Comparison

uGI1 Config vs Bad Elf Flex

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

uGI1 Config

Configure and monitor a specific GPS-enabled device for cathodic protection systems. Set up multiple profiles, view device status, and manage settings remotely via Bluetooth. Requires dedicated hardware to function.

Highlights
  • Configure uGI1 device
  • Monitor device status and faults
  • Set up 10 custom profiles
  • Manage Real Time Clock (RTC)
  • View live profile information
  • Bluetooth connectivity
Features
Read full description

*** Requires a corTalk® uGI1 to use. *** Contact us at 'sales.ugi1@mobiltex.com' to purchase. This app is for configuring the uGI1 (Micro GPS-enabled Interrupter 1). The uGI1 is used to monitor and control a cathodic protection rectifier by switching a relay at precisely scheduled intervals. This app allows access to basic information on the uGI1 and allows setting up 10 different profiles to meet the customer's needs. Note that logs, due to their size, can only be extracted from the uGI1 using the PC configuration application through the USB port. The app has three tabs, a 'Settings' tab, 'Profiles' tab and 'Live Profile' tab. The 'Settings' tab allows for seeing a detailed status of the device, any recent faults that have arisen, manually setting the Real Time Clock (RTC), setting the unit's name, adding notes and rebooting the device. The 'Profiles' tab allows for the custom configuration of up to 10 independent profiles. It can read/write them from/to the unit and set their values. In addition, the profiles can be reset to their default values. The 'Live Profile' tab gives real time live information on the uGI1 Profile. The uGI1 must initially be put in Bluetooth pairing mode and a pairing code entered on the app. The pairing code (default=123456) can be found and changed with the PC configuration application. Once paired, the iOS device can reconnect without needing to re-enter the code or put the uGI1 back into pairing mode. Only iOS devices supporting Bluetooth 4.0 (LE) can connect to the RBT1 with this app. (iPhone 4S and newer and iPad 3rd gen and newer)

About

Bad Elf Flex

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
Read full description

This is the free companion utility app for the flexible, intuitive, and affordable Bad Elf Flex and Flex Mini GNSS receivers. Designed for GIS and survey professionals, the Bad Elf Flex and Flex Mini connect to your iPhone or iPad via Bluetooth and provide high-accuracy location data to ANY and ALL field data collection apps in your workflow. This app allows you to view the health of the Flex and Flex Mini hardware, change settings, and perform firmware updates. For the Bad Elf Flex, the app also supports purchasing and loading Flex Tokens into the hardware for enabling hardware-based features and correction sources. Several correction sources are supported including SBAS, RTK via NTRIP, and Atlas (L-band) satellite corrections. Visit https://bad-elf.com/ to learn more about the Bad Elf Flex and Flex Mini GNSS receivers. NOTES: * This app requires a Bad Elf Flex or Flex Mini to operate. * Our "Bad Elf GPS" companion app supports our legacy mapping-grade receivers: Bad Elf GPS Pro, GPS Pro+, Surveyor, and GPS for Lightning dongle. * Continued use of the GPS running in the background can dramatically decrease battery life.

Screenshots

uGI1 Config3 screens
Bad Elf Flex4 screens

Verdict

The call

The clearest difference is rating: Bad Elf Flex at 3.6 against uGI1 Config's 1.0. Bad Elf Flex also leads on update cadence (every 2 months vs every 6 months) and ratings volume (14 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Bad Elf Flex holds the better App Store score, 3.6 against 1.0. That said, the two scores are not equally well evidenced: Bad Elf Flex has 14 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

uGI1 Config ships an update every 6 months, Bad Elf Flex every 2 months. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
uGI1 Config versus Bad Elf Flex: the parameters behind the verdict, then further details
ParameteruGI1 ConfigBad Elf Flex
PriceFreeFree
Rating1.0 (2 ratings)3.6 (14 ratings) — better
Positive reviews—40.0% of reviews
Number of ratings214 — better
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.5 — better
Further details — not scored
Size4 MB33 MB
Age rating4+4+
DeveloperMobiltex DataBad Elf, LLC.

Customer experience

uGI1 Config

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

Bad Elf Flex

All ratings14 ratings
Positive57.1%
Neutral14.3%
Negative28.6%
Written reviews5 reviews
Positive40.0%
Neutral0.0%
Negative60.0%

In-app purchases

None

uGI1 Config

No in-app purchases

None

Bad Elf Flex

No in-app purchases

Questions

Is uGI1 Config free?
uGI1 Config 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, uGI1 Config or Bad Elf Flex?
Bad Elf Flex is rated higher. uGI1 Config averages 1.0 out of 5 from 2 ratings, while Bad Elf Flex averages 3.6 from 14 ratings.
Do uGI1 Config or Bad Elf Flex have ads?
Neither uGI1 Config nor Bad Elf Flex shows ads.
Which is updated more often, uGI1 Config or Bad Elf Flex?
uGI1 Config ships an update every 6 months, and Bad Elf Flex every 2 months. Most recently, uGI1 Config was updated on October 3, 2026 and Bad Elf Flex on October 12, 2026.

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