# Authenticator App vs BulkSource

The clearest difference is in-app purchases: BulkSource at none against Authenticator App's 15. BulkSource also leads on update cadence (monthly vs every 8 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Authenticator App sells 15 in-app purchases, starting at $4.99 per 7 days. BulkSource asks for nothing beyond the download.

Authenticator App ships an update every 8 months, BulkSource monthly. The most recent releases landed on October 15, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Authenticator App | BulkSource |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (210 ratings)](https://appshunter.io/ios/app/authenticator-app-2famfaotp/id6480137982/reviews)** | — |
| Number of ratings | **210** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 48 MB | 23 MB |
| Requires iOS | 17 | 17.0 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Authentication Services](https://appshunter.io/developer/1880352966) | [BulkSource](https://appshunter.io/developer/1843682636) |

## What reviewers say

### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-2famfaotp/id6480137982)

This app generates secure two-factor authentication tokens to protect your online accounts. It offers encrypted cloud backups and multi-device synchronization for easy recovery and access. The app works offline and can be secured with a PIN or biometric lock.

**Highlights:** Secure 2FA token generation, Encrypted cloud backups, Multi-device synchronization, Offline functionality, PIN and biometric lock

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Digital Security Authenticator | $4.99 | per 7 days |
| Enhance online security | $5.99 | per 7 days |
| Generate one-time passwords | $5.99 | per 7 days |
| Smart Authenticator | $6.99 | per 7 days |
| One-Time Password Generator | $7.99 | per 7 days |
| Secure Code Generator | $7.99 | per 7 days |
| One-Time Security Code App | $9.99 | per 7 days |
| Smart Code Authenticator | $11.99 | per 7 days |
| 2FA App | $14.99 | per month |
| Secure Verification Generator | $19.99 | per month |
| Secure your accounts | $19.99 | per month |
| Account protection Authenticator | $29.99 | per month |
| Secure your accounts | $39.99 | per year |
| Safe Login Code Generator | $49.99 | per year |
| One-Time Password | $59.99 | per year |


### BulkSource

[App page](https://appshunter.io/ios/app/bulksource/id6753989735)

**In-app purchases:** none


## Frequently asked questions

### Is Authenticator App free?

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

### Is BulkSource free?

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

### Do Authenticator App or BulkSource have ads?

Neither Authenticator App nor BulkSource shows ads.

### Which is updated more often, Authenticator App or BulkSource?

Authenticator App ships an update every 8 months, and BulkSource monthly. Most recently, Authenticator App was updated on October 15, 2026 and BulkSource on September 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.*