# Invoice Maker vs OpenMat

The clearest difference is update cadence: OpenMat at every 9 days against Invoice Maker's every 8 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Invoice Maker sells 3 in-app purchases, starting at $4.99 per 7 days and OpenMat sells 2 in-app purchases, starting at $25.00 per month. Whichever you choose, the download price is not the number that matters.

Invoice Maker ships an update every 8 months, OpenMat every 9 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Invoice Maker | OpenMat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/invoice-maker-estimate-and-bill/id6754047400/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 68 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aigarai D.O.O](https://appshunter.io/developer/6795623911) | [Samer Haidar](https://appshunter.io/developer/1878393745) |

## What reviewers say

### Invoice Maker

[App page](https://appshunter.io/ios/app/invoice-maker-estimate-and-bill/id6754047400)

Create professional invoices and estimates quickly and easily. Manage billing, track payments, and keep your business finances organized on the go. Send invoices via email or share links directly to get paid faster.

**Highlights:** Create and send invoices in seconds, Generate estimates and quotes, Track payments and unpaid invoices, Store client and payment data, Export PDF reports, Support for multiple currencies and tax rates

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly | $8.99 | per month |
| Yearly | $89.99 | per year |


### OpenMat

[App page](https://appshunter.io/ios/app/openmat/id6760020860)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OpenMat Pro | $25.00 | per month |
| OpenMat Pro (Annual) | $249.00 | per year |


## Frequently asked questions

### Is Invoice Maker free?

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

### Is OpenMat free?

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

### Do Invoice Maker or OpenMat have ads?

Neither Invoice Maker nor OpenMat shows ads.

### Which is updated more often, Invoice Maker or OpenMat?

Invoice Maker ships an update every 8 months, and OpenMat every 9 days. Most recently, Invoice Maker was updated on October 30, 2026 and OpenMat on October 31, 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.*