Premium Monthly | $9.99 | per month |
| Calo Premium Yearly | $49.99 | per year |


## Frequently asked questions

### Is JSS Merchant Version free?

JSS Merchant Version is free to download, with no in-app purchases.

### Is Calo8 free?

Calo8 is free to download, with in-app purchases available.

### Do JSS Merchant Version or Calo8 have ads?

Calo8 shows ads; JSS Merchant Version does not.

### Which is updated more often, JSS Merchant Version or Calo8?

JSS Merchant Version ships an update every 6 weeks, and Calo8 every 34 months. Most recently, JSS Merchant Version was updated on November 6, 2026 and Calo8 on November 8, 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.*