Calculator Pro vs Calculator Express with Notes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator Pro
Perform basic and complex calculations on your Apple Watch and iPhone. Access a history of your equations and edit them. Upgrade for advanced features like currency conversion and ad-free experience.
- Basic & Complex Calculations
- History Records
- Edit Equation
- Dark Mode Support
- Currency Converter
- Fraction Calculator
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Do the math on your Apple Watch with the Calculator Pro. Support on iPhone & Apple Watch. WHY YOU’LL LOVE THE WATCH CALCULATOR • Extended Apple Watch App: Basic & Complex Calculation with History records • Basic & Scientific Calculator on iPhone • History Tab • Simple Design • Edit Equation • Support Dark Mode GET FULL ACCESS & SOLVE EVERYDAY CALCULATIONS Upgrade to a Premium Membership and receive the following ongoing value: • Ad-Free • Fraction Calculator • Currency Converter • Premium Customer Support Premium Subscriptions: • Purchased user has unlimited access to Calculator Pro: Math On Watch • User can subscribe lifetime (USD 9.99$). • Free users can only use those services with limited quota per day. • Payment will be charged to iTunes Account at confirmation of purchase. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases to that publication, where applicable. Contact Us: support@vulcanlabs.co We would love to receive all your feedback to improve our app. Terms of Use: http://vulcanlabs.co/index.php/terms-of-use/ Privacy Policy: http://vulcanlabs.co/index.php/privacy-policy/
Calculator Express with Notes
A beautifully designed utility app offering six essential tools, including currency, unit, and percentage converters, plus calculators for BMI, tips, and world time. Users can customize the app's appearance and manage calculation history with notes and labels.
- Currency converter
- Unit converter
- Percentage calculator
- BMI calculator
- Tip calculator
- World time converter
- Customizable appearance
- Calculation history with notes
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Hello there! This is Calculator Express. We are introducing you a beautifully designed app, that includes 6 handy tools: - Currency converter - Unit converter - Percentage calculator (hey marketers, this feature is for you) - BMI calculator - Tip calculator - World time converter (and many more tools will be added very soon, stay tuned!) You can customise Calculator Express as you wish - color, fonts, app icon, buttons background and even more! But what else? Guys, we think that calculation history is a very important feature and that's why we decided to make it more convenient - we added labels and notes to your calculations. Pin, copy and share. We think our app will be a great companion and just a handy simple tool. Privacy policy: https://calculator.express/assets/privacy.html Terms of Use: https://calculator.express/assets/terms.html
Screenshots
Verdict
The clearest difference is rating: Calculator Pro at 5.0 against Calculator Express with Notes's 4.5. Calculator Pro also leads on ads (none vs shown) and review sentiment (100% vs 69%). Calculator Express with Notes's advantage is ratings volume (48 vs 4). On price, update cadence, 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
Both are free to download. Calculator Pro sells 3 in-app purchases, starting at $1.99 per 7 days and Calculator Express with Notes sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Calculator Pro holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Calculator Express with Notes has 48 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of Calculator Pro's written reviews are positive against 69% of Calculator Express with Notes's.
Calculator Pro ships an update every 3 weeks, Calculator Express with Notes monthly. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.
| Parameter | Calculator Pro | Calculator Express with Notes |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.5 (48 ratings) |
| Positive reviews | 100.0% of reviews — better | 69.2% of reviews |
| Number of ratings | 4 | 48 — better |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 11.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 69 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Vulcan Labs Company Limited | RAMAN KHVASHCHEUSKI |
Customer experience
Calculator Pro
Calculator Express with Notes
In-app purchases
Calculator Pro
- Weekly Premium3 Days trial$1.997 Days
- Monthly Premium3 Days trial$4.491 Month
- Lifetime Premium$49.99
Calculator Express with Notes
- Remove Ads -50% off$1.99
- Remove Ads$4.99
Questions
Is Calculator Pro free?
Is Calculator Express with Notes free?
Which has better reviews, Calculator Pro or Calculator Express with Notes?
Do Calculator Pro or Calculator Express with Notes have ads?
Which is updated more often, Calculator Pro or Calculator Express with Notes?
Other comparisons
