Best Open Source Map Apps

136+ iOS apps curated and reviewed

4.4 avg rating
17 free apps
Updated June 2026

With an average user rating of 4.4★, the open source map category is one of the App Store's strongest. Browse all 136+ apps we track, sorted so the most loved ones surface first.

Top Picks for Open Source Map

OsmAnd Maps Travel & Navigate#1

OsmAnd Maps Travel & Navigate by OsmAND B.V.

Top-rated mobile trip planner
Editor's Choice
✈️ Travel
4.6😐(5.5K ratings)
FreeIn-App Purchases
#77in Travel
OsmAnd Maps Travel & Navigate screenshot 1
OsmAnd Maps Travel & Navigate screenshot 2
OsmAnd Maps Travel & Navigate screenshot 3
OsmAnd Maps Travel & Navigate screenshot 4
OsmAnd Maps Travel & Navigate screenshot 5
OsmAnd Maps Travel & Navigate screenshot 6

Explore detailed maps, navigate with offline access, receive live traffic updates, plan routes, and discover points of interest with this versatile travel companion. Discover the world around you effortlessly.

What We Love

  • 🗺️ Great open-source maps
  • 🔒 Privacy-focused
  • 📱 Offline functionality
  • 🛠️ Highly customizable

Room to Improve

  • 🐛 Crashes and bugs
  • 🤯 Confusing user interface
  • 🔋 Battery drain issues
CoMaps#2

CoMaps by Anton Wenemoser

Navigate with Privacy
Strong Contender
🗺️ Navigation
4.7😊(101 ratings)
Free
CoMaps screenshot 1
CoMaps screenshot 2
CoMaps screenshot 3

Download a community-led, free and open-source maps app that prioritizes transparency, privacy, and community involvement. With offline-capable features, no ads, and a commitment to not tracking personal information, this app offers a unique navigation experience that puts you in control of your data and journey.

What We Love

  • 🚀 Excellent offline map capabilities
  • 🔒 Respects user privacy
  • 👍 Clean and intuitive interface
  • 👍 Detailed trail maps

Room to Improve

  • 🐛 Inability to search by full address
  • 🐛 Inconsistent search results
  • 👎 Limited navigation features
Organic Maps・Offline Maps, GPS#3

Organic Maps・Offline Maps, GPS by Organic Maps OU

Offline GPS & Hiking Trails
Worth Considering
🗺️ Navigation
4.8😊(2.1K ratings)
Free
#71in Navigation
Organic Maps・Offline Maps, GPS screenshot 1
Organic Maps・Offline Maps, GPS screenshot 2
Organic Maps・Offline Maps, GPS screenshot 3
Organic Maps・Offline Maps, GPS screenshot 4

Explore detailed offline maps with unique places, cycling routes, hiking trails, and turn-by-turn navigation. Enjoy privacy-conscious, tracker-free browsing without ads or data collection. Support the independent community-driven project and try Organic Maps today!

What We Love

  • 🚀 Excellent offline maps
  • 🔒 Privacy-focused
  • 👍 Detailed and accurate maps
  • 👍 Easy to use interface

Room to Improve

  • 🐛 Occasional freezing or crashing issues
  • 🔋 Can be battery-intensive during navigation
  • 🔍 Search function could be improved

More Open Source Map apps to explore

4
Google Earth
Google Earth
Google Earth
Examine the planet
Free

Explore the world like never before with our immersive mapping application. View high-resolution satellite imagery, 3D terrain, buildings, and street views to experience the planet in incredible detail. Start exploring today!

✈️ Travel
(13K)
5
OpenStreets 4 Open Street Map
OpenStreets 4 Open Street Map
OpenStreets 4 Open Street Map
Amazing Ways to See the World
Free

OpenStreets is a smart social mapping tool that allows you to enjoy free and open maps, manage your favorite locations, and share them with friends and family. It's an all-in-one solution based on OpenStreetMap data, perfect for planning vacations, finding new restaurants, and staying connected with loved ones. Download it today and let your iPhone or iPad remember the places you love.

🗺️ Navigation
(14)
6
MAPS.ME: Offline Maps, GPS Nav
MAPS.ME: Offline Maps, GPS Nav
MAPS.ME: Offline Maps, GPS Nav
Navigation and hiking trails
Free

An app for offline maps and navigation trusted by millions worldwide. Features detailed offline maps, turn-by-turn navigation, travel guides, and up-to-date information. Perfect for travelers and everyday use. Visit support.maps.me for questions or download now!

✈️ Travel
(77K)
7
Streetly - Custom Map Designs
Streetly - Custom Map Designs
Streetly - Custom Map Designs
Creative Map Graphics
Free

Create custom map designs of any location or landmark with this easy-to-use app, choosing from various color schemes and editable details. Design your favorite places into graphic posters and share them on social media or save them for printing.

🎨 Graphics & Design
(7)
8
Scenic Map Grand Canyon
Scenic Map Grand Canyon
Scenic Map Grand Canyon
Offline 3D topo maps
Free

Explore breathtaking landscapes with this 3D topo map app, featuring offline vector map data and online satellite image overlays for added realism. Discover new areas, track your location, and customize your map experience with various features and settings, and expand coverage to the entire world with an in-app purchase.

🗺️ Navigation
(2)
9
RTAB-Map - 3D LiDAR Scanner
RTAB-Map - 3D LiDAR Scanner
RTAB-Map - 3D LiDAR Scanner
Open Source Visual/LiDAR SLAM
Free

This application enables real-time 3D scanning and mapping of environments using LiDAR, RGB-D, or stereo data, with online loop closure detection and map optimization. It allows users to create accurate 3D reconstructions, save and export maps in various formats, and even continue mapping sessions later.

🔧 Utilities
(35)
10
OpenMaps - Topographic maps
OpenMaps - Topographic maps
OpenMaps - Topographic maps
Open source topographic maps
Free

Explore your next outdoor adventure with comprehensive digital topographic maps, sourced from open-source data, to navigate routes with confidence. Download the app to access detailed maps, plan your excursions, and contribute to a community-driven mapping project.

🗺️ Navigation
(11)
11
Go Map!!
Go Map!!
Go Map!!
by Bryce Cogswell
Free

Create and edit information in OpenStreetMap globally using Go Map!! app, adding points of interest, editing nodes, ways, and areas, tracking location, resolving Notes, and collaborating with other mappers. Visit www.OpenStreetMap.org for more information. Sign up for free to make changes and contribute to the community mapping efforts.

🔧 Utilities
(319)
12
Mapply for Open Street Map
Mapply for Open Street Map
Mapply for Open Street Map
Street, Topo, Railway & Sea
Free

Explore the world in detail with this ultimate map viewer, featuring Open Street Map and tile-based layers for satellite views, hiking trails, topography, railway routes, seas, and more. Navigate roads, trails, and points of interest, and discover new outdoor adventures, transportation networks, and marine journeys with a range of specialized maps.

🗺️ Navigation
(44)
13
OpenMaps PRO Open Source Maps
OpenMaps PRO Open Source Maps
OpenMaps PRO Open Source Maps
Open Source Maps for Outdoor
$4.99

This outdoor companion app provides detailed, up-to-date maps for various activities like hiking, biking, and camping, utilizing open-source data to guide users through their adventures. Download the app to access a world of reliable and user-friendly mapping at your fingertips.

🗺️ Navigation
(1)
14
Mapillary
Mapillary
Mapillary
Street-level imagery
Free

This street-level imagery platform allows users to capture and contribute images of any place, combining them into a collaborative view of the world to improve maps, cities, and mobility. By joining the contributor network, users can create fresh street-level imagery, access a vast dataset, and utilize machine-extracted data to enhance maps and geospatial datasets.

📷 Photo & Video
(20)
15
Topo Maps+
Topo Maps+
Topo Maps+
Offline Maps & GPS Navigation
Free

Explore detailed offline topographic maps for hiking, camping, and outdoor adventures with our user-friendly app. Download now to navigate remote areas with ease and discover hidden gems off the beaten path.

🗺️ Navigation
(971)
16
Scenic Map
Scenic Map
Scenic Map
3D topo maps of the world
Free

This 3D topo map application provides coverage of the entire world, allowing users to stream and cache maps for use offline, and offers features such as satellite image overlays, GPS tracking, and customizable map styles. With its intuitive gestures and tools, users can explore the Earth's terrain in 3D, record and replay tracks, and even create routes from their current location to any point on the map.

🗺️ Navigation
(3)
17
Scenic Map Western USA
Scenic Map Western USA
Scenic Map Western USA
Offline 3D topo maps
$4.99

This application provides offline 3D topo maps of the Western USA and Hawaii, and online maps of the entire world, allowing users to navigate and explore terrain in a highly customizable and detailed environment. With features like GPS tracking, 3D viewing, and satellite image overlays, users can seamlessly switch between map styles and explore their surroundings with incredible detail, making it ideal for use in various modes of transportation or while hiking.

🗺️ Navigation
(12)
18
Railmap for Open Railway Map
Railmap for Open Railway Map
Railmap for Open Railway Map
Explore global train tracks
$2.99

Explore the world of train tracks with an application that offers three different map layers - Standard, Speed, and Signals. Discover and navigate global train tracks with ease and efficiency, while caching visited places for faster loading.

🔍 Reference
(597)
19
OsmoTagger
OsmoTagger
OsmoTagger
OpenStreetMap editor
Free
🗺️ Navigation
(0)
20
MapFactor Navigator - GPS Maps
MapFactor Navigator - GPS Maps
MapFactor Navigator - GPS Maps
Offline navigation for all
Free

An offline GPS navigation app with free maps from OpenStreetMaps, offering turn-by-turn voice guidance, speed limits, camera alerts, and various route options for different vehicles. Features include offline maps with postcodes, POI, favorite routes, and live HD traffic updates. Premium features like Head-Up Display and alternative routes are available. For feedback or assistance, email ios@mapfactor.com.

🗺️ Navigation
(802)