NMEA Tools

Contains adsIn-app purchases
461 reviews
Content rating
Everyone
50K+
Downloads
Content rating
Everyone
Learn more
Screenshot image
Screenshot image
Screenshot image

About this app

The purpose NMEA Tools is to log your RAW GPS information (NMEA sentences) to a file on your SD card. Also, it can parse a NMEA file.


Features:
1. Log RAW NMEA sentences
2. Display the route in Google Map
3. Show latitude, longitude, altitude, speed, PDOP and HDOP
4. Support background logging
5. Parse NMEA sentences
6. View NMEA sentences
7. Limit 9999 NMEA sentences per session
8. Support GPS, GLONASS and BeiDou systems
9. Support English, German, French, Italian, Spanish, Portuguese, Japanese, Trad. Chinese, Simplified Chinese and Russian


Features in PRO version :
1. Log particular NMEA sentences
2. No limitation of NMEA sentences in capturing and parsing
3. No advertisement



Permission
* Modify/delete SD card contents is used to write NMEA file to SD card
* Internet access is used for ad and Google Map
* Prevent phone from sleeping is used to keep the screen on for user taking lap


How to use the app ?
Press top left "GPS" icon to enable GPS.
Press "Log" button to start logging NMEA data. To stop logging, press the "Log" button again
Press "Save" icon to save the logging data to NMEA file


Note :
1. For those who need support please email to the designated email.
Do NOT use either the feedback area to write questions, it is not appropriate and that is not guaranteed that can read them.



NMEA stands for National Marine Electronics Association. This app is not related or affiliated in any way National Marine Electronics Association.
Log or parse NMEA sentences
Updated on
Sep 3, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

Ratings and reviews

419 reviews
Aaron Webstey
August 30, 2026
Update: the developer got back to me pretty much immediately and fixed the licensing issue. This app is pretty amazing. I've been using it to allow my software to track my position while on a ship in the Arctic and it just works exactly like I want it to (and better than I than I thought it would). Past comment: This is a great app but every time I open it I have to re-confirm that I have paid for the features I have purchased in app.
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Peter Ho
August 28, 2026
Thank you for your review and feedback! We’re sorry for the inconvenience this issue is causing you. We'd love to help resolve this so you don't keep losing your purchases. Please contact us at peterhohsy@gmail.com with your account or order details so we can investigate and get this fixed for you right away.
Ryan Hurst
January 13, 2023
Will not allow usage unless you permit all of the time access. I only want while using the app but that is not an option so this app is immediately suspect. Delete it ASAP.
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Peter Ho
January 13, 2023
Select "Allow all the time" make the app run in the background. If you select "Allow only while using the app", the app stop logging when the you switch to other apps. It will resume logging when you switch back to this app. If you still have problems using the app, please send us an email peterhohsy@gmail.com
Colin Stepney
March 26, 2025
Logs NMEA location but won't log depth. My OpenCPN logs depth just fine on my WiFi gateway, but this app won't do it.
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What’s new

3.0.70
- Fix minor bugs
Content rating
Everyone
Learn more

App support

About the developer
HO SIU YUEN
peterhohsy@gmail.com
Flat 6, 26/F, Block E,The Trend Plaza North Wing, 2 Tuen Hop St 屯門 新界 Hong Kong

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