# Aca B2B vs Opak Erp

The clearest difference is update cadence: Opak Erp at every 6 weeks against Aca B2B's every 11 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Aca B2B ships an update every 11 months, Opak Erp every 6 weeks. The most recent releases landed on October 11, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Aca B2B | Opak Erp |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 6 weeks** |
| Size | 71 MB | 45 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [NAT Yazilim](https://appshunter.io/developer/1137276538) | [Webformans](https://appshunter.io/developer/1490078390) |

## What reviewers say

### Aca B2B

[App page](https://appshunter.io/ios/app/aca-b2b/id1579076480)

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

**In-app purchases:** none


### Opak Erp

[App page](https://appshunter.io/ios/app/opak-erp/id6473782802)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Aca B2B free?

Aca B2B is free to download, with no in-app purchases.

### Is Opak Erp free?

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

### Do Aca B2B or Opak Erp have ads?

Neither Aca B2B nor Opak Erp shows ads.

### Which is updated more often, Aca B2B or Opak Erp?

Aca B2B ships an update every 11 months, and Opak Erp every 6 weeks. Most recently, Aca B2B was updated on October 11, 2026 and Opak Erp on October 16, 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.*