# Onex ERP vs Carmension (SP)

The clearest difference is in-app purchases: Onex ERP at none against Carmension (SP)'s 5. Onex ERP also leads on update cadence (every 9 days vs every 6 months) and iOS requirement (11.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Carmension (SP) sells 5 in-app purchases, starting at $1.99 per 7 days. Onex ERP asks for nothing beyond the download.

Onex ERP ships an update every 9 days, Carmension (SP) every 6 months. The most recent releases landed on October 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Onex ERP | Carmension (SP) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 6 months |
| Size | 110 MB | 95 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Suraj Rameshwar Dubey](https://appshunter.io/developer/1037576555) | [Carmension Ltd](https://appshunter.io/developer/1549651038) |

## What reviewers say

### Onex ERP

[App page](https://appshunter.io/ios/app/onex-erp/id1037576556)

**Features:** macOS Compatibility

**In-app purchases:** none


### Carmension (SP)

[App page](https://appshunter.io/ios/app/carmension-sp/id1552887194)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| 6 Month | $5.49 | per 6 months |
| 1 Month | $6.49 | per month |
| 6 Month | $47.99 | per 6 months |
| Yearly | $64.99 | per year |


## Frequently asked questions

### Is Onex ERP free?

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

### Is Carmension (SP) free?

Carmension (SP) is free to download, with in-app purchases available.

### Do Onex ERP or Carmension (SP) have ads?

Neither Onex ERP nor Carmension (SP) shows ads.

### Which is updated more often, Onex ERP or Carmension (SP)?

Onex ERP ships an update every 9 days, and Carmension (SP) every 6 months. Most recently, Onex ERP was updated on October 29, 2026 and Carmension (SP) 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.*