# ExtCalc vs Professional Translator

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.

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.

## The numbers

| Metric | ExtCalc | Professional Translator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.6 (31 ratings)](https://appshunter.io/ios/app/professional-translator/id1630880715/reviews)** |
| Number of ratings | — | **31** |
| Positive reviews | 0.0% of reviews | **20.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 7 MB | 83 MB |
| Requires iOS | 18.7 | **13.0** |
| Devices | **iPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Matthias Weber](https://appshunter.io/developer/386132193) | [Starrhyme Technology](https://appshunter.io/developer/1588004071) |

## What reviewers say

### ExtCalc

[App page](https://appshunter.io/ios/app/extcalc/id386132190)

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.

**Highlights:** Colorized formula view, Individual calculation sheets, Memorize results, Customizable constants pool, VAT calculator, Cloud synchronization, Apple Watch app

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Subscription | $4.99 | per year |
| Printing | $0.99 | one-time |


### Professional Translator

[App page](https://appshunter.io/ios/app/professional-translator/id1630880715)

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.

**Highlights:** Real-time translation, 100+ languages supported, Text, voice, and OCR translation modes, Camera text extraction, Text-to-voice output, VPN server access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ExtCalc free?

ExtCalc is free to download, with in-app purchases available.

### Is Professional Translator free?

Professional Translator is free to download, with no in-app purchases.

### Do ExtCalc or Professional Translator have ads?

Professional Translator shows ads; ExtCalc does not.

### Which is updated more often, ExtCalc or Professional Translator?

ExtCalc ships an update every 5 months, and Professional Translator weekly. Most recently, ExtCalc was updated on October 23, 2026 and Professional Translator on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*