Quadratic Formula Calculator vs ReUse App
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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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.
ReUse App
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ReUse is a circular recovery platform developed by Rekall Industries — purpose-built for organisations that generate high volumes of recoverable waste and need real-time visibility over their environmental performance. Whether you operate aged care facilities, hospitals, mining sites, hospitality venues, commercial kitchens, or corporate campuses, ReUse gives your team a live operational view of every processing unit deployed across your sites. THE PLATFORM ReUse connects directly to Rekall Industries' onsite processing units via IoT telemetry, capturing every batch, cycle, and gram of material processed — in real time, across every location. The platform turns raw operational data into enterprise-grade sustainability intelligence — giving facility managers, sustainability leads, and executive teams the metrics they need to report, improve, and prove their environmental performance. WHAT REUSE TRACKS • Kilograms of material diverted from landfill • CO₂-e avoided — Scope 3 Category 5 compliant • Truck movements and transport emissions eliminated • Circular recovery rate across your fleet • Machine utilisation, uptime, and service intervals • Energy consumption per unit and per site • Processing cycles and batch history • Regulated waste safely processed onsite • Recoverable material redirected to circular supply INDUSTRIES SERVED ReUse processing units and the ReUse platform serve a wide range of industries including: • Aged care and residential care • Hospitals and clinical environments • Mining and resource operations • Hospitality, hotels, and food service • Universities and institutional campuses • Government and defence facilities • Commercial and corporate environments ENTERPRISE REPORTING ReUse generates audit-ready ESG reports aligned with Australian and international reporting frameworks including NGER, GHG Protocol Scope 3, and ASX ESG disclosure standards. Export formatted PDF reports or CSV data sets directly from the app — suitable for board reporting, sustainability disclosures, procurement submissions, and regulatory compliance. MULTI-SITE MANAGEMENT Manage machines, monitor performance, and track ESG metrics across multiple facilities from a single platform. Role-based access ensures the right people see the right data — operators, site managers, and executives each get a view calibrated to their responsibilities. SERVICE AND MAINTENANCE Submit service requests directly from the machine detail page. Track request status in real time. Rekall Industries is notified immediately. ReUse is part of Rekall Industries' commitment to building decentralised circular recovery infrastructure — turning yesterday's waste into tomorrow's resources, one site at a time. Yesterday's Memories. Creating New Possibilities.
Screenshots
Verdict
The clearest difference is in-app purchases: ReUse App at none against Quadratic Formula Calculator's 1. ReUse App also leads on ads (none vs shown). On price, update cadence, 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
Both are free to download. Quadratic Formula Calculator sells 1 one-off in-app purchase. ReUse App asks for nothing beyond the download.
Quadratic Formula Calculator ships an update every 9 months, ReUse App every 5 months. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.
| Parameter | Quadratic Formula Calculator | ReUse App |
|---|---|---|
| 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 | Every 5 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 3 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | Edward Prokopik | Rekall Industries Limited |
In-app purchases
Quadratic Formula Calculator
- Pro Mode$1.99
ReUse App
No in-app purchases
Questions
Is Quadratic Formula Calculator free?
Is ReUse App free?
Do Quadratic Formula Calculator or ReUse App have ads?
Which is updated more often, Quadratic Formula Calculator or ReUse App?
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