Comparison

Pythagoras Interactive vs BaseLearn by ChatStick

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

Head to head
About

Pythagoras Interactive

Explore the Pythagorean Theorem with an interactive visual tool. Adjust triangle legs to observe real-time changes in square areas and hypotenuse length. Distances are displayed in radical form when necessary.

Highlights
  • Interactive triangle manipulation
  • Visual representation of squares on sides
  • Real-time updates to hypotenuse and areas
  • Radical form for distances
  • Clear labeling of sides and areas
Features
Read full description

Eureka! An interactive illustration of the Pythagorean Theorem. Drag the legs of the right triangle and watch the three squares transform in real time. Every side shows its length, every square its area — in radical form when needed, so you'll see 2√2 rather than 2.828. Slide through a visual demonstration of Euclid's original proof from Book I of the Elements. Understand why the theorem is always true, not just what it claims.

About

BaseLearn by ChatStick

Features
Read full description

BaseLearn helps students, developers, and curious learners understand number systems through practice, not memorization. Convert instantly between Binary, Decimal, Octal, and Hexadecimal while you type. Then open a guided explanation to see exactly how each result was calculated. Why BaseLearn: - Real-time base conversion with clean, readable results - Step-by-step explanation mode for deeper understanding - Structured lesson path with progress, XP, and streak tracking - Quiz modes that build speed and accuracy - History and favorites to revisit important conversions - Advanced tools for practical binary/hex workflows What you can do: - Convert values across major number bases in seconds - Group binary digits for easier reading - Learn core concepts with 14 focused lessons - Practice with multiple quiz types, including a timed challenge - Use utility tools such as Two’s Complement, Bit Length View, Fractional Converter, Custom Base (2-36), and ASCII Table Premium: - One-time purchase (no subscription) - Unlock full lessons, all quiz types, and full tool access - Remove ads and free-tier limits Whether you are preparing for exams, learning computer science fundamentals, or refreshing your base-conversion skills, BaseLearn gives you a fast and structured way to improve every day.

Screenshots

Pythagoras Interactive3 screens
BaseLearn by ChatStick4 screens

Verdict

The call

The clearest difference is in-app purchases: Pythagoras Interactive at none against BaseLearn by ChatStick's 1. Pythagoras Interactive also leads on ads (none vs shown) and iOS requirement (16.0 vs 26.0). On price 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

Both are free to download. BaseLearn by ChatStick sells 1 one-off in-app purchase. Pythagoras Interactive asks for nothing beyond the download.

Scorecard3 real differences · 6 level
Pythagoras Interactive versus BaseLearn by ChatStick: the parameters behind the verdict, then further details
ParameterPythagoras InteractiveBaseLearn by ChatStick
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 weeks—
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better26.0
Further details — not scored
Size1 MB10 MB
Age rating4+4+
DeveloperALAN PETERSONChatStick Company Limited

In-app purchases

None

Pythagoras Interactive

No in-app purchases

1 purchases

BaseLearn by ChatStick

One-time1
  • BaseLearn Premium Unlock$1.99

Questions

Is Pythagoras Interactive free?
Pythagoras Interactive is free to download, with no in-app purchases.
Is BaseLearn by ChatStick free?
BaseLearn by ChatStick is free to download, with in-app purchases available.
Do Pythagoras Interactive or BaseLearn by ChatStick have ads?
BaseLearn by ChatStick shows ads; Pythagoras Interactive does not.

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