# OAK POS vs Invoicebillity

The clearest difference is rating: OAK POS at 5.0 against Invoicebillity's 4.0. OAK POS also leads on in-app purchases (none vs 6). Invoicebillity's advantage is iOS requirement (10.0 vs 15.0). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Invoicebillity sells 6 in-app purchases, starting at $5.99 per month. OAK POS asks for nothing beyond the download.

OAK POS holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

OAK POS ships an update every 6 weeks, Invoicebillity every 3 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | OAK POS | Invoicebillity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/oak-pos/id641438373/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/invoicebillity/id1336304056/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 71 MB | 30 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oak, Inc.](https://appshunter.io/developer/641438376) | [AverSys Mobile](https://appshunter.io/developer/476346565) |

## What reviewers say

### OAK POS

[App page](https://appshunter.io/ios/app/oak-pos/id641438373)

This multi-channel point-of-sale system helps rental businesses manage in-store and online orders. It offers cloud-based pricing and availability management, supporting multiple locations and users. The system integrates with existing merchant accounts for seamless transactions.

**Highlights:** Multi-channel order taking (in-store & online), Cloud-based pricing and availability management, Supports multiple store locations, Unlimited user accounts, Seamless online order synchronization, Discount and coupon management

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

**In-app purchases:** none


### Invoicebillity

[App page](https://appshunter.io/ios/app/invoicebillity/id1336304056)

Manage your business finances with ease. Create professional invoices and estimates, track sales, purchases, expenses, and inventory. Get paid faster with automated reminders and gain insights with informative dashboards and reports.

**Highlights:** Professional invoice and estimate creation, Inventory and stock tracking, Expense and receipt management, Automated payment reminders, Informative business dashboard, Various business reports, Cloud-based access across devices

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoicebillity Starter Monthly | $5.99 | per month |
| Invoicebillity Pro - Monthly | $8.99 | per month |
| Unlimited Monthly | $11.99 | per month |
| Invoicebillity Starter | $59.99 | per year |
| Invoicebillity - Pro | $89.99 | per year |
| Invoicebillity Unlimited | $119.99 | per year |


## Frequently asked questions

### Is OAK POS free?

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

### Is Invoicebillity free?

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

### Which has better reviews, OAK POS or Invoicebillity?

OAK POS is rated higher. OAK POS averages 5.0 out of 5 from 1 ratings, while Invoicebillity averages 4.0 from 1 ratings.

### Do OAK POS or Invoicebillity have ads?

Neither OAK POS nor Invoicebillity shows ads.

### Which is updated more often, OAK POS or Invoicebillity?

OAK POS ships an update every 6 weeks, and Invoicebillity every 3 weeks. Most recently, OAK POS was updated on October 23, 2026 and Invoicebillity on October 24, 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.*