# Duoza vs TapCode NFC

The clearest difference is in-app purchases: Duoza at none against TapCode NFC's 3. Duoza also leads on update cadence (fortnightly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. TapCode NFC sells 3 one-off in-app purchases. Duoza asks for nothing beyond the download.

Duoza ships an update fortnightly, TapCode NFC every 4 months. Both last shipped on November 10, 2026.

## The numbers

| Metric | Duoza | TapCode NFC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Size | 7 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [耀 何](https://appshunter.io/developer/1896515984) | [思远 郝](https://appshunter.io/developer/6784054953) |

## What reviewers say

### Duoza

[App page](https://appshunter.io/ios/app/duoza/id6771247273)

**Features:** macOS Compatibility

**In-app purchases:** none


### TapCode NFC

[App page](https://appshunter.io/ios/app/tapcode-nfc/id6784588712)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy a Coffee | $0.99 | one-time |
| Buy a Simple Meal | $3.99 | one-time |
| Support TapCode | $9.99 | one-time |


## Frequently asked questions

### Is Duoza free?

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

### Is TapCode NFC free?

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

### Do Duoza or TapCode NFC have ads?

Neither Duoza nor TapCode NFC shows ads.

### Which is updated more often, Duoza or TapCode NFC?

Duoza ships an update fortnightly, and TapCode NFC every 4 months. Most recently, Duoza was updated on November 10, 2026 and TapCode NFC on November 10, 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.*