1Calc vs MSRX AI Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
1Calc
This app offers a streamlined calculator experience with a history feature to review past calculations. It boasts a modern design with customizable themes and ensures a premium user experience by being ad-free for premium users. Enhanced percentage calculation logic provides accurate results.
- History functionality
- Customizable themes
- Ad-free premium experience
- Accurate percentage calculation
- Smart and modern design
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- Very simple but highly efficient - History functionality, view your past calculations - Lots of theme to match your personality - No Ads for premium user experience - Updated business logic for percentage (%) calculation - Percentage Calculation now comply with google web calculator - Smart and modern design style - 1Calc is a pro grade calculator plus lots of functionality. Privacy Policy: https://izen.fun/apps/app_data_privacy_policy.html Terms of Service: https://izen.fun/apps/app_data_terms_of_service.html If you need any help, please contact us asimoxo@outlook.com
MSRX AI Calculator
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MSRX AI Calculator answers everyday maths the way you would ask it out loud, and shows you how it got there. Type or dictate a question — "split an 84.50 bill with a 20% tip between three", "30% off 149", "add 8.5% tax to 60", "12 km to miles", "300000 loan at 6.5% over 25 years". You get the number, a plain-English answer, and the working, so you can check it rather than trust it. EXACT BY DESIGN The intelligence reads your question. A separate maths engine does the arithmetic. Every figure on screen comes from that engine, never from a language model guessing at digits — so a tip split lands on 28.32, not a plausible 28.30. A TAPE, NOT A BOX The display keeps the roll. Recent calculations sit above the current line, ruled off like a printing calculator, and any of them can be tapped to reuse. Select several in History to read their running total, or export the roll as a PDF. A PROPER CALCULATOR UNDERNEATH • Standard and scientific keypads • Trigonometry in degrees or radians, inverse and hyperbolic functions • Logarithms, roots, powers, factorials, brackets and constants • Memory keys, a reusable last answer, and live results as you type • Full hardware keyboard support on iPad NAME THE FIGURES YOU REUSE Type tax = 8.5 once, then use "tax" in any calculation. Change it and every expression that reads it follows. CONVERTER Length, mass, temperature, volume, area, speed, time, data, angle — and currency, using daily reference rates, with the source and publication date always on screen. ASK FROM ANYWHERE Siri, Spotlight and Shortcuts answer without opening the app. A widget keeps the last result on your Home or Lock Screen, and a Control Centre button opens the calculator ready for a question. HISTORY THAT REMEMBERS Every calculation and answer is kept, searchable and pinnable. Tap any entry to load it back into the keypad. PRIVATE BY DEFAULT No account, no sign-up, no advertising, no analytics, no tracking. Your keypad calculations, named values and history are local to your device. Newer Phones answer plain-language questions on-device too. On older Phones a built-in offline solver handles the everyday ones, and only the questions it cannot parse are sent — as text alone, with no identity attached — to an AI service to be answered. Designed and built by MSRX.
Screenshots
Verdict
The clearest difference is in-app purchases: MSRX AI Calculator at none against 1Calc's 3. MSRX AI Calculator also leads on ads (none vs shown). 1Calc's advantage is update cadence (fortnightly vs every 6 months) and iOS requirement (18.0 vs 26.2). On price 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. 1Calc sells 3 in-app purchases, starting at $0.99 per month. MSRX AI Calculator asks for nothing beyond the download.
1Calc ships an update fortnightly, MSRX AI Calculator every 6 months. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.
| Parameter | 1Calc | MSRX AI Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly — better | Every 6 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 6 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Asim Roy | Mrinal Singh Raja |
In-app purchases
1Calc
- Monthly$0.991 Month
- Yearly$3.991 Year
- Lifetime$8.99
MSRX AI Calculator
No in-app purchases









