# Authenticator vs CalculatorProf

The clearest difference is price: Authenticator at Free against CalculatorProf's $4.99. Authenticator also leads on iOS requirement (8.0 vs 11.0). On ads, in-app purchases and device support there is nothing between them.

Authenticator is free to download; CalculatorProf costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Authenticator | CalculatorProf |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/authenticator/id783640530/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | — |
| Monetization | Free | — |
| Size | 5 MB | 27 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Bit4id s.r.l](https://appshunter.io/developer/783640533) | [Daniele Tona](https://appshunter.io/developer/1094664233) |

## What reviewers say

### Authenticator

[App page](https://appshunter.io/ios/app/authenticator/id783640530)

This app provides an enhanced security layer for accessing Bit4id systems. It generates temporary one-time passwords (OTP) using the Time-based One-time Password Algorithm (TOTP) without requiring an internet connection after initial setup. The application supports multiple Bit4id applications and uses a one-time QR code configuration.

**Highlights:** One-time password (OTP) generation, Time-based One-time Password Algorithm (TOTP), Offline code generation, Multi-application support, Automated QR code configuration

**Features:** macOS Compatibility

**In-app purchases:** none


### CalculatorProf

[App page](https://appshunter.io/ios/app/calculatorprof/id6479809687)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Authenticator free?

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

### Is CalculatorProf free?

CalculatorProf costs $4.99, with no in-app purchases.

### Do Authenticator or CalculatorProf have ads?

Neither Authenticator nor CalculatorProf shows ads.

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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.*