NMEAconnect vs Multilevel
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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)
Multilevel
Measure the precise angle between multiple devices simultaneously. This app is useful for aligning physical objects, especially when they are distant or obstructed. It utilizes Bluetooth for seamless communication between devices without manual pairing.
- Precise angle measurement between multiple devices
- Bluetooth-based device communication
- Automatic device discovery and connection
- Conventional bubble level functionality
- Cross-platform support (macOS, iOS)
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Displays precise angle between two or more devices, making it possible to perfectly align physical objects in relation to one another. Measuring relative level comes in handy for aligning items that have significant distance or physical obstruction between them. Sometimes there’s a need to determine angle between separate objects, rather than to see how flat they lay relative to the planet’s surface. The app uses Bluetooth to broadcast its magnetometer’s data and to observe position values of other devices that run Multi Level, then it uses that data to compare and display its own physical orientation in relation to other devices. The communication is done without having to pair the devices — there’s no need to tap on anything or deal with PIN codes, everything happens automatically. With only one device running the app, Multi Level works as a conventional bubble level. Position measurements can be observed from desktop and laptop computers using the macOS version of Multi Level. You don’t need to purchase this app more than once, as long as all devices use the same Apple ID.
Screenshots
Verdict
The clearest difference is price: Multilevel at Free against NMEAconnect's $3.99. Multilevel also leads on rating (5.0 vs 4.7). NMEAconnect's advantage is ratings volume (3 vs 1) and iOS requirement (12.0 vs 15.0). On update cadence, 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
Multilevel is free to download; NMEAconnect costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Multilevel holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
NMEAconnect ships an update every 5 months, Multilevel every 3 months. The most recent releases landed on September 21, 2026 and September 8, 2026 respectively.
| Parameter | NMEAconnect | Multilevel |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.7 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 85.7% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 5 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 3 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | zapfware | Defiantware, LLC |
Customer experience
NMEAconnect
Multilevel
In-app purchases
NMEAconnect
No in-app purchases
Multilevel
No in-app purchases









