Astrodate vs Quadratic Formula Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Astrodate
This app provides the current date and time in multiple specialized formats, including Julian Date, Modified Julian Date, and Truncated Julian Date. It also offers standard Gregorian ISO 8601 formats, eliminating the need for manual calculations. Ideal for astronomers and those requiring precise timekeeping across various systems.
- Julian Date conversion
- Modified Julian Date
- Truncated Julian Date
- Dublin Julian Date
- Gregorian ISO 8601 format
- Astronomical date calculations
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Astrodate provides the current date and time in Julian Date, Modified Julian Date, Truncated Julian Date, and Dublin Julian Date as well as normal Gregorian ISO 8601 numeric date time formats. This is particularly useful for astronomers and others who need these various date formats, and don't want to do the calculations.
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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Solve any quadratic equation the moment you type it. Enter a, b and c and the roots appear instantly, along with the discriminant. Real or imaginary, whole numbers or decimals, Quadratic handles it. FREE • Answers appear as you type, no solve button needed • Real and complex (imaginary) roots • The discriminant for every equation • A clean calculator keypad in light and dark mode QUADRATIC PRO, a one-time purchase • Step-by-step working for every equation • Three methods: the quadratic formula, completing the square and factoring • A graph of the parabola with the roots, vertex and y-intercept labelled • Vertex form, factored form, axis of symmetry and more Great for checking homework, studying for algebra tests, or understanding why the answer is what it is.
Screenshots
Verdict
The clearest difference is price: Quadratic Formula Calculator at Free against Astrodate's $0.99. Quadratic Formula Calculator also leads on rating (4.7 vs 1.0) and ratings volume (71 vs 1). Astrodate's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence 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
Quadratic Formula Calculator is free to download; Astrodate costs $0.99 up front. Quadratic Formula Calculator sells 1 one-off in-app purchase. Astrodate asks for nothing beyond the download.
Quadratic Formula Calculator holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Quadratic Formula Calculator has 71 ratings behind it against 1, so its average is the more settled of the two.
Astrodate ships an update every 12 months, Quadratic Formula Calculator every 9 months. The most recent releases landed on November 6, 2026 and November 11, 2026 respectively.
| Parameter | Astrodate | Quadratic Formula Calculator |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 1.0 (1 ratings) | 4.7 (71 ratings) — better |
| Positive reviews | — | 75.0% of reviews |
| Number of ratings | 1 | 71 — better |
| Update frequency | Every 12 months | Every 9 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Flying Titans, Inc. | Edward Prokopik |
Customer experience
Astrodate
Quadratic Formula Calculator
In-app purchases
Astrodate
No in-app purchases
Quadratic Formula Calculator
- Pro Mode$1.99
Questions
Is Astrodate free?
Is Quadratic Formula Calculator free?
Which has better reviews, Astrodate or Quadratic Formula Calculator?
Do Astrodate or Quadratic Formula Calculator have ads?
Which is updated more often, Astrodate or Quadratic Formula Calculator?
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