Quadratic Formula Calculator vs Drastic Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Quadratic Formula Calculator
This app simplifies solving quadratic equations by allowing users to input coefficients a, b, and c. It quickly displays the solutions for x, including support for imaginary numbers. Users can also switch between light and dark themes for a personalized experience.
- Input coefficients a, b, and c
- Displays solutions for x
- Supports imaginary number solutions
- Light and Dark modes
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The easiest quadratic formula solver. Simply enter the values for a, b, and c and the solutions for x will be displayed. - Supports imaginary numbers as solutions. - Light and Dark modes
Drastic Calc
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Drastic Calc brings the excitement of retro games to your daily calculations! Why just calculate when you can play? Experience the satisfying "click" and "bang" with every tap. 【Features】 • Authentic Retro Design: Classic 80s calculator aesthetic with solar panel styling. • Dynamic Sound Themes: Choose from Gunshot, Explosion, 8-bit Game sounds, and more. • Satisfying Feedback: Every button press feels like a game action. • Simple & Useful: Fully functional standard calculator for your daily needs. 【Sound Themes Include】 - Gunshot - Explosion - Retro Game (8-bit) - And more! Make your calculations drastic and fun!
Screenshots
Verdict
The clearest difference is in-app purchases: Drastic Calc at none against Quadratic Formula Calculator's 1. Drastic Calc also leads on update cadence (weekly vs every 9 months). Quadratic Formula Calculator's advantage is iOS requirement (15.0 vs 17.0). 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
Both are free to download. Quadratic Formula Calculator sells 1 one-off in-app purchase. Drastic Calc asks for nothing beyond the download.
Quadratic Formula Calculator ships an update every 9 months, Drastic Calc weekly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | Quadratic Formula Calculator | Drastic Calc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (71 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 71 — better | — |
| Update frequency | Every 9 months | Weekly — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 15 MB |
| Age rating | 4+ | 9+ |
| Developer | Edward Prokopik | Tatsuro Furuya |
In-app purchases
Quadratic Formula Calculator
- Pro Mode$1.99
Drastic Calc
No in-app purchases
Questions
Is Quadratic Formula Calculator free?
Is Drastic Calc free?
Do Quadratic Formula Calculator or Drastic Calc have ads?
Which is updated more often, Quadratic Formula Calculator or Drastic Calc?
Other comparisons
