Comparison

Collatz Explorer vs Guess the Graph

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

Head to head
About

Collatz Explorer

Explore mathematical sequences with this app. It calculates the standard Collatz sequence for any number you enter and can also display sequences from an alternative 3x-1 function.

Highlights
  • Calculate Collatz sequences
  • Calculate 3x-1 function sequences
  • Input any number
  • Visualize sequences
Features
Read full description

A fun app that is capable of showing you any collatz sequence for a number that you input. Also capable of showing you any sequence from an alternate 3x-1 function for any number you input.

About

Guess the Graph

This educational app helps students understand mathematical functions by analyzing and reconstructing graphs. It offers interactive challenges with real-time visual feedback, supporting various difficulty levels and function types.

Highlights
  • Interactive graph analysis
  • Function reconstruction challenges
  • Real-time graph updates
  • Multiple difficulty levels
  • Custom math input interface
  • Built-in cheat sheet
Read full description

Graph Detective is an interactive educational app that helps students build intuition about mathematical functions by analyzing graphs instead of memorizing formulas. Players are shown a graph without its equation and are challenged to reconstruct the underlying function by adjusting parameters or entering expressions. As users experiment, the graph updates in real time, encouraging exploration and hypothesis testing. The app supports multiple difficulty levels: Easy: Explore quadratic and linear functions using sliders Medium: Enter full expressions including trigonometric, exponential, and logarithmic functions Hard: Analyze composite and piecewise functions with minimal hints Graph Detective features a custom math input interface optimized for learning, optional hardware keyboard support, and a built-in cheat sheet that explains common graph patterns and transformations.

Screenshots

Collatz Explorer4 screens
Guess the Graph4 screens

Verdict

The call

The clearest difference is rating: Guess the Graph at 5.0 against Collatz Explorer's 4.6. Guess the Graph also leads on device support (3 vs 1). Collatz Explorer's advantage is ratings volume (7 vs 1). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Guess the Graph holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Collatz Explorer has 7 ratings behind it against 1, so its average is the more settled of the two.

Scorecard3 real differences · 7 level
Collatz Explorer versus Guess the Graph: the parameters behind the verdict, then further details
ParameterCollatz ExplorerGuess the Graph
PriceFreeFree
Rating4.6 (7 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings7 — better1
Update frequencyMonthly—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPad, Mac — better
Requires iOS18.617.6 — better
Further details — not scored
Size1 MB4 MB
Age rating4+9+
DeveloperBerk SucuTianze Guan

Customer experience

Collatz Explorer

All ratings7 ratings
Positive85.7%
Neutral14.3%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Guess the Graph

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Collatz Explorer

No in-app purchases

None

Guess the Graph

No in-app purchases

Questions

Is Collatz Explorer free?
Collatz Explorer is free to download, with no in-app purchases.
Is Guess the Graph free?
Guess the Graph is free to download, with no in-app purchases.
Which has better reviews, Collatz Explorer or Guess the Graph?
Guess the Graph is rated higher. Collatz Explorer averages 4.6 out of 5 from 7 ratings, while Guess the Graph averages 5.0 from 1 ratings.
Do Collatz Explorer or Guess the Graph have ads?
Neither Collatz Explorer nor Guess the Graph shows ads.

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