# 2FA Authenticator vs Concrete Calc Pro

The clearest difference is update cadence: Concrete Calc Pro at every 2 days against 2FA Authenticator's every 5 months. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for 2FA Authenticator against 5.0 for Concrete Calc Pro. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

2FA Authenticator ships an update every 5 months, Concrete Calc Pro every 2 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 2FA Authenticator | Concrete Calc Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/2fa-authenticator-auth-app/id6754549066/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/concrete-calc-pro/id6757319879/reviews) |
| Number of ratings | 2 | **4** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 days** |
| Monetization | Free | Free |
| Size | 4 MB | 7 MB |
| Requires iOS | 26.5 | **26.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hamid Sher agha](https://appshunter.io/developer/1692155889) | [LimeLime Labs LLC](https://appshunter.io/developer/1002915290) |

## What reviewers say

### 2FA Authenticator

[App page](https://appshunter.io/ios/app/2fa-authenticator-auth-app/id6754549066)

This app generates time-based one-time passwords (TOTP) and manages passkeys to secure your online accounts with multi-factor authentication. It offers offline code generation, encrypted cloud backup, and biometric locks for enhanced security and convenience.

**Highlights:** Generates TOTP codes offline, Encrypted cloud backup and multi-device sync, Face ID & Touch ID lock, Easy import/export from other authenticators, Secure recovery options, Privacy-first design with minimal telemetry, QR code scanning for account setup

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

**In-app purchases:** none


### Concrete Calc Pro

[App page](https://appshunter.io/ios/app/concrete-calc-pro/id6757319879)

This app provides accurate estimates for concrete yardage, cement bags, and material costs for various construction projects. It supports multiple units and slab shapes, helping users avoid waste and save money on their pours.

**Highlights:** Concrete volume estimation, Cement bag calculation, Material cost estimation, Supports metric and imperial units, Works offline, Rectangular, circular, and area slabs

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 2FA Authenticator free?

2FA Authenticator is free to download, with no in-app purchases.

### Is Concrete Calc Pro free?

Concrete Calc Pro is free to download, with no in-app purchases.

### Which has better reviews, 2FA Authenticator or Concrete Calc Pro?

2FA Authenticator and Concrete Calc Pro are both rated 5.0 out of 5 on the App Store, from 2 and 4 ratings respectively.

### Do 2FA Authenticator or Concrete Calc Pro have ads?

Neither 2FA Authenticator nor Concrete Calc Pro shows ads.

### Which is updated more often, 2FA Authenticator or Concrete Calc Pro?

2FA Authenticator ships an update every 5 months, and Concrete Calc Pro every 2 days. Most recently, 2FA Authenticator was updated on October 25, 2026 and Concrete Calc Pro on October 28, 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.*