Comparison

NMEAconnect 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

NMEAconnect

This utility app acts as a server or bridge for NMEA data, connecting to various sources like TCP/UDP, BLE, and GPS. It organizes data into modules and can forward messages to other devices, acting as a multiplexer or repeater.

Highlights
  • NMEA 0183, NMEA 2000, SignalK, MQTT support
  • TCP/UDP, BLE, internal/external GPS, Logfile connection
  • NMEA multiplexer, hub, and switch
  • Server/repeater for NMEA messages
  • Background updates and logging
  • Message filtering and rules
Read full description

NMEAconnect can connect to almost any NMEA source using TCP/UDP, BLE, internal/external GPS, Simulation or Logfile and act as an NMEA server/bridge via TCP/UDP. With NMEAconnect you have: ∙ support of NMEA 0183, NMEA 2000, SignalK or MQTT data of almost any device ∙ a simple setup with preconfigured sources plus versatile configuration options ∙ all values ordered into clear 'Modules' ∙ a NMEA multiplexer, hub or switch ∙ a server/repeater to forward NMEA messages to other devices (most NMEA-WiFi gateways are accepting only one client) ∙ a server of the internal GPS Position as NMEA data to an external device ∙ a MQTT broker, client or gateway ∙ ‚unlimited‘ NMEA log (even when NMEAconnect is in background) ∙ nmeaconnect:// protocol to provide NMEA data e.g. to a Filemaker database ∙ background updates ∙ a visual indicator for NMEA activity ∙ Environments to handle different setups ∙ Message-Rules: Block, Gate Time and TalkerID for each NMEA sentence Supported & preconfigured Devices: For a complete list of supported devices please visit: www.zapfware.de/nmearemote/sources/ ∙ WiFi: Actisense W2K-1 AstraYacht B&G: Vulcan, Zeus comar (NMEA-2-WiFi & i300W/i320W) Digital Yacht (TCP, UDP & NavLink 2) GoFree™ (B&G) GMM (NMEA 0183 & N2k) iKommunicate nke NMEA WiFi Interface NMEA over IP (TCP, UDP) Open Skipper (N2k Datagram) Quark-elec PilotTech - AIS Pilot Plug WiFi PredictWind DataHub Sailor Hat WiFi Gateway SailTimer Air Link™ ShipModul: MiniPlex-2Wi, MiniPlex-3Wi(-N2K) SignalK Vesper: Cortex, XB 8000, Watch Mate Vision vYacht Yacht Devices YDWG-02 (N2k) Yakker ∙ Bluetooth: Calypso: ULTRASONIC, CUPS 4.0 & NMEA CONNECT 4.0 OpenWind RaceBox Skywatch BL 500/1000 ∙ Internal: Core Location (iOS GPS) iOS Barometer ∙ Misc: LogFile Simulation String NOT Supported Devices: ∙ Garmin GNT 10 & chartplotters ∙ Raymarine WiFi devices (these companies are not interested in collaborations and still keeping their systems secret - vendor lock)

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

NMEAconnect4 screens
Bad Elf Flex4 screens

Verdict

The call

The clearest difference is review sentiment: NMEAconnect at 86% against Bad Elf Flex's 40%. NMEAconnect also leads on rating (4.7 vs 3.6) and iOS requirement (12.0 vs 15.5). Bad Elf Flex's advantage is price (Free vs $3.99) and update cadence (every 2 months vs every 5 months). On ads, in-app purchases and device support 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

Bad Elf Flex is free to download; NMEAconnect costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

NMEAconnect 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: 86% of NMEAconnect's written reviews are positive against 40% of Bad Elf Flex's.

UpkeepUpdate frequency

NMEAconnect ships an update every 5 months, Bad Elf Flex every 2 months. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.

Scorecard7 real differences · 3 level
NMEAconnect versus Bad Elf Flex: the parameters behind the verdict, then further details
ParameterNMEAconnectBad Elf Flex
Price$3.99Free — better
Rating4.7 (3 ratings) — better3.6 (14 ratings)
Positive reviews85.7% of reviews — better40.0% of reviews
Number of ratings314 — better
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.5
Further details — not scored
Size3 MB33 MB
Age rating4+4+
DeveloperzapfwareBad Elf, LLC.

Customer experience

NMEAconnect

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

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

NMEAconnect

No in-app purchases

None

Bad Elf Flex

No in-app purchases

Questions

Is NMEAconnect free?
NMEAconnect costs $3.99, 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, NMEAconnect or Bad Elf Flex?
NMEAconnect is rated higher. NMEAconnect averages 4.7 out of 5 from 3 ratings, while Bad Elf Flex averages 3.6 from 14 ratings.
Do NMEAconnect or Bad Elf Flex have ads?
Neither NMEAconnect nor Bad Elf Flex shows ads.
Which is updated more often, NMEAconnect or Bad Elf Flex?
NMEAconnect ships an update every 5 months, and Bad Elf Flex every 2 months. Most recently, NMEAconnect was updated on October 4, 2026 and Bad Elf Flex on October 12, 2026.

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