# E vs konfipaySign

The clearest difference is in-app purchases: konfipaySign at none against E's 4. konfipaySign also leads on update cadence (every 2 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. E sells 4 in-app purchases, starting at $50.00 per year. konfipaySign asks for nothing beyond the download.

E ships an update every 4 months, konfipaySign every 2 days. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | E | konfipaySign |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 days** |
| Size | 61 MB | 9 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Open7](https://appshunter.io/developer/1799037451) | [cisbox GmbH](https://appshunter.io/developer/1326084072) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-invoice-viewer/id6742571585)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard iOS (annual) | $50.00 | per year |
| Premium (annual) | $90.00 | per year |
| E-Invoice Viewer Standard - 1 year | $50.00 | one-time |
| E-Invoice Viewer Premium - 1 year | $90.00 | one-time |


### konfipaySign

[App page](https://appshunter.io/ios/app/konfipaysign/id6748627521)

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

**In-app purchases:** none


## Frequently asked questions

### Is E free?

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

### Is konfipaySign free?

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

### Do E or konfipaySign have ads?

Neither E nor konfipaySign shows ads.

### Which is updated more often, E or konfipaySign?

E ships an update every 4 months, and konfipaySign every 2 days. Most recently, E was updated on October 10, 2026 and konfipaySign on October 11, 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.*