# Invoice Professional vs Oolio mPOS

The clearest difference is in-app purchases: Oolio mPOS at none against Invoice Professional's 6. Oolio mPOS also leads on iOS requirement (11.0 vs 15.6). Invoice Professional's advantage is update cadence (every 3 months vs every 18 months) and device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. Invoice Professional sells 6 in-app purchases, starting at $2.99 per month. Oolio mPOS asks for nothing beyond the download.

Invoice Professional ships an update every 3 months, Oolio mPOS every 18 months. The most recent releases landed on October 15, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Invoice Professional | Oolio mPOS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 18 months |
| Monetization | Subscription | — |
| Size | 27 MB | 31 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sockii Pty Ltd](https://appshunter.io/developer/441413691) | [Oolio Pty Ltd.](https://appshunter.io/developer/1641841625) |

## What reviewers say

### Invoice Professional

[App page](https://appshunter.io/ios/app/invoice-professional/id1141264512)

Create professional invoices, quotes, and statements on the go. Manage clients, products, and inventory with ease. Supports cloud sync, PDF export, and printing.

**Highlights:** Create invoices, quotes, and statements, Client and product management, Simple inventory tracking, Cloud and local sync options, PDF export and email, Partial payment support, Multiple tax support

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Single Company | $2.99 | per month |
| Multiple Company | $7.49 | per month |
| Single Company | $18.49 | per 6 months |
| Single Company | $35.99 | per year |
| Multiple Company | $41.99 | per 6 months |
| Multiple Company | $82.99 | per year |


### Oolio mPOS

[App page](https://appshunter.io/ios/app/oolio-mpos/id1641841623)

**In-app purchases:** none


## Frequently asked questions

### Is Invoice Professional free?

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

### Is Oolio mPOS free?

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

### Do Invoice Professional or Oolio mPOS have ads?

Neither Invoice Professional nor Oolio mPOS shows ads.

### Which is updated more often, Invoice Professional or Oolio mPOS?

Invoice Professional ships an update every 3 months, and Oolio mPOS every 18 months. Most recently, Invoice Professional was updated on October 15, 2026 and Oolio mPOS on October 27, 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.*