Cal C vs TapScan QR Code
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cal C
This app consolidates numerous essential calculators into a single, user-friendly interface. It offers tools for scientific, financial, programmer, graphing, and statistical calculations, alongside unit and currency conversions. Solve equations, plot graphs, and manage bills without needing multiple applications.
- Comprehensive calculator suite
- Unit and currency conversion
- Equation solver
- Graphing capabilities
- Financial and programmer tools
- History and favorites
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One app, every calculator you actually need — scientific, financial, programmer, graphing, statistics, matrix, plus unit and currency conversion. Stop downloading a new app every time the math changes. You already know what your phone's built-in calculator can't do. Cal C picks up where it stops: solve for x, convert 40 units, work out an EMI, plot a graph, split a dinner bill, turn hex into binary, or check a live currency rate — without leaving the app or hunting for a website. WHAT'S INSIDE Standard — everyday arithmetic, percentages and memory functions, with a history you can search. Scientific — trigonometry, powers, roots, factorials, logs, and constants including pi and e. Equation Solver — enter an equation and get the answer, not just the arithmetic. Financial — EMI, compound and simple interest, ROI, mortgage, tax and inflation calculators. Programmer — binary, octal, decimal and hexadecimal conversion plus full bitwise operations. Unit Converter — length, area, mass, temperature, speed, energy, pressure and more. Currency Converter — live exchange rates for global currencies, in a couple of taps. Graphing — plot and compare multiple equations visually. Matrix — determinants, inverses, addition and multiplication, worked out step by step. Statistics — mean, median, mode, variance and standard deviation from your own data sets. Shapes — volume and surface area for cylinders, cones, cuboids, pyramids and more. Date Calculator — days between two dates, or add and subtract time from any date. Tip Splitter — work out the tip and divide the bill without the awkward silence. Health — BMI and other everyday body metrics. Favourites & Smart Search — pin the tools you use most, or type what you need and jump straight to it. History — every calculation saved and searchable, so you never redo work you've already done. WHO IT'S FOR Students working through coursework. Engineers and developers who need hex and bitwise on hand. Anyone comparing a loan against a lease, or converting currency before a trip. Whoever gets handed the bill at dinner. People who just want a percentage without opening a browser. WHY IT STAYS ON YOUR HOME SCREEN - Every tool one tap away — pin favourites, or search by name - Fast and accurate, with a clean layout that doesn't fight you - Works offline for everything except live currency rates - One download instead of five single-purpose calculators Your everyday calculator, reimagined. Terms & Conditions: https://obsidian-tin-ee3.notion.site/Terms-and-Conditions-32009a72d7508089a28add4379351d81?pvs=73 Currency conversion in Cal C uses exchange rate data from the Frankfurter API, which provides foreign exchange reference rates published by the European Central Bank.
TapScan QR Code
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Are you looking for a faster, smarter, and more secure way to handle QR codes? TapScan QR Code is designed to be the only QR toolkit you’ll ever need. Whether you need to scan a code from a printed flyer or extract data from a screenshot in your photo gallery, TapScan makes it effortless. EXTRACT QR CODES FROM IMAGES & PHOTOS Traditional scanners require a physical code to scan. With TapScan, you can pull information directly from your Photo Library. Snap or Save: Take a photo or save a screenshot of a QR code. Instant Extraction: TapScan identifies and extracts data from images in seconds. No Camera Needed: Perfect for when you find a code online and want to scan it without using another device. ADVANCED QR CODE GENERATOR Create professional-grade QR codes for personal or business use. WiFi QR Generator: Create a code for your home WiFi. Guests just scan to join—no more typing long passwords. Social & Links: Generate codes for WhatsApp, Facebook profiles, URLs, and vCards. Pre-filled Messages: Create WhatsApp QR codes with custom messages ready to be sent. PREMIUM CUSTOMIZATION & BRANDING Stand out with QR codes that match your style or brand. Add Your Logo: Embed a custom image or logo in the center of your QR code. Shape & Color Control: Choose between squares, dots, or rounded modules. Pick any color to match your brand identity. High Resolution: Crisp, high-quality images ready for digital sharing or printing. PRIVACY AND SECURITY FIRST: Your data belongs to you. We built TapScan with a "Privacy First" mindset. FaceID/Passcode Lock: Secure your entire scanning and generation history behind biometric authentication. Local Processing: All scanning and extraction happens on your device. We never upload your photos or data to external servers. History Management: Easily review, copy, or delete your past scans. Download TapScan QR Code today and transform how you interact with the digital world!
Screenshots
Verdict
The clearest difference is iOS requirement: Cal C at 15.0 against TapScan QR Code's 18.2. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Cal C ships an update every 10 days, TapScan QR Code fortnightly. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.
| Parameter | Cal C | TapScan QR Code |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (6 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 10 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 35 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Pinki . | SHAMMY KADESA |
In-app purchases
Cal C
No in-app purchases
TapScan QR Code
No in-app purchases
Questions
Is Cal C free?
Is TapScan QR Code free?
Do Cal C or TapScan QR Code have ads?
Which is updated more often, Cal C or TapScan QR Code?
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