# CERBToken vs Bad Elf Flex

The clearest difference is review sentiment: CERBToken at 100% against Bad Elf Flex's 40%. CERBToken also leads on rating (4.7 vs 3.6) and iOS requirement (12.1 vs 15.5). Bad Elf Flex's advantage is ratings volume (14 vs 3). On price, update cadence, ads and in-app purchases there is nothing between them.

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

CERBToken holds the better App Store score, 4.7 against 3.6. Both are backed by a comparable volume of ratings — 3 and 14 respectively. Written reviews point the same way: 100% of CERBToken's written reviews are positive against 40% of Bad Elf Flex's.

CERBToken ships an update every 6 weeks, Bad Elf Flex every 2 months. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | CERBToken | Bad Elf Flex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/cerbtoken/id308673987/reviews)** | [3.6 (14 ratings)](https://appshunter.io/ios/app/bad-elf-flex/id1486378497/reviews) |
| Number of ratings | 3 | **14** |
| Positive reviews | **100.0% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 22 MB | 33 MB |
| Requires iOS | **12.1** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fudo Security Sp. z o.o.](https://appshunter.io/developer/308673990) | [Bad Elf, LLC.](https://appshunter.io/developer/391764721) |

## What reviewers say

### CERBToken

[App page](https://appshunter.io/ios/app/cerbtoken/id308673987)

This utility generates secure one-time passwords for authentication with a specific system. It supports both time-based and event-based codes to enhance security.

**Highlights:** One-time password generation, Time-based OTPs, Event-based OTPs, CERB authentication support, Secure code generation

**Features:** macOS Compatibility

**In-app purchases:** none


### Bad Elf Flex

[App page](https://appshunter.io/ios/app/bad-elf-flex/id1486378497)

This utility app enhances the functionality of Bad Elf Flex and Flex Mini GNSS receivers. It allows users to monitor hardware health, adjust settings, and update firmware. For the Flex model, it also enables the purchase and application of tokens for advanced features and correction sources like SBAS and RTK.

**Highlights:** Monitor GNSS receiver health, Change hardware settings, Perform firmware updates, Purchase and load Flex Tokens, Enable hardware-based features, Access correction sources

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CERBToken free?

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

### Is Bad Elf Flex free?

Bad Elf Flex is free to download, with no in-app purchases.

### Which has better reviews, CERBToken or Bad Elf Flex?

CERBToken is rated higher. CERBToken averages 4.7 out of 5 from 3 ratings, while Bad Elf Flex averages 3.6 from 14 ratings.

### Do CERBToken or Bad Elf Flex have ads?

Neither CERBToken nor Bad Elf Flex shows ads.

### Which is updated more often, CERBToken or Bad Elf Flex?

CERBToken ships an update every 6 weeks, and Bad Elf Flex every 2 months. Most recently, CERBToken was updated on October 3, 2026 and Bad Elf Flex on October 12, 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.*