# Authenticator App vs Parallel Space

The clearest difference is in-app purchases: Parallel Space at none against Authenticator App's 11. Parallel Space also leads on review sentiment (48% vs 20%). Authenticator App's advantage is ads (none vs shown) and update cadence (every 9 days vs every 2 months). On price, rating and ratings volume there is nothing between them.

Both are free to download. Authenticator App sells 11 in-app purchases, starting at $5.99 per 7 days. Parallel Space asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.2 for Authenticator App against 4.3 for Parallel Space. Both are backed by a comparable volume of ratings — 86 and 152 respectively. Written reviews are what separate them: 20% of Authenticator App's written reviews are positive against 48% of Parallel Space's.

Authenticator App ships an update every 9 days, Parallel Space every 2 months. The most recent releases landed on September 23, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Authenticator App | Parallel Space |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (86 ratings)](https://appshunter.io/ios/app/authenticator-app-2fa-mfa/id6472872177/reviews) | **[4.3 (152 ratings)](https://appshunter.io/ios/app/parallel-space-dual-space/id6741793035/reviews)** |
| Number of ratings | 86 | **152** |
| Positive reviews | 20.0% of reviews | **47.8% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 2 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 50 MB | 20 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hearttell US Limited](https://appshunter.io/developer/508262068) | [梓峰 戴](https://appshunter.io/developer/1755318637) |

## What reviewers say

### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-2fa-mfa/id6472872177)

Secure your online accounts with two-factor authentication. This app offers passwordless sign-ins, seamless autofill, and encrypted backups. It supports a vast range of services and works across Apple devices, with advanced security features like Face ID and Touch ID.

**Highlights:** Two-factor authentication (2FA), Multi-factor authentication (MFA), Passwordless sign-ins, Seamless password autofill, Encrypted iCloud backup, Offline OTP generation, Face ID & Touch ID security

**Features:** Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authenticator App 2FA Weekly | $5.99 | per 7 days |
| Authenticator_App_2FA_MFA_Week | $6.99 | per 7 days |
| Authenticator App Monthly | $9.99 | per month |
| Authenticator App 2FA Monthly | $9.99 | per month |
| Authenticator App 2FA Monthly | $19.99 | per month |
| Authenticator_App_Yearly | $29.99 | per year |
| Authenticator App 2FA Yearly | $39.99 | per year |
| Authenticator App Yearly | $49.99 | per year |
| Authenticator_App_2FA_Yearly | $49.99 | per year |
| Authenticator App One-time | $49.99 | one-time |
| Authenticator_App_2FA_Onetime | $99.99 | one-time |


### Parallel Space

[App page](https://appshunter.io/ios/app/parallel-space-dual-space/id6741793035)

Effortlessly manage multiple social media and app accounts on a single device. Keep all accounts online simultaneously, separating personal and professional use without constant switching. Ensures data privacy and security with independent account management.

**Highlights:** Multiple accounts online simultaneously, Work-life balance management, Independent data management, Quick widget access, Password lock protection

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

**In-app purchases:** none


## Frequently asked questions

### Is Authenticator App free?

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

### Is Parallel Space free?

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

### Which has better reviews, Authenticator App or Parallel Space?

Parallel Space is rated higher. Authenticator App averages 4.2 out of 5 from 86 ratings, while Parallel Space averages 4.3 from 152 ratings.

### Do Authenticator App or Parallel Space have ads?

Parallel Space shows ads; Authenticator App does not.

### Which is updated more often, Authenticator App or Parallel Space?

Authenticator App ships an update every 9 days, and Parallel Space every 2 months. Most recently, Authenticator App was updated on September 23, 2026 and Parallel Space on September 13, 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.*