Comparison

Paradoxes vs RelativityTheory

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

Head to head
About

Paradoxes

Explore a vast collection of over 220 logical oddities with detailed explanations. This app serves as a reference for philosophy students and anyone seeking engaging conversational topics, offering content in flashcard, dictionary, audio, and self-study formats.

Highlights
  • Over 220 paradoxes with explanations
  • Flashcard format
  • Dictionary format
  • Audio explanations
  • Self-study mode
  • Categorized paradoxes
Features
Read full description

Paradoxes is your go to reference app to learn a stack of logical oddities. We've got over 220 paradoxes with a full explanation. Whether you are a philosophy student or just looking for some conversational party tricks this app will do you some good. We present the content in flash cards, dictionary, audio and self study formats. For the serious paradoxer this app also features flashcards and paradoxes by category. Don't fall into the Decision-making paradox, buy this app and get educated.

About

RelativityTheory

Features
Read full description

Introducing and explaining the mysterious phenomenon derived from the theory of relativity. In particular, we will detail the changes in the way time progresses. The interstellar flight screen shows how time progresses in response to rocket speed. Shows the difference in how time progresses between rockets and the earth in space travel. The GPS screen shows that gravity changes the way time progresses.

Screenshots

Paradoxes4 screens
RelativityTheory2 screens

Verdict

The call

The clearest difference is update cadence: RelativityTheory at every 3 weeks against Paradoxes's every 90 months. Paradoxes's advantage is iOS requirement (12.0 vs 14.4). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Paradoxes costs $0.99 and RelativityTheory $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Paradoxes ships an update every 90 months, RelativityTheory every 3 weeks. The most recent releases landed on September 18, 2026 and September 13, 2026 respectively.

Scorecard2 real differences · 8 level
Paradoxes versus RelativityTheory: the parameters behind the verdict, then further details
ParameterParadoxesRelativityTheory
Price$0.99$0.99
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 90 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better14.4
Further details — not scored
Size28 MB6 MB
Age rating9+4+
DeveloperPolemics Applications LLCTakao Akatsu

In-app purchases

None

Paradoxes

No in-app purchases

None

RelativityTheory

No in-app purchases

Questions

Is Paradoxes free?
Paradoxes costs $0.99, with no in-app purchases.
Is RelativityTheory free?
RelativityTheory costs $0.99, with no in-app purchases.
Do Paradoxes or RelativityTheory have ads?
Neither Paradoxes nor RelativityTheory shows ads.
Which is updated more often, Paradoxes or RelativityTheory?
Paradoxes ships an update every 90 months, and RelativityTheory every 3 weeks. Most recently, Paradoxes was updated on September 18, 2026 and RelativityTheory on September 13, 2026.

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