Calx vs CALC 1 Programmable Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calx
This calculator app utilizes Reverse Polish Notation (RPN) for efficient calculations by manipulating numbers on a stack. It offers a guided tutorial, gestural interaction, multiple keypads with various functions, and customization options for fonts and colors.
- Reverse Polish Notation (RPN)
- Gestural interaction
- Multiple keypads (basic, scientific, statistical)
- Customizable fonts and colors
- Guided tutorial
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CALX is an RPN calculator — a calculator designed to work with a list of numbers. This means that instead of just typing an equation into your calculator, you push numbers onto a stack, and then apply operations to the lowermost numbers in the stack. It's bizarre, but it makes sense once it clicks. If this all sounds confusing, don't worry! CALX comes with a guided tutorial which will get you up to speed in three minutes. Features: • Gestural interaction: Manipulate your data with simple, intuitive gestures. • Multiple keypads: CALX features an array of basic, scientific, and statistical functions. • Customization: Select from different fonts and colours to find a combination that works for you.
CALC 1 Programmable Calculator
Create custom calculators with AI-generated JavaScript functions for precise calculations and data visualization. Assign programs to keys and manage data efficiently. Offers multiple calculation modes and extensive documentation.
- AI-assisted JavaScript function creation
- Customizable function calculators
- Data visualization and plotting
- Programmable calculator keys
- List and data management
- Multiple calculation modes (algebraic, RPN)
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Customize your calculators for quick and accurate calculations with CALC 1 - the ultimate programmable calculator for your iPhone or iPad. * Harness the power of AI: Ask your favorite AI tool to create JavaScript functions for you * Effortlessly create Function Calculators: Simply copy the AI-generated function code to your clipboard and tap the add button in the "Function Calculators" list - CALC 1 will automatically create a new Function Calculator (Always test the Function Calculator to verify the function is as you intended) * Execute functions with ease: Key in the parameter values to run the function and get instant results * Perform breakeven analysis: Function Calculators can solve for any non-integer parameter * Visualize data effortlessly: Create plots as a function of any parameter by entering the min and max values * Assign programs to individual calculator keys for personalized functionality * Create custom calculators by copying and pasting keys from pre-built calculators * Automatically generate keys from entered expressions for effortless reuse * CALC 1 has over 100 built-in functions that you can use from your JavaScript code * Manage lists and data with the List Manager and Data Manager for quick and accurate importing * Choose between algebraic, chain, or RPN calculation modes with an automatic stack * Access the CALC 1 documentation site with over 100 pages of searchable content and video tutorials, easily accessible through help links (?) within the app Whether you're a student, professional, or simply someone who appreciates the power of customization and AI-assisted productivity, CALC 1 offers a consistent and efficient solution to a wide range of problems. Upgrade your calculation experience with CALC 1 today!
Screenshots
Verdict
The clearest difference is price: Calx at $0.99 against CALC 1 Programmable Calculator's $9.99. Calx also leads on rating (5.0 vs 4.6) and iOS requirement (12.0 vs 16.1). CALC 1 Programmable Calculator's advantage is update cadence (every 5 weeks vs every 24 months) and ratings volume (9 vs 2). On review sentiment, ads, in-app purchases and monetization model 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
Calx costs $0.99 and CALC 1 Programmable Calculator $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Calx holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 2 and 9 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Calx ships an update every 24 months, CALC 1 Programmable Calculator every 5 weeks. The most recent releases landed on August 12, 2026 and September 9, 2026 respectively.
| Parameter | Calx | CALC 1 Programmable Calculator |
|---|---|---|
| Price | $0.99 — better | $9.99 |
| Rating | 5.0 (2 ratings) — better | 4.6 (9 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 9 — better |
| Update frequency | Every 24 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.1 |
| Further details — not scored | ||
| Size | 4 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Clelland | CalcFxC, LLC |
Customer experience
Calx
CALC 1 Programmable Calculator
In-app purchases
Calx
No in-app purchases
CALC 1 Programmable Calculator
No in-app purchases
Questions
Is Calx free?
Is CALC 1 Programmable Calculator free?
Which has better reviews, Calx or CALC 1 Programmable Calculator?
Do Calx or CALC 1 Programmable Calculator have ads?
Which is updated more often, Calx or CALC 1 Programmable Calculator?
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