# Bad Elf Flex vs CTT Mobile

The clearest difference is review sentiment: CTT Mobile at 100% against Bad Elf Flex's 40%. CTT Mobile also leads on rating (5.0 vs 3.6) and iOS requirement (13.0 vs 15.5). On price, ratings volume, update cadence 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.

CTT Mobile holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 14 and 7 respectively. Written reviews point the same way: 40% of Bad Elf Flex's written reviews are positive against 100% of CTT Mobile's.

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Bad Elf Flex | CTT Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (14 ratings)](https://appshunter.io/ios/app/bad-elf-flex/id1486378497/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/ctt-mobile/id1610872429/reviews)** |
| Number of ratings | **14** | 7 |
| Positive reviews | 40.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 33 MB | 59 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bad Elf, LLC.](https://appshunter.io/developer/391764721) | [Cellular Tracking Technologies](https://appshunter.io/developer/1588087267) |

## What reviewers say

### 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


### CTT Mobile

[App page](https://appshunter.io/ios/app/ctt-mobile/id1610872429)

Monitor real-time telemetry from your CTT devices. Adjust device duty cycles and connect to Bluetooth-enabled products like the Sidekick and Node Version 3.

**Highlights:** View latest telemetry data, Assign device duty cycle changes, Connect to Bluetooth enabled CTT products, Monitor Sidekick and Node Version 3

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bad Elf Flex free?

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

### Is CTT Mobile free?

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

### Which has better reviews, Bad Elf Flex or CTT Mobile?

CTT Mobile is rated higher. Bad Elf Flex averages 3.6 out of 5 from 14 ratings, while CTT Mobile averages 5.0 from 7 ratings.

### Do Bad Elf Flex or CTT Mobile have ads?

Neither Bad Elf Flex nor CTT Mobile shows ads.

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

Bad Elf Flex ships an update every 2 months, and CTT Mobile every 2 months. Most recently, Bad Elf Flex was updated on November 3, 2026 and CTT Mobile on November 3, 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.*