# PetraPOS vs inVolo

The clearest difference is in-app purchases: PetraPOS at none against inVolo's 16. PetraPOS also leads on ads (none vs shown) and device support (3 vs 1). inVolo's advantage is update cadence (weekly vs every 3 weeks). On price there is nothing between them.

Both are free to download. inVolo sells 16 in-app purchases, starting at $7.99 per month. PetraPOS asks for nothing beyond the download.

PetraPOS ships an update every 3 weeks, inVolo weekly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | PetraPOS | inVolo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 50 MB | 34 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Oguzhan ATAS](https://appshunter.io/developer/1807168970) | [inVolo](https://appshunter.io/developer/1852060216) |

## What reviewers say

### PetraPOS

[App page](https://appshunter.io/ios/app/petrapos/id6744338657)

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

**In-app purchases:** none


### inVolo

[App page](https://appshunter.io/ios/app/involo/id6755120977)

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

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $7.99 | per month |
| inVolo Premium | $9.99 | per month |
| inVolo Premium | $9.99 | per month |
| inVolo Premium | $12.99 | per month |
| inVolo Premium | $15.99 | per month |
| inVolo Plus Monthly | $19.99 | per month |
| inVolo Premium | $59.99 | per year |
| inVolo Premium | $69.99 | per year |
| inVolo Premium | $79.99 | per year |
| inVolo Premium | $109.99 | per year |
| inVolo Premium | $134.99 | per year |
| inVolo Plus Yearly | $159.99 | per year |
| inVolo Pro Yearly | $239.99 | per year |
| 25 AI Boost Credit | $4.99 | one-time |
| 75 AI Boost Credits | $9.99 | one-time |
| 250 AI Boost Credits | $24.99 | one-time |


## Frequently asked questions

### Is PetraPOS free?

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

### Is inVolo free?

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

### Do PetraPOS or inVolo have ads?

inVolo shows ads; PetraPOS does not.

### Which is updated more often, PetraPOS or inVolo?

PetraPOS ships an update every 3 weeks, and inVolo weekly. Most recently, PetraPOS was updated on October 30, 2026 and inVolo on October 28, 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.*