TCP Commander vs GNSS Survey Logger
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
TCP Commander
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TCP Commander - the application created for testing and debugging of systems that use control commands. Simulation sensors, send control commands and others. - operation as a client; - supports the recording and storage of custom commands; - supports the storage and use of the previous connection settings; - support decrypting of incoming message; - crlf setup; - log input format (utf-8, utf-16, HEX).
GNSS Survey Logger
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GNSS Survey Logger is a simple field utility for saving GPS/GNSS-based measurement points and generating clean field reports directly from your iPhone. The app helps you record important location data during field work, site checks, surveys, technical visits, inspections, or documentation tasks. Main features: ⢠Save measurement points with timestamp ⢠Record latitude and longitude ⢠Show coordinates in decimal and DMS format ⢠Display altitude and accuracy values ⢠Show local time and UTC time ⢠Calculate visible GNSS satellite count from orbital data ⢠Export saved points into a PDF Field Report ⢠Share or save the report using the iOS share sheet Each saved measurement point contains the key data needed for later documentation, including coordinates, timestamp, accuracy, altitude, and visible GNSS satellite count. GNSS Survey Logger is designed for quick field logging, technical documentation, and simple survey-style reporting. Note: Visible satellite count is calculated from public orbital data based on current location and time. It is not raw receiver diagnostic data from the iPhone GNSS chipset.
Screenshots
Verdict
The clearest difference is iOS requirement: TCP Commander at 11.2 against GNSS Survey Logger's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on November 11, 2026 and October 31, 2026 respectively.
| Parameter | TCP Commander | GNSS Survey Logger |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod ā better | iPhone, iPod |
| Requires iOS | 11.2 ā better | 13.0 |
| Further details ā not scored | ||
| Size | 17 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Š¢ŠŠ£ | Attila Vekony |
In-app purchases
TCP Commander
No in-app purchases
GNSS Survey Logger
No in-app purchases
Questions
Is TCP Commander free?
Is GNSS Survey Logger free?
Do TCP Commander or GNSS Survey Logger have ads?
Which is updated more often, TCP Commander or GNSS Survey Logger?
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