Comparison

Bad Elf Flex vs InfraMarker RFID

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

Head to head
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.

About

InfraMarker RFID

This application enhances infrastructure asset management by connecting with compatible UHF and NFC RFID tags and readers. It streamlines asset identification, inspection, and maintenance workflows, ensuring accurate audit and compliance records. The app integrates seamlessly with popular GIS applications.

Highlights
  • Connects with compatible UHF RFID readers
  • Reads and writes UHF RFID tags
  • Reads and writes NFC RFID tags
  • Integrates with ArcGIS Field Maps and Survey123
  • Offline RFID tag transactions
  • Captures location with RFID transactions
Features
Read full description

InfraMarker RFID app, compatible UHF and NFC RFID tags, readers, and host applications, such as ArcGIS Field Maps and ArcGIS Survey123 applications work together to transform the way infrastructure assets are managed. InfraMarker RFID improves asset identification accuracy, accelerates inspection and maintenance workflows, and enables a more reliable audit and compliance record. Key Features of InfraMarker RFID : • Connects with InfraMarker compatible UHF RFID reader/writers • Read data from passive UHF RFID Class 1, Gen 2 tags • Writes data to passive UHF RFID Class 1, Gen 2 tags • Read data from passive ndef formattable and NFC forum compliant RFID tags • Writes data to passive ndef formattable and NFC forum compliant RFID tags • Integrates with ArcGIS Survey123 and ArcGIS Field Maps • Writes and reads passive RFID tags in a disconnected environment • Location capture when doing an RFID tag transaction Special Note: This app requires you to have InfraMarker RFID compatible hardware and an InfraMarker organizational account. For more information see the developer website below.

Screenshots

Bad Elf Flex4 screens
InfraMarker RFID3 screens

Verdict

The call

The clearest difference is rating: InfraMarker RFID at 5.0 against Bad Elf Flex's 3.6. Bad Elf Flex's advantage is ratings volume (14 vs 1). On price, update cadence, ads and in-app purchases 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

InfraMarker RFID holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: Bad Elf Flex has 14 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Bad Elf Flex ships an update every 2 months, InfraMarker RFID every 6 weeks. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Bad Elf Flex versus InfraMarker RFID: the parameters behind the verdict, then further details
ParameterBad Elf FlexInfraMarker RFID
PriceFreeFree
Rating3.6 (14 ratings)5.0 (1 ratings) — better
Positive reviews40.0% of reviews—
Number of ratings14 — better1
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.5 — better16.0
Further details — not scored
Size33 MB8 MB
Age rating4+4+
DeveloperBad Elf, LLC.Berntsen International, Inc.

Customer experience

Bad Elf Flex

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

InfraMarker RFID

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Bad Elf Flex

No in-app purchases

None

InfraMarker RFID

No in-app purchases

Questions

Is Bad Elf Flex free?
Bad Elf Flex is free to download, with no in-app purchases.
Is InfraMarker RFID free?
InfraMarker RFID is free to download, with no in-app purchases.
Which has better reviews, Bad Elf Flex or InfraMarker RFID?
InfraMarker RFID is rated higher. Bad Elf Flex averages 3.6 out of 5 from 14 ratings, while InfraMarker RFID averages 5.0 from 1 ratings.
Do Bad Elf Flex or InfraMarker RFID have ads?
Neither Bad Elf Flex nor InfraMarker RFID shows ads.
Which is updated more often, Bad Elf Flex or InfraMarker RFID?
Bad Elf Flex ships an update every 2 months, and InfraMarker RFID every 6 weeks. Most recently, Bad Elf Flex was updated on October 26, 2026 and InfraMarker RFID on October 30, 2026.

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