ExtCalc vs MD Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ExtCalc
This scientific calculator offers a colorized text view for formulas, allowing for individual calculation sheets and easy memorization of results. It features a customizable constants pool, VAT calculator, and cloud synchronization for seamless use across devices. Accessibility and team collaboration are also emphasized.
- Colorized formula view
- Individual calculation sheets
- Memorize results
- Customizable constants pool
- VAT calculator
- Cloud synchronization
- Apple Watch app
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ExtCalc is an innovative scientific calculator that makes operating computations easy. It shows your whole formula in a colorised text view. You can have different calculation sheets for different formulas or you just use one sheet for all your formulas. Deletion and memorizing results are integrated as well. Last, but not least, it includes a customizable constants pool and a VAT calculator. All nifty features in a short list: * Individual calculation sheets, with the possibility to print them * Color highlighting * Memorizing results, e.g. via the ANS button and through the calculation sheets, get old values by tapping on them in the sheet * Many functions, even in portrait mode * Grouping (brackets) * Error proof, you can't input formulas that would lead to errors * Constants pool, easily customizable * iCloud support for synchronization between devices * VAT calculator * Apple Watch app * Cloud synchronisation to stay up-to-date on all devices * AR scene * Print calculation sheets * Dark Mode * Strong focus on accessibility * SharePlay to work in a team Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://develicious-studios.de/privacy.html
MD Calculator
Perform calculations directly from your Home Screen using interactive widgets. Customize your experience with a variety of themes, including nostalgic skeuomorphic designs.
- Home Screen Calculator Widget
- iOS 17 Interactive Widget Technology
- Customizable Themes
- Skeuomorphic Themes
- On-the-go Computations
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Introducing MD Calculator Widget - a beautifully crafted calculator widget for on-the-go computations. Leverage the power of iOS 17's latest Interactive Widget technology, allowing for seamless calculations directly from your Home Screen. Tailor your experience with our rich selection of customizable themes, catering to your unique style and preference. Dive into our meticulously designed skeuomorphic themes and relish the nostalgic feel of a physical calculator right on your device.
Screenshots
Verdict
The clearest difference is review sentiment: MD Calculator at 60% against ExtCalc's 0%. MD Calculator also leads on update cadence (fortnightly vs every 5 months). ExtCalc's advantage is device support (6 vs 3). On price, 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
Both are free to download. ExtCalc sells 2 in-app purchases, starting at $4.99 per year and MD Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
ExtCalc ships an update every 5 months, MD Calculator fortnightly. The most recent releases landed on September 9, 2026 and September 3, 2026 respectively.
| Parameter | ExtCalc | MD Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (78 ratings) — better |
| Positive reviews | 0.0% of reviews | 59.6% of reviews — better |
| Number of ratings | — | 78 — better |
| Update frequency | Every 5 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro — better | iPhone, iPad, Vision Pro |
| Requires iOS | 18.7 | 17.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthias Weber | MD Studio |
Customer experience
ExtCalc
MD Calculator
In-app purchases
ExtCalc
- Yearly Subscription$4.991 Year
- Printing$0.99
MD Calculator
- MD Calculator Premium$0.99









