ExtCalc vs Professional Translator
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
Professional Translator
This app offers real-time translation for over 100 languages through text, voice, and OCR modes. It also includes VPN servers for browsing and entertainment.
- Real-time translation
- 100+ languages supported
- Text, voice, and OCR translation modes
- Camera text extraction
- Text-to-voice output
- VPN server access
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Professional Translator is the must-have app if you need to switch between languages frequently or have a huge interest in new languages. We also provide VPN Servers for users, users can surf and entertain. Basic Features: Support real-time translation in more than 100 languages. Various translation modes, including text, voice, and OCR. Simple and beautiful translation interface. VPN Server: Proxy Servers provided. Text to Text: Easily enter text to translate into several languages. Voice-to-Voice: Speak in your language and get the corresponding translation. Camera to Text: Advanced scanning technology easily extracts text from pictures and translates them. Text-to-Voice: You can choose to have your translated text output by voice.
Screenshots
Verdict
The clearest difference is in-app purchases: Professional Translator at none against ExtCalc's 2. Professional Translator also leads on update cadence (weekly vs every 5 months) and review sentiment (20% vs 0%). ExtCalc's advantage is ads (none vs shown) and device support (6 vs 2). On price 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. Professional Translator asks for nothing beyond the download.
ExtCalc ships an update every 5 months, Professional Translator weekly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | ExtCalc | Professional Translator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.6 (31 ratings) — better |
| Positive reviews | 0.0% of reviews | 20.0% of reviews — better |
| Number of ratings | — | 31 — better |
| Update frequency | Every 5 months | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro — better | iPhone, iPod |
| Requires iOS | 18.7 | 13.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 83 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthias Weber | Starrhyme Technology |
Customer experience
ExtCalc
Professional Translator
In-app purchases
ExtCalc
- Yearly Subscription$4.991 Year
- Printing$0.99
Professional Translator
No in-app purchases
Questions
Is ExtCalc free?
Is Professional Translator free?
Do ExtCalc or Professional Translator have ads?
Which is updated more often, ExtCalc or Professional Translator?
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