calcMod vs Univerzoom 3D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
calcMod
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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. Factorial are limited to factorial of 2000. The "change modulo" (change modulo) function indicates when the modulo is prime. There are no limit to the modulo except the display. The "modulo 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 "pow" 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-Blk ! Les commentaires sont disponibles en français (réglages).
Univerzoom 3D
Explore the vastness of the universe and the intricacies of the microcosmos with intuitive touch controls. Compare celestial bodies, everyday objects, and subatomic particles to grasp their true scale. Discover fascinating facts and learn about the cosmos and beyond.
- Intuitive gesture-based scaling
- Explore universe to atomic levels
- Compare sizes of diverse objects
- Learn facts about celestial bodies
- Text-to-Speech for facts
- External resource links
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This app gives you the superpower to scale the entire universe with a swipe of your fingers! Zoom out faster than light and see the cosmos from a whole new perspective. Compare the biggest objects to the tiniest and get a true sense of size. ZOOM • Control the scale with simple gestures • Zoom out billions of light years to the edge of the visible universe • Zoom in to microscopic dimensions, down to atoms and beyond • Easy for anyone to use — from kids to grandparents DISCOVER • Explore the scale of the universe and the microcosmos • Compare stars, planets, rockets, telescopes, animals, and everyday objects • Understand how our Sun measures up to other stars LEARN • Find stunning facts about selected objects, or let them be read aloud via Text-to-Speech • Access trusted external sources for deeper exploration • Perfect for curious minds, students, and science fans Download now and experience the universe like never before!
Screenshots
Verdict
The clearest difference is update cadence: Univerzoom 3D at every 2 months against calcMod's every 36 months. calcMod's advantage is price ($1.99 vs $2.99). On ads, in-app purchases, device support and iOS requirement 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
calcMod costs $1.99 and Univerzoom 3D $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
calcMod ships an update every 36 months, Univerzoom 3D every 2 months. The most recent releases landed on October 3, 2026 and October 17, 2026 respectively.
| Parameter | calcMod | Univerzoom 3D |
|---|---|---|
| Price | $1.99 — better | $2.99 |
| Rating | — | 4.8 (289 ratings) — better |
| Positive reviews | — | 97.3% of reviews |
| Number of ratings | — | 289 — better |
| Update frequency | Every 36 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 255 MB |
| Age rating | 4+ | 4+ |
| Developer | Alain Cardinaux | Linda Schnetzinger |
In-app purchases
calcMod
No in-app purchases
Univerzoom 3D
No in-app purchases
Questions
Is calcMod free?
Is Univerzoom 3D free?
Do calcMod or Univerzoom 3D have ads?
Which is updated more often, calcMod or Univerzoom 3D?
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