# Petro POS vs Vietinvoice Icorp

The clearest difference is update cadence: Petro POS at fortnightly against Vietinvoice Icorp's every 4 months. Vietinvoice Icorp's advantage is iOS requirement (13.0 vs 15.1). 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.

Petro POS ships an update fortnightly, Vietinvoice Icorp every 4 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Petro POS | Vietinvoice Icorp |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Size | 30 MB | 29 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [DCV-ICTLife](https://appshunter.io/developer/1458691594) | [CÔNG TY CỔ PHẦN ICORP](https://appshunter.io/developer/1807710607) |

## What reviewers say

### Petro POS

[App page](https://appshunter.io/ios/app/petro-pos/id6475761469)

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

**In-app purchases:** none


### Vietinvoice Icorp

[App page](https://appshunter.io/ios/app/vietinvoice-icorp/id6747735046)

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

**In-app purchases:** none


## Frequently asked questions

### Is Petro POS free?

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

### Is Vietinvoice Icorp free?

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

### Do Petro POS or Vietinvoice Icorp have ads?

Neither Petro POS nor Vietinvoice Icorp shows ads.

### Which is updated more often, Petro POS or Vietinvoice Icorp?

Petro POS ships an update fortnightly, and Vietinvoice Icorp every 4 months. Most recently, Petro POS was updated on November 4, 2026 and Vietinvoice Icorp on October 30, 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.*