Comparison

calcMod vs MoleCube 3D

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

Head to head
About

calcMod

Features
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What are all the digits of the factorial of 69 and how many digits ? What is the gogol number ? How many integers of the form 10^n+1 are prime ? (like 101) Want to know if a big integer is prime ? The change mod function indicates when the number is prime. Want to know the divisors of an integer ? A prime divisor has no inverse modulo this integer. This is a modulo calculator overpowering almost limitless! (only display is limited !) With modulo gogol, calculus are exact until 100 digits ! The "n!" button calculates the factorial of an integer from 0 to 2000 (v2.0). Factorial are limited to factorial of 2000! The "change mod" (change modulo) function indicates when the modulo is prime. There are no limit to the modulo except the display. The "mod gogol" button set a modulo to 10^100 (gogol number). You can stoke one number and recall it when you want. The "Mod" operation indicates the residue modulo N. The exp function allow modular exponentiation (as + - *) The "INV" function calculates the inverse of an integer modulo N. This app is intended for both mathematics teachers and/or their students, or if you are interested in the beauty of numbers. Enjoy calcMod-ProX ! Les commentaires sont disponibles en français (réglages).

About

MoleCube 3D

This app combines the logic of Sudoku with the spatial challenge of a Rubik's Cube. Arrange colored spheres on each side of a 3D cube so that each side displays all nine colors. Offers realistic graphics and intuitive swipe controls for an engaging puzzle experience.

Highlights
  • 3D realistic graphics
  • Intuitive swipe controls
  • Undo last action
  • Tilt to change perspective
  • Two 3D styles (spherical/square)
  • Zoom and brightness adjustment
  • Two cube sizes (3x3x3, 2x2x2)
Features
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# What is MoleCube? "MoleCube = Sudoku puzzle + Rubik's Cube", roughly. MoleCube (also called Nine-Color Cube, Ball Sudoku Cube), combines the logic of "Sudoku + Rubik’s cube". Each of the cube’s six sides is comprised of a 3x3 grid of colored spheres. To solve the Molecube, arrange the spheres so that each side contains all nine colors. # How to Play This app presents the cube in 3D with a smooth sliding operation, and you can change the perspective by tilting the phone, just like playing a real Rubik's cube. Swipe across the cube to rotate one layer, and swipe across the blank area to rotate the whole cube. To start playing the game, click the scramble button and the stopwatch will start. # The Goal of Game Molecube is composed of 9 different colors of spheres distributed over 6 sides of a cube. Instead of arranging the colors by side like in a Rubik’s Cube, your goal is to have one piece of every color represented on each side. It’s a problem that’s easier to describe than to solve. This hybrid puzzle blends the spatial challenge of a Rubik’s Cube with the logical test of a Sudoku puzzle. In the same way that a Sudoku puzzle requires you to place nine unique single-digit numbers on each line of a grid, Molecube requires you to line up one of each color on each side of a cube. # FEATURES - 3D realistic graphics makes you feel playing with real cube. - Swipe the cube with your finger to rotate the layer of cube. Swipe through the blank area to rotate the cube. - You can also tap the Undo button to undo the last action. - Tilt the phone horizontally or vertically to change the viewing angle of the Rubik's Cube. - Two 3D styles: spherical or square (you can change the style at any time during the game). - Zoom in/out the scene; change the scene brightness. - Two visual effect qualities can be selected: * high VFX for realistic 3D graphics while low VFX for power-savings. - Keyboard is provided as well. - Two sizes of molecube: 3x3x3 and 2x2x2 2x2x2 molecube is much easier for beginners. # MoleCube v.s. Rubik's Cube - What is the difference between a Molecube and a Rubik's Cube? Their goal configurations are different: the Molecube wants one ball of each color on each face, while the Rubik's cube wants each face to be all the same color. There are nine colors on the Molecube, but only six on the Rubik's cube. The Sudoku Cube is similar to the MoleCube in that the objective of the Sudoku Cube is to arrange it such that each face contains each number (1 to 9) exactly once. - Is MoleCube harder than a Rubik’s cube? Molecube isn’t meant to be harder or easier, just a different type of challenge. That being said, it does have significantly fewer possible permutations than a 3x3 Rubik’s Cube. It also has 80 possible solutions instead of the traditional 1. Suggestions or questions? Feel free to email: zhaoxiaojian@hotmail.com

Screenshots

calcMod4 screens
MoleCube 3D4 screens

Verdict

The call

The clearest difference is price: MoleCube 3D at Free against calcMod's $0.99. On update cadence, 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

MoleCube 3D is free to download; calcMod costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

calcMod ships an update every 6 days, MoleCube 3D every 5 days. The most recent releases landed on October 6, 2026 and September 20, 2026 respectively.

Scorecard1 real difference · 8 level
calcMod versus MoleCube 3D: the parameters behind the verdict, then further details
ParametercalcModMoleCube 3D
Price$0.99Free — better
Rating—3.7 (3 ratings) — better
Number of ratings—3 — better
Update frequencyEvery 6 daysEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.014.0 — better
Further details — not scored
Size1 MB13 MB
Age rating4++4
DeveloperAlain Cardinaux小健 赵

In-app purchases

None

calcMod

No in-app purchases

None

MoleCube 3D

No in-app purchases

Questions

Is calcMod free?
calcMod costs $0.99, with no in-app purchases.
Is MoleCube 3D free?
MoleCube 3D is free to download, with no in-app purchases.
Do calcMod or MoleCube 3D have ads?
Neither calcMod nor MoleCube 3D shows ads.
Which is updated more often, calcMod or MoleCube 3D?
calcMod ships an update every 6 days, and MoleCube 3D every 5 days. Most recently, calcMod was updated on October 6, 2026 and MoleCube 3D on September 20, 2026.

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