L4D vs Pairadox
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
L4D
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.
- Force any 4-digit number
- Uses two bank cards
- Multiple input methods
- Easy to perform
- Entertainment purposes only
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L4D is a magic app that allows you to force any 4 digit number using two bank cards. Multiple input methods available Easy to perform App is for entertainment purposes only
Pairadox
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PAIRADOX โ IMPOSSIBLE CONNECTIONS, PROVEN IN NUMBERS Created by professional mentalist Paul Brook, Pairadox is a precision-engineered mentalism tool designed to demonstrate an undeniable connection between two people. Without collaboration or fishing, it transforms private choices into a shared numerical outcome that feels both impossible and deeply personal. VARIOUS INPUT METHODS Use your iPhone keyboard, a Bluetooth remote, or your voice to secretly input information directly into the app. NUMBERS BECOME MEANINGFUL The final result is a moment that transforms abstract numbers into the most human of connections, one that feels intimate, intentional, and unmistakably real.
Screenshots
Verdict
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.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
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.
| Parameter | L4D | Pairadox |
|---|---|---|
| Price | $29.99 | $24.99 โ better |
| Positive reviews | 100.0% of reviews | โ |
| Update frequency | Every 6 days โ better | Every 2 months |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Monetization | Paid | โ |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 โ better | 18.5 |
| Further details โ not scored | ||
| Size | 34 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Joshua Riley | Paul Michael Brook |
In-app purchases
L4D
No in-app purchases
Pairadox
- Inject Input$14.99
- URL Scheme Output$14.99
- API Input$14.99
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- Clipboard Output$14.99
- Unlock All$29.99









