RTKapp vs TopoWalk
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
RTKapp
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Welcome to RTKapp --------------------- Centimeter Precision in your Pocket RTKapp is the ultimate solution for surveyors, engineers, and GNSS enthusiasts who need professional workflows without the burden of desktop software. Connect, record, process, and analyze satellite data directly from your iPhone or iPad in a fast, private, and powerful way. Powered by the robust RTKLIB engine (Demo5), RTKapp allows you to execute RTK positioning, Post-Processing (PPK/PPP), and raw data conversion in seconds, wrapped in a modern, streamlined interface. REAL-TIME RTK ---------------- - Total Connectivity: Connect your GNSS receiver via Bluetooth (BLE) or TCP, or get network corrections through the built-in NTRIP Client. - Live Quality Metrics: Monitor your signal status in real-time with AR ratio, HRMS/VRMS, DOP, SNR (Signal-to-Noise Ratio), and Skyplot views. - VRS Support: Works seamlessly with Virtual Reference Stations by automatically sending your configured position (GGA) to the caster. - Transparent Recording: Natively capture and log raw data streams from the Rover, Base, and corrections simultaneously while you measure. INSTANT POST-PROCESSING ------------------------------ - Load your observation (Rover/Base) and navigation files on the fly. - Execute kinematic, static, or precise point positioning (PPP) with advanced algorithms. - Analytical Plotting: Dive deep with E/N/U position graphs, horizontal scatter plots, cycle slip detection, and post-fit phase residuals to ensure maximum survey-grade quality. FIELD PRO TOOLS ------------------- - RINEX Converter: Import binary logs from RTCM3 and export them to universal RINEX format with advanced versioning and frequency selections (L1/L2/L5). - NTRIP Caster Management: Browse sourcetables, save profiles for your favorite VRS networks, and even share data by forwarding corrections via Bluetooth. - Configuration Profiles: Save your processing settings, elevation masks, and ambiguity resolution parameters into custom profiles for instant field readiness. LOCAL PRIVACY FIRST ----------------------- Your data belongs to you. RTKapp processes all positioning locally right on your device. We do not rely on the cloud to calculate your position, we don't track your projects, and all exports to GPX, KML, CSV, or .pos coordinate files are performed purely on-demand. Master GNSS precision anywhere, no laptop required. Download RTKapp and streamline your data collection and processing today!
TopoWalk
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TopoWalk turns your iPhone into a GPS-guided land boundary walker. Load a trail file, walk the boundary, and watch waypoints turn green as you reach each one. WALK ANY BOUNDARY Load land parcels, property boundaries, or hiking trails from GPX, KML, DXF, and Shapefile formats. TopoWalk shows each waypoint on a satellite map with a yellow boundary line connecting them. GPS GUIDANCE Real-time distance to the next waypoint, off-trail warnings, and an audio chime when you arrive within 1 meter of each point. Never miss a boundary corner again. CONVERT BETWEEN FORMATS TopoWalk is the only app that converts between all major surveying and trail file formats. Import a KML cadastral map from a surveyor, convert it to GPX for your hiking app, export as DXF for AutoCAD, or save as Shapefile for GIS software. One tap to convert β no desktop software needed. Supported conversions: β’ GPX β KML β DXF β Shapefile (SHP) β’ Import from email, Files app, or any cloud storage β’ Export and share in any format TRACK YOUR PROGRESS See how many waypoints you've visited, total distance walked, land area and perimeter calculations β all updating live as you walk. 44 WORLD LANDMARKS INCLUDED Explore boundaries of famous landmarks: Buckingham Palace, Taj Mahal, Vatican City, Stonehenge, Machu Picchu, Forbidden City, and many more β all with real satellite-accurate boundaries from OpenStreetMap. FREE FEATURES β’ GPX file support β’ GPS-guided walking with audio alerts β’ Progress tracking and distance display β’ 44 bundled world landmark trails TOPOWALK PRO (one-time purchase) β’ KML, DXF, and Shapefile import & export β’ Convert between all formats (GPX, KML, DXF, SHP) β’ Area and perimeter calculations β’ Share trails with others
Screenshots
Verdict
The clearest difference is in-app purchases: RTKapp at none against TopoWalk's 1. TopoWalk's advantage is update cadence (every 2 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. TopoWalk sells 1 one-off in-app purchase. RTKapp asks for nothing beyond the download.
RTKapp ships an update every 3 weeks, TopoWalk every 2 days. The most recent releases landed on September 13, 2026 and September 10, 2026 respectively.
| Parameter | RTKapp | TopoWalk |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 2 days β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad β better | iPhone |
| Requires iOS | 17.0 β better | 17.2 |
| Further details β not scored | ||
| Size | 93 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Juan Carlos Lopez Calvo | Zsolt Bencze |
In-app purchases
RTKapp
No in-app purchases
TopoWalk
- GPXWalk Pro$4.99









