Best Open Source Map Apps

172+ iOS apps curated and reviewed

4.6 avg rating
19 free apps
Updated August 2026

With an average user rating of 4.6★, the open source map category is one of the App Store's strongest. Browse all 172+ apps we track, sorted so the most loved ones surface first.

Compare top Open Source Map Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1OsmAnd Maps Travel & NavigateOsmAnd Maps Travel & NavigateFree4.6★ (5.6K)NoYesAug 2026
2CoMapsCoMapsFree4.7★ (115)NoNoAug 2026
3Organic Maps・Offline Maps, GPSOrganic Maps・Offline Maps, GPSFree4.7★ (2.8K)NoNoAug 2026
4OSM MapsOSM MapsFreeNoNoJul 2026
5OpenStreets 4 Open Street MapOpenStreets 4 Open Street MapFree4.8★ (19)NoNoAug 2026
6Esri Arcgis Online Open DataEsri Arcgis Online Open DataFreeNoYesJun 2026
7Open Maps: Create & ShareOpen Maps: Create & ShareFreeNoYesJul 2026
8TCG Map-graphyTCG Map-graphyFree5.0★ (3)NoNoMay 2026

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😐(5.6K ratings)
FreeIn-App Purchases
#81in 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

Navigate and plan trips offline with detailed world maps based on OpenStreetMap. Customize routes for various vehicles, record GPX tracks, and discover points of interest without an internet connection.

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😊(115 ratings)
Free
CoMaps screenshot 1
CoMaps screenshot 2
CoMaps screenshot 3

Navigate your world with a free, open-source mapping application focused on privacy and offline functionality. Discover detailed maps, plan trips without cellular service, and enjoy essential navigation features. It's community-built and respects your data.

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

Hiking Trails & GPS Navigation
Worth Considering
🗺️ Navigation
4.7😊(2.8K ratings)
Free
#36in 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
Organic Maps・Offline Maps, GPS screenshot 5
Organic Maps・Offline Maps, GPS screenshot 6

Navigate and explore with detailed offline maps and GPS guidance. Plan, record, and import routes for travel, hikes, and rides without needing an internet connection. Enjoy privacy-first, battery-efficient navigation with extensive points of interest.

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
OSM Maps
OSM Maps
OSM Maps
Map viewer, images and tracks
Free

View OSM maps from various sources, create notes, and add multimedia like photos, audio, and video. Record and manage routes and tracks in GPX format, with iCloud synchronization and desktop backup options.

View OSM maps from multiple sourcesCreate and edit notes with multimediaRecord and manage GPX routes and tracks
🗺️ Navigation
(0)
free
5
OpenStreets 4 Open Street Map
OpenStreets 4 Open Street Map
OpenStreets 4 Open Street Map
Amazing Ways to See the World
Free

This app offers a smart social mapping solution using OpenStreetMap data. It allows users to manage favorite locations, share them with friends, and access maps offline. Plan trips or simply remember great spots with this versatile navigation tool.

OpenStreetMap integrationOffline map accessFavorite location management
🗺️ Navigation
(19)
free
6
Esri Arcgis Online Open Data
Esri Arcgis Online Open Data
Esri Arcgis Online Open Data
Esri Arcgis Open Data Viewer
Free
🌟 Lifestyle
(0)
7
Open Maps: Create & Share
Open Maps: Create & Share
Open Maps: Create & Share
Build & Share Interactive Maps
Free
🗺️ Navigation
(0)
8
TCG Map-graphy
TCG Map-graphy
TCG Map-graphy
by Tokyo Cartographic CO.,LTD.
Free

Explore the world through detailed map graphics derived from OpenStreetMap data. This app focuses on visual representation, allowing you to view global cities, coastlines, rivers, and road networks at any scale without typical map functionalities like search or annotation.

View OSM data at any scaleExplore global cities, coastlines, and riversGraphical map view filters
🎬 Entertainment
(3)
free
9
Mapply for Open Street Map
Mapply for Open Street Map
Mapply for Open Street Map
Street, Topo, Railway & Sea
Free

Explore detailed maps of the world, including transport networks, hiking trails, and topography. This app leverages OpenStreetMap and other specialized map layers for comprehensive navigation and outdoor adventure planning. Enjoy offline caching for uninterrupted exploration.

OpenStreetMap integrationSpecialized map layers (cycling, transport, sea, trails)Topographical data
🗺️ Navigation
(51)
ad-supported
10
Map Discovery
Map Discovery
Map Discovery
Mapping and Data Visualization
Free
🔧 Utilities
(0)
11
Open-Map
Open-Map
Open-Map
Multiformat open standard maps
$2.99

Explore the world with over 60 interactive map types, offering diverse styles and up-to-date data. Easily switch between maps while preserving your position and zoom level. Ideal for cartography enthusiasts and anyone interested in varied map representations.

Over 60 diverse map typesInteractive zoom and panInstant map switching
🌟 Lifestyle
(1)
paid
12
GSI Map++
GSI Map++
GSI Map++
Japan maps
Free

This app displays maps from the Geospatial Information Authority of Japan, offering various map types and measurement tools. It allows integration with Apple Maps or Google Maps for directions and provides location details with memo and photo options.

Display GSI mapsIntegrate with Apple/Google MapsSwitch to OpenStreetMap
🗺️ Navigation
(0)
free with in-app purchases
13
Field Mapplet RT
Field Mapplet RT
Field Mapplet RT
by Spatial Wave Inc.
Free
📊 Productivity
(0)
14
Go Map!!
Go Map!!
Go Map!!
by Bryce Cogswell
Free

Contribute to the world's largest collaborative map by adding and editing points of interest, streets, paths, and more. Track your location, resolve notes, and work offline with full undo/redo capabilities. Explore existing map data and see who made recent edits.

Create and edit OpenStreetMap dataAdd points of interest, streets, and pathsTrack location and heading
🔧 Utilities
(319)
free
15
Streetly - Custom Map Designs
Streetly - Custom Map Designs
Streetly - Custom Map Designs
Creative Map Graphics
Free

Design personalized map graphics of any location. Highlight favorite places, hometowns, or dream destinations with custom color schemes and editable details. Share or save your unique map designs for printing.

Custom map design creationSearch any locationMultiple color schemes
🎨 Graphics & Design
(7)
free
16
Longdo Map
Longdo Map
Longdo Map
by Metamedia Technology Co., Ltd.
Free
🗺️ Navigation
(0)
17
OsmoTagger
OsmoTagger
OsmoTagger
OpenStreetMap editor
Free
🗺️ Navigation
(0)
18
Map.ca
Map.ca
Map.ca
Pin your whole community
Free
🌐 Social Networking
(0)
19
Northumberland  Map
Northumberland  Map
Northumberland Map
by Jonathan Shutt
Free

Access detailed maps of an area without needing a signal. Ideal for outdoor activities like hiking and cycling, it shows footpaths, contours, and allows searching for natural landmarks. Find your location using GPS and customize map features.

Offline map accessDetailed footpaths and contoursSearch for natural landmarks
🗺️ Navigation
(0)
free
20
Inveo Maps
Inveo Maps
Inveo Maps
by JOHN MONTAGUE HOWARD
Free
$0.99 | 100% OFF
🗺️ Navigation
(0)

FAQ about Open Source Map

What are the best open source map apps for iPhone?
OsmAnd Maps Travel & Navigate tops our open source map apps ranking as of August 2026, with a 4.6-star average from 5.6K App Store ratings, and it's free to download.
Yes — 19 of the top open source map apps we rank are free to download, including OsmAnd Maps Travel & Navigate and CoMaps.
OsmAnd Maps Travel & Navigate has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 172+ open source map apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides offline world maps based on OpenStreetMap, allowing users to navigate and plan trips without an internet connection. It offers features like customizable route planning for various vehicles, GPX track recording, and the ability to search for points of interest.
Key features include offline map viewing with customizable styles (e.g., topographic, nautical), GPS navigation with route plotting, route planning point-by-point, GPX track recording and management, and the ability to make edits to OpenStreetMap data.