This QField 4.3.5 free download guide gets you the latest patch release of QField — the free, open-source mobile GIS app that turns your phone or tablet into a field data collection station. QField syncs with QGIS projects, works fully offline, and captures GPS positions, photos, and form data right on site. Version 4.3.5 is a targeted stability update: it fixes a crash that could occur when sending NTRIP corrections to an external GNSS receiver over Bluetooth Low Energy. If you collect RTK-accurate positions in the field, this is a fix worth having. Below you will find what changed, how to download and install it on Android, iOS, and desktop, system requirements, and answers to the most common questions.
QField 4.3.5 Download: What’s New in This Release
QField 4.3.5 is the newest point release in the 4.3 series, published on the official opengisch/QField GitHub releases page. It is a focused bug-fix update — no new tools, no interface changes — which makes it a safe, quick upgrade for anyone already on 4.3.x.
Fixes the BLE/NTRIP crash for external GNSS receivers
The headline fix in 4.3.5 addresses a crash caused by exceeding the maximum Bluetooth Low Energy MTU when sending NTRIP correction data to a GNSS device. In plain terms: if you pair QField with an external high-accuracy GNSS receiver (the kind surveyors use for centimeter-level positions) and stream RTK corrections over Bluetooth, the app could crash mid-session. That crash is now fixed, so field sessions with external receivers are stable again.
Built on the 4.3 “summer of stability” release
Version 4.3 itself was the result of the project’s stability campaign: a new bookmarks manager, QFieldCloud project templates, a revamped cloud project page, an improved camera experience, 3D map views with geographic CRS support, and hundreds of bug fixes across the board. 4.3.1 through 4.3.4 added more fixes — BLE connection transfer rates, project translation, dashboard editing, and NTRIP client compatibility. 4.3.5 continues that polish with this final crash fix, so it is the most stable 4.3.x build you can run.
How to download and install QField 4.3.5 on Android and iOS
On Android, install QField from the Google Play Store — search “QField” and update to the latest version. You can also grab the APK directly from the official GitHub releases page if your device has no Play Store. On iOS, QField is available on the Apple App Store for iPhone and iPad; open the App Store, search “QField”, and tap Update or Get. The app is completely free on both stores — no paid version and no locked features.
How to install QField 4.3.5 on Windows, macOS, and Linux
Desktop builds of QField 4.3.5 are published on the official GitHub releases page. Windows users can install from the Microsoft Store or download the installer from the releases page. Linux builds are distributed as portable packages, and the release page lists the available builds for each platform. After installing, open QField and check the version in the app settings to confirm you are on 4.3.5.
System requirements
| Requirement | Detail |
|---|---|
| Android | Android 8.0 (Oreo) or newer; GPS-capable device recommended |
| iOS | iOS 17.0 or newer (iPhone / iPad) |
| Windows | Windows 10/11 64-bit (Store or standalone installer) |
| Disk space | ~300 MB for the app, plus room for offline project data and imagery |
| Connectivity (optional) | Bluetooth LE for external GNSS receivers; internet for QFieldCloud sync and NTRIP casters |
| Companion software (optional) | QGIS 3.28+ on desktop to prepare and sync field projects |
Frequently asked questions
Is QField 4.3.5 really free?
Yes. QField is fully open-source. There is no paid version, no subscription, and no locked features — 4.3.5 costs nothing on Android, iOS, or desktop.
What is new in QField 4.3.5?
One targeted fix: it resolves a crash caused by exceeding the maximum Bluetooth Low Energy MTU when sending NTRIP corrections to an external GNSS receiver. It is a stability update with no new features.
Do I need QGIS to use QField?
Not strictly — you can create projects in the app — but the standard workflow is preparing your layers, forms, and symbology in QGIS on desktop, then opening the same project in QField. QFieldCloud makes the sync painless.
Can QField work offline?
Yes. Projects, offline basemaps, and captured data all live on the device. You only need a connection when syncing with QFieldCloud or pulling live NTRIP corrections.
Does QField support high-accuracy GNSS?
Yes. QField connects to external GNSS receivers over Bluetooth and supports NTRIP correction streams for RTK positioning — which is exactly the workflow this 4.3.5 update stabilizes.
Should I upgrade from QField 4.3.0–4.3.4?
If you use an external GNSS receiver with NTRIP corrections, upgrade now — 4.3.5 fixes a crash in that exact setup. For everyone else, it is still the safest, most polished 4.3.x build available.
QField 4.3.5 is a small but important release: one crash fix that matters a lot to anyone collecting high-accuracy field data with an external GNSS receiver. It installs in minutes from the Play Store, App Store, or the official GitHub releases page, and it costs nothing. If your fieldwork depends on Bluetooth GNSS + NTRIP, update today.
Related posts: QField Field Data Collection · QGIS Download for Windows, MacOS and Linux · Free GIS Software for Mac
Disclosure: Some links on this page are affiliate links. If you buy a book through them, CartoGeek may earn a small commission at no extra cost to you. This helps keep our GIS guides free for students. Thank you for your support!
Recommended QGIS Books
Learn QGIS: Techniques for Efficient Spatial Analysis (5th Edition)
by Eugenia Sarafova, Ivan Ivanov, Andrew Cutts, Anita Graser
The most current beginner-to-intermediate QGIS book, covering spatial analysis, cartography, field data collection and earth observation workflows with real-world examples. Written with input from Anita Graser, a well-known QGIS community figure, it walks readers from first install to confident analysis.
Pros:
- Up to date with recent QGIS versions
- Hands-on, exercise-driven teaching style
- Covers modern topics like GenAI tools and mobile data collection
Cons:
- Moves fast for absolute beginners with zero GIS background
- Some advanced chapters assume basic statistics knowledge
QGIS Quick Start Guide: A Beginner’s Guide to Getting Started with QGIS
by Andrew Cutts
A short, beginner-friendly entry point to QGIS that steps through loading data, creating vector layers, styling, labeling and building your first maps. Its narrative style builds confidence quickly for readers who want results in a weekend.
Pros:
- Short and approachable — no 800-page intimidation
- Clear step-by-step instructions
- Good first book before tackling heavier texts
Cons:
- Based on an older QGIS version, so some screenshots differ
- Light on advanced analysis topics
Learning Geospatial Analysis with Python (3rd Edition)
by Joel Lawhead
A systematic guide to GIS and remote sensing analysis with Python, covering geodatabases, raster data, PostGIS, QGIS integration and workflow automation. Readers build real analytical skills, from thematic mapping to flood modeling.
Pros:
- Bridges GIS and Python — the highest-demand skill combo
- Practical projects, not just theory
- Covers the open-source stack (GeoPandas-style workflows, PostGIS, QGIS)
Cons:
- Requires basic Python knowledge first
- Some library versions have moved on since publication
