# Scientific Calculator vs Blue2Factor

The clearest difference is in-app purchases: Blue2Factor at none against Scientific Calculator's 4. Blue2Factor also leads on rating (5.0 vs 4.8). Scientific Calculator's advantage is ratings volume (17 vs 1) and update cadence (monthly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Scientific Calculator sells 4 in-app purchases, starting at $0.99 per month. Blue2Factor asks for nothing beyond the download.

Blue2Factor holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Scientific Calculator has 17 ratings behind it against 1, so its average is the more settled of the two.

Scientific Calculator ships an update monthly, Blue2Factor every 2 months. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Scientific Calculator | Blue2Factor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (17 ratings)](https://appshunter.io/ios/app/scientific-calculator-calcon/id1582182462/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/blue2factor/id1601861068/reviews)** |
| Number of ratings | **17** | 1 |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 50 MB | 11 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Stage Coding](https://appshunter.io/developer/1637068135) | [Christopher McLain](https://appshunter.io/developer/1107662428) |

## What reviewers say

### Scientific Calculator

[App page](https://appshunter.io/ios/app/scientific-calculator-calcon/id1582182462)

This comprehensive utility app offers a powerful calculator and converter for everyday problems. It features a scientific calculator, over 150 specialized calculators, and unit/currency converters with offline capabilities. Users can also create custom calculators through a drag-and-drop interface.

**Highlights:** Scientific and simple calculator layouts, Over 150 specialized calculators, Unit and currency conversion, Offline currency converter, Drag-and-drop custom calculator creation, Step-by-step calculation solutions, Function graphing

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $0.99 | per month |
| Monthly subscription | $0.99 | per month |
| Annual subscription | $4.99 | per year |
| Annual subscription | $4.99 | per year |


### Blue2Factor

[App page](https://appshunter.io/ios/app/blue2factor/id1601861068)

This app offers seamless and secure authentication using proximity, biometrics, and encryption. It integrates with SAML for single sign-on, creating a frictionless user experience.

**Highlights:** Invisible first and second factor authentication, Single sign-on via SAML, Proximity verification, Biometric authentication, Asymmetric encryption, Frictionless and secure environment

**In-app purchases:** none


## Frequently asked questions

### Is Scientific Calculator free?

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

### Is Blue2Factor free?

Blue2Factor is free to download, with no in-app purchases.

### Which has better reviews, Scientific Calculator or Blue2Factor?

Blue2Factor is rated higher. Scientific Calculator averages 4.8 out of 5 from 17 ratings, while Blue2Factor averages 5.0 from 1 ratings.

### Do Scientific Calculator or Blue2Factor have ads?

Neither Scientific Calculator nor Blue2Factor shows ads.

### Which is updated more often, Scientific Calculator or Blue2Factor?

Scientific Calculator ships an update monthly, and Blue2Factor every 2 months. Most recently, Scientific Calculator was updated on October 27, 2026 and Blue2Factor on October 30, 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.*