# L4D vs Pairadox

The clearest difference is in-app purchases: L4D at none against Pairadox's 5. L4D also leads on update cadence (every 6 days vs every 2 months) and iOS requirement (16.0 vs 18.5). Pairadox's advantage is price ($24.99 vs $29.99). On ads and device support there is nothing between them.

L4D costs $29.99 and Pairadox $24.99 up front. Pairadox sells 5 one-off in-app purchases. L4D asks for nothing beyond the download.

L4D ships an update every 6 days, Pairadox every 2 months. The most recent releases landed on September 6, 2026 and August 19, 2026 respectively.

## The numbers

| Metric | L4D | Pairadox |
| --- | --- | --- |
| Price | $29.99 | **$24.99** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 months |
| Monetization | Paid | — |
| Size | 34 MB | 30 MB |
| Requires iOS | **16.0** | 18.5 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Joshua Riley](https://appshunter.io/developer/1492928915) | [Paul Michael Brook](https://appshunter.io/developer/1789794964) |

## What reviewers say

### L4D

[App page](https://appshunter.io/ios/app/l4d/id6470237324)

This entertainment app allows users to perform a magic trick involving four-digit numbers and two bank cards. It offers multiple input methods and is designed for easy execution. The app is intended solely for amusement.

**Highlights:** Force any 4-digit number, Uses two bank cards, Multiple input methods, Easy to perform, Entertainment purposes only

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

**In-app purchases:** none


### Pairadox

[App page](https://appshunter.io/ios/app/pairadox/id6748616973)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Inject Input | $14.99 | one-time |
| URL Scheme Output | $14.99 | one-time |
| API Input | $14.99 | one-time |
| Clipboard Output | $14.99 | one-time |
| Unlock All | $29.99 | one-time |


## Frequently asked questions

### Is L4D free?

L4D costs $29.99, with no in-app purchases.

### Is Pairadox free?

Pairadox costs $24.99, and also offers in-app purchases.

### Do L4D or Pairadox have ads?

Neither L4D nor Pairadox shows ads.

### Which is updated more often, L4D or Pairadox?

L4D ships an update every 6 days, and Pairadox every 2 months. Most recently, L4D was updated on September 6, 2026 and Pairadox on August 19, 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.*