GIS4Mobile vs GNSS Log App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GIS4Mobile
This app provides a flexible and user-friendly platform for field inspections, data collection, and documentation. It allows for custom form design, data reuse, and efficient editing of multiple entries, all stored in a cloud-based system.
- Customizable form design
- Data reuse for similar entries
- Bulk editing of map pins
- Cloud data storage
- Offline data collection
- Professional field documentation
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Recording is rewarding. When you use GIS4Mobile you will get a complete and updated documentation, collected on site by professionals in the field. GIS4Mobile is the most flexible and userfriendly way to do inspections, documentation, data-collections and registration in the field. You can set it up to use one of many templates, or you can design forms youself. While collecting data you will appreciate the utilities where the app will allow you to reuse datasets you entered earlier. So if you for instance need to register several similar lightpoles you can store all attributes in memory, so you do not need to enter the same data again and again. If you do inspections, you can edit several registrations in one click. First select one or more pins on the map, and then edit information for all the selected items. This is extremely timesaving. Data you collect is stored in the GIS4Mobile cloud. If you have a private data storage you can publish existing datasets, and configure forms and guidelines for collecting data or editing data. Forms can contain elements a textboxes, date/time pickers, dropdown lists, checkboxes and more. Get the app now - it is free. In the app choose free usage or connect your private storage by entering name and password. If you choose the free usage the app will ask you to enter your name and email. The purpose of this is for GIS4Mobile to be able to contact you if you try and register faulty data and alert you when the free usage expires. And remember - getting help from GIS4Mobile is free of charge. Just contact us. GIS4Mobile Terms of are listed here: https://www.gis4mobile.com/legal-stuff/
GNSS Log App
This app provides a digital solution for surveyors and geodesists to document static GNSS observations. It offers comprehensive equipment management, direct integration with geodetic databases, and tools for field data collection, all while ensuring professional, publication-ready PDF output.
- Digital static GNSS observation logging
- Comprehensive equipment library management
- Direct NGS database integration
- OPUS solution import and integration
- Field tools: timers, weather, photos, visibility diagrams
- Publication-ready PDF export
- Privacy-focused, no account required
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GNSS Obs - Professional Observation Logs GNSS Obs is the professional solution for documenting static GNSS observations. Designed for surveyors, geodesists, and geospatial professionals, it eliminates transcription errors and ensures consistent, accurate project documentation. Replace Paper Logs with Digital Precision Stop relying on paper forms, fillable PDFs, and handwritten notes. GNSS Obs provides a structured workflow that promotes accuracy and completeness while maintaining the professional standards required for geodetic control projects. Comprehensive Equipment Management Build and maintain your equipment library with support for: • Fixed height, collapsible and adjustable tripods • Antenna extensions • Integrated antenna/receiver configurations • Complete metadata for NGS compliance Import and export library items to share standardized configurations across your organization. Direct NGS Database Integration Access public monument data directly from: • National Geodetic Survey Integrated Database (IDB) • OPUS Share Database • NOAA CO-OPS Stations Monuments can also be entered manually when working with local control networks. OPUS Solution Integration Import OPUS solution emails to automatically populate: • Observed positions • Actual observation times • Session statistics • Solution quality metrics Include the complete OPUS solution in your PDF output for comprehensive project records. Essential Field Tools • Session timers with local notifications • Automatic weather recording at session start and end • Photo documentation with NGS-compliant naming • Satellite visibility diagrams using device motion sensors • Real-time editing before, during, and after observations Professional Documentation Export publication-ready PDF observation logs featuring: • Your company logo and branding • Complete equipment configurations • Weather conditions • Site photographs • Visibility diagrams • OPUS solutions Share via Files, email, AirDrop, or messaging. Note: This app documents observations and does not communicate with GNSS receivers. It is designed as a field companion for recording session metadata and producing professional deliverables. Privacy First All data remains on your device. No account required. Full control over exports and backups. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: GNSS Log App at 100% against GIS4Mobile's 0%. GNSS Log App also leads on rating (4.9 vs 3.0) and in-app purchases (none vs 1). GIS4Mobile's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (15.0 vs 18.0). On price, ads 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
Both are free to download. GIS4Mobile sells 1 in-app purchase, starting at $3.49 per month. GNSS Log App asks for nothing beyond the download.
GNSS Log App holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: GNSS Log App has 16 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of GIS4Mobile's written reviews are positive against 100% of GNSS Log App's.
GIS4Mobile ships an update every 3 weeks, GNSS Log App every 2 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.
| Parameter | GIS4Mobile | GNSS Log App |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) | 4.9 (16 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 16 — better |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 40 MB | 204 MB |
| Age rating | 4+ | 4+ |
| Developer | GIS4Mobile ApS | John May |
Customer experience
GIS4Mobile
GNSS Log App
In-app purchases
GIS4Mobile
- GIS4Mobile Monthly$3.491 Month
GNSS Log App
No in-app purchases









