Comparison

calcMod vs Drivisa

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

Head to head
About

calcMod

Features
Read full description

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

Drivisa

This platform connects driving instructors and trainees in Canada, offering a marketplace for booking lessons, car rentals, and BDE courses. It aims to simplify driving education with a focus on safe practices and flexible scheduling for both parties.

Highlights
  • Online driving school platform
  • Book driving lessons and car rentals
  • Compare and schedule with instructors
  • Track training progress
  • Secure payment system
  • BDE course booking
Features
Read full description

We are bringing a revolutionary change to the driving learning industry in Canada. Drivisa is complete online driving school platform for instructors and trainees. It is a revolutionary marketplace platform for driving lessons, car rentals, BDE courses where trainees can choose, and book their instructors. Drivisa app was established with the intention of empowering and educating communities about safe driving practices. Drivisa promises to simplify driving instruction methods so that students may enjoy picking up abilities they'll use for the rest of their lives. Trainees can select their instructor via the Drivisa app based on factors including availability and geography. Additionally, individuals can compare driving schools and schedule classes to improve their driving abilities. New students may be accepted by instructors depending on their availability, location, and potential income. Flexible and practical Both instructors and students can simply keep tabs on the training process at any time and from any location. Drivisa uses a secure system to make sure that personal and financial information is not transferable. We pledge to make driving teaching methods simpler that enables the trainee to genuinely enjoy learning driving skills that they will use for the rest of their lives. Drivisa provides a cost-effective and flexible way to purchase driving lessons. Trainee gets credits when he completes the payment by credit card. Credits can be used towards any package booking. Payment for road tests, BDE course and private lessons booking is done from within the app itself. As per the government rule we are giving physical driving training to our trainee by certified instructor. No, users don’t have to pay any fees to create an account. for more information just go through https://drivisa.com

Screenshots

calcMod4 screens
Drivisa4 screens

Verdict

The call

The clearest difference is price: Drivisa at Free against calcMod's $0.99. calcMod's advantage is ads (none vs shown) and update cadence (every 6 days vs every 3 weeks). On 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

Drivisa 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, Drivisa every 3 weeks. The most recent releases landed on September 19, 2026 and September 18, 2026 respectively.

Scorecard4 real differences · 6 level
calcMod versus Drivisa: the parameters behind the verdict, then further details
ParametercalcModDrivisa
Price$0.99Free — better
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 6 days — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size1 MB63 MB
Age rating4+4+
DeveloperAlain CardinauxDrivisa Corp

In-app purchases

None

calcMod

No in-app purchases

None

Drivisa

No in-app purchases

Questions

Is calcMod free?
calcMod costs $0.99, with no in-app purchases.
Is Drivisa free?
Drivisa is free to download, with no in-app purchases.
Do calcMod or Drivisa have ads?
Drivisa shows ads; calcMod does not.
Which is updated more often, calcMod or Drivisa?
calcMod ships an update every 6 days, and Drivisa every 3 weeks. Most recently, calcMod was updated on September 19, 2026 and Drivisa on September 18, 2026.

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