# Invoice Maker vs NFC UNLock

The clearest difference is in-app purchases: NFC UNLock at none against Invoice Maker's 2. NFC UNLock also leads on update cadence (every 3 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Invoice Maker sells 2 in-app purchases, starting at $29.99 per year. NFC UNLock asks for nothing beyond the download.

Invoice Maker ships an update every 3 months, NFC UNLock every 3 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | Invoice Maker | NFC UNLock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 32 MB | 45 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Manuel Worlitzer](https://appshunter.io/developer/1785527240) | [Mbowel Intelligent Technology Co., Ltd](https://appshunter.io/developer/1895003463) |

## What reviewers say

### Invoice Maker

[App page](https://appshunter.io/ios/app/invoice-maker-ledgr/id6757974274)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoice Maker Premium | $29.99 | per year |
| Invoice Maker Premium | $29.99 | per year |


### NFC UNLock

[App page](https://appshunter.io/ios/app/nfc-unlock/id6762770999)

**In-app purchases:** none


## Frequently asked questions

### Is Invoice Maker free?

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

### Is NFC UNLock free?

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

### Do Invoice Maker or NFC UNLock have ads?

Neither Invoice Maker nor NFC UNLock shows ads.

### Which is updated more often, Invoice Maker or NFC UNLock?

Invoice Maker ships an update every 3 months, and NFC UNLock every 3 weeks. Most recently, Invoice Maker was updated on October 25, 2026 and NFC UNLock on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*