Comparison

GNSS Analyzer vs NHDOT eFieldBook

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

Head to head
About

GNSS Analyzer

Record and analyze positioning data from QZSS-supported receivers. View satellite radar, signal strength, and current location on a map. Import logs to review past data and receive disaster management reports.

Highlights
  • Record NMEA positioning data
  • View satellite radar and signal level
  • Display current position on map
  • Import and preview recorded NMEA logs
  • Receive QZSS DC Reports
  • Share NMEA log files via email
Features
Read full description

This application enables you to record positioning data by the Quasi-Zenith Satellite System (QZSS) supported receiver. ●What is GNSS Analyzer? GNSS Analyzer enables you to record positioning data (NMEA log) by the QZSS supported receiver. It is provided satellites radar and signal level (C/N). You can also see the current position on the map. In addition, you can import the recorded NMEA log and display on the radar and the map. Furthermore, you can receive messages of Satellite Report for Disaster and Crisis Management "DC Report" that is known as QZSS services. ※You need QZSS supported receiver that is leased for free in the website below. URL: https://qzss.go.jp/appli-demo/appli01_info.html ●GNSS Analyzer main functions 【NMEA】 ・It shows positioning data as NMEA log by the receiver that are connected to your device (BLE connection). ・You can record output NMEA log in your device. ・Those recorded NMEA log file can be shared by e-mail. 【MapSky】 ・It is provided satellites radar and signal level (C/N). ・You can also see the current position on the map. 【Preview】 ・You can import the recorded NMEA log and display satellites radar, signal level and map position of time that you select. 【DC Report】 ・It shows messages of "DC Report" from QZSS. ・You can select display language (English or Japanese) and filter massages by current location. ●Support version -iOS 26 -iOS 18 -iOS 17 -iOS 16 -iOS 15 -iOS 14

About

NHDOT eFieldBook

Features
Read full description

The Electronic Field Book (eFieldBook) application supports collection of field data even when working on remote sites where direct network connections are not possible. Engineers or inspectors document daily work activities at the project site, including pay items and quantities of work performed, labor and equipment used by the contractor and subcontractors, daily time charges, daily weather conditions and temperatures at the project site, diary information including project inspections, and instructions to the contractor. The eFieldBook simplifies and streamlines the work of office and field personnel by downloading project pay items and stationing information from the central CMS to the portable device and electronically uploading the daily work information through the device’s synchronization functionality.

Screenshots

GNSS Analyzer3 screens
NHDOT eFieldBook4 screens

Verdict

The call

The clearest difference is update cadence: NHDOT eFieldBook at every 3 months against GNSS Analyzer's every 12 months. On price, 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

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

UpkeepUpdate frequency

GNSS Analyzer ships an update every 12 months, NHDOT eFieldBook every 3 months. The most recent releases landed on October 3, 2026 and September 29, 2026 respectively.

Scorecard1 real difference · 9 level
GNSS Analyzer versus NHDOT eFieldBook: the parameters behind the verdict, then further details
ParameterGNSS AnalyzerNHDOT eFieldBook
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 12 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.1
Further details — not scored
Size24 MB35 MB
Age rating4+4+
DeveloperNEC CorporationExeVision

In-app purchases

None

GNSS Analyzer

No in-app purchases

None

NHDOT eFieldBook

No in-app purchases

Questions

Is GNSS Analyzer free?
GNSS Analyzer is free to download, with no in-app purchases.
Is NHDOT eFieldBook free?
NHDOT eFieldBook is free to download, with no in-app purchases.
Do GNSS Analyzer or NHDOT eFieldBook have ads?
Neither GNSS Analyzer nor NHDOT eFieldBook shows ads.
Which is updated more often, GNSS Analyzer or NHDOT eFieldBook?
GNSS Analyzer ships an update every 12 months, and NHDOT eFieldBook every 3 months. Most recently, GNSS Analyzer was updated on October 3, 2026 and NHDOT eFieldBook on September 29, 2026.

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