Comparison

Quadratic Master vs DVIS

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

Head to head
About

Quadratic Master

This app helps users solve and learn about quadratic equations, inequations, and functions. It offers tools for students and professionals, including solvers, formulas, and visual aids like 3D parabola models. Share solutions and explore function graphs with this educational math tool.

Highlights
  • Quadratic equation solver
  • Quadratic inequation solver
  • Quadratic function solver
  • 3D rotating parabola model
  • Graph mixer
  • Detailed solution explanations
Features
Read full description

Quadratic Master is the best app for solving and learning quadratic equations, inequations, and functions on your iPhone. Whether you are a high-school student currently learning about quadratics in your math class or somebody who needs to solve quadratic functions on a regular basis, Quadratic Master is for you. Main benefits: • Save time on your math homework • Learn about quadratics in just a fraction of time • Share solutions with your classmates. Free version offers: • Quadratic equation solver (roots, discriminant, factorization) • Formulas and guide for manually solving quadratic equations • Quadratic inequation solver Quadratic function solver (Vertex form) 3D rotating model of parabola for better understanding of quadratics in geometry Full version provides: • Detailed solution for quadratic equations • Quadratic function solver - general and factored form • Explanations and formulas for all quadratic function properties • Quadratic inequation solver with ≥ and ≤ inequality • Graph mixer - the perfect tool to play with and explore quadratic function graphs Rapid-fast solving with Single-digit input mode The full version is available for a small one-time fee. - - - - - I’ve built Quadratic Master back in 2009 when I was in high school and I was learning about quadratic equations in my math class. It is the first app I’ve ever built, and at the risk of sounding cheesy - it still holds a special place in my heart. Even though it was never a significant moneymaker, I’ve kept it updated throughout the years. And I’m happy to say that it has attained over 95.000 downloads to date. If you enjoy using the app, please consider buying the full version. Thank you. - Lukas Petr, author of Quadratic Master

About

DVIS

Features
Read full description

encouraging kids to experience a sense of unity and national integrity. enabling our students to respect and be aware of our heritage and culture. encouraging a mindset and attitude of knowledge. We take pride in having educated thousands of talented kids over the past few years and in having contributed to their success tales. We are pleased to contribute in a noble and humble manner to the process of nation-building.

Screenshots

Quadratic Master4 screens
DVIS4 screens

Verdict

The call

The clearest difference is in-app purchases: DVIS at none against Quadratic Master's 1. DVIS also leads on iOS requirement (13.0 vs 16.0). On price, ads 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. Quadratic Master sells 1 one-off in-app purchase. DVIS asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Quadratic Master versus DVIS: the parameters behind the verdict, then further details
ParameterQuadratic MasterDVIS
PriceFreeFree
Rating4.6 (333 ratings) — better—
Positive reviews73.5% of reviews—
Number of ratings333 — better—
Update frequencyEvery 5 months—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size4 MB22 MB
Age rating4+17+
DeveloperLukas PetrWEBSPRUCE

Bugs and requests

Quadratic Master

Reported bugs

10 issues
  • Input keypad incomplete after iOS update
  • App not working/unusable
  • Cannot enter problems
  • Not showing in app library
  • Cannot change addition to subtraction
Show 5 more
  • Flipped positive and negative of a specific factor
  • App crashes when trying to open
  • Wouldn't let me open the app
  • Pictures are just for show
  • Does not graph quadratic functions

Requested features

3 requests
  • Ability to use large decimals/scientific notation
  • Cooler icon
  • Change standard formula to vertex form

DVIS

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Quadratic Master

One-time1
  • Full version$3.99
None

DVIS

No in-app purchases

Questions

Is Quadratic Master free?
Quadratic Master is free to download, with in-app purchases available.
Is DVIS free?
DVIS is free to download, with no in-app purchases.
Do Quadratic Master or DVIS have ads?
Neither Quadratic Master nor DVIS shows ads.

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