Comparison

L4D vs Pairadox

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

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.

Highlights
  • Force any 4-digit number
  • Uses two bank cards
  • Multiple input methods
  • Easy to perform
  • Entertainment purposes only
Features
Read full description

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

About

Pairadox

Features
Read full description

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

L4D4 screens
Pairadox4 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences ยท 4 level
L4D versus Pairadox: the parameters behind the verdict, then further details
ParameterL4DPairadox
Price$29.99$24.99 โ€” better
Positive reviews100.0% of reviewsโ€”
Update frequencyEvery 6 days โ€” betterEvery 2 months
AdsNoNo
In-app purchasesNo โ€” betterYes
MonetizationPaidโ€”
DevicesiPhoneiPhone
Requires iOS16.0 โ€” better18.5
Further details โ€” not scored
Size34 MB30 MB
Age rating4+4+
DeveloperJoshua RileyPaul Michael Brook

In-app purchases

None

L4D

No in-app purchases

5 purchases

Pairadox

One-time5
  • Inject Input$14.99
  • URL Scheme Output$14.99
  • API Input$14.99
Show 2 more
  • Clipboard Output$14.99
  • Unlock All$29.99

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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