# AIGNEP Scan vs Simple Invoice Maker

The clearest difference is in-app purchases: AIGNEP Scan at none against Simple Invoice Maker's 2. AIGNEP Scan also leads on ads (none vs shown) and iOS requirement (8.0 vs 15.1). Simple Invoice Maker's advantage is update cadence (every 2 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Simple Invoice Maker sells 2 in-app purchases, starting at $3.99 per month. AIGNEP Scan asks for nothing beyond the download.

AIGNEP Scan ships an update every 2 months, Simple Invoice Maker every 2 weeks. The most recent releases landed on October 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AIGNEP Scan | Simple Invoice Maker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 8 MB | 75 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Keitgen GmbH](https://appshunter.io/developer/416061212) | [Deep Saha](https://appshunter.io/developer/1880794882) |

## What reviewers say

### AIGNEP Scan

[App page](https://appshunter.io/ios/app/aignep-scan/id1096601355)

**In-app purchases:** none


### Simple Invoice Maker

[App page](https://appshunter.io/ios/app/simple-invoice-maker-invoiso/id6760972005)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoiso Monthly Pro | $3.99 | per month |
| Invoiso Yearly Pro | $34.99 | per year |


## Frequently asked questions

### Is AIGNEP Scan free?

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

### Is Simple Invoice Maker free?

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

### Do AIGNEP Scan or Simple Invoice Maker have ads?

Simple Invoice Maker shows ads; AIGNEP Scan does not.

### Which is updated more often, AIGNEP Scan or Simple Invoice Maker?

AIGNEP Scan ships an update every 2 months, and Simple Invoice Maker every 2 weeks. Most recently, AIGNEP Scan was updated on October 3, 2026 and Simple Invoice Maker on October 25, 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.*