Credits
Licenses and data sources
Peak Explorer is built on open data and open-source software. This page lists the sources used by the app and shown in the pictures on this website, with the attributions and license notices they require. The app has a shorter version of these credits under Settings › Licenses and Credits; this page is the complete and current version.
1. Map data: OpenStreetMap
Map data © OpenStreetMap contributors.
Contains information from OpenStreetMap, which is made available here under the Open Database License (ODbL).
OpenStreetMap data is used for the base map, trails and their grades (sac_scale, mtb:scale), points of interest, the coverage outlines of the map packs, and the land-cover and relief images derived from the packs. The auxiliary data fetched while building the base maps is also OpenStreetMap data under the ODbL: water polygons from osmdata.openstreetmap.de and lake center lines from the osm-lakelines project.
The screenshots on this website show maps produced from these packs (Produced Works under the ODbL); one attribution is shown on each page that contains them.
2. How the map packs are made (ODbL 4.6)
Peak Explorer's map packs (base map, trails and points of interest for each country) and their coverage outlines are derivative databases of OpenStreetMap data, made available under the Open Database License 1.0. Section 4.6 of the ODbL asks us to offer, free of charge and in machine-readable form, a description of how they are made.
The full method (source extracts and their dates, tools, exact commands, profiles and the outline algorithm) is published here as a plain text file, identical to the one included in the app:
Packs can be updated without a new version of the app, so this file is kept in step with the packs currently offered. Its content is also shown below.
Show the full method text
How the Peak Explorer map packs are made
=========================================
The map packs (base map "<id>", trails "<id>-sentieri", points of interest
"<id>-poi") and the coverage outlines shown by the app are derivative databases of
OpenStreetMap data and are made available under the Open Database License 1.0.
https://opendatacommons.org/licenses/odbl/1-0/
Map data (c) OpenStreetMap contributors: https://www.openstreetmap.org/copyright
Unaltered OpenStreetMap data: https://planet.openstreetmap.org, https://download.geofabrik.de
This file describes the method used to make them, as required by ODbL section 4.6.
1. Source data
Geofabrik daily extracts. Pack, replication time, extract:
ad 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/andorra-260930.osm.pbf
al 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/albania-260930.osm.pbf
at 2026-09-25T20:24:36Z https://download.geofabrik.de/europe/austria-260925.osm.pbf
ba 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/bosnia-herzegovina-260930.osm.pbf
be 2026-09-29T20:22:51Z https://download.geofabrik.de/europe/belgium-260929.osm.pbf
bg 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/bulgaria-260930.osm.pbf
by 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/belarus-260930.osm.pbf
ch 2026-09-25T20:24:36Z https://download.geofabrik.de/europe/switzerland-260925.osm.pbf
cy 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/cyprus-260930.osm.pbf
cz 2026-09-29T20:22:51Z https://download.geofabrik.de/europe/czech-republic-260929.osm.pbf
de 2026-09-25T20:24:36Z https://download.geofabrik.de/europe/germany-260925.osm.pbf
dk 2026-09-29T20:22:51Z https://download.geofabrik.de/europe/denmark-260929.osm.pbf
ee 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/estonia-260930.osm.pbf
es 2026-09-25T20:24:36Z https://download.geofabrik.de/europe/spain-260925.osm.pbf
fi 2026-09-29T20:22:51Z https://download.geofabrik.de/europe/finland-260929.osm.pbf
fo 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/faroe-islands-260930.osm.pbf
fr 2026-09-25T20:24:36Z https://download.geofabrik.de/europe/france-260925.osm.pbf
gb 2026-09-25T20:24:36Z https://download.geofabrik.de/europe/great-britain-260925.osm.pbf
gr 2026-09-29T20:22:51Z https://download.geofabrik.de/europe/greece-260929.osm.pbf
hr 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/croatia-260930.osm.pbf
hu 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/hungary-260930.osm.pbf
ic 2026-09-29T20:22:51Z https://download.geofabrik.de/africa/canary-islands-260929.osm.pbf
ie 2026-09-29T20:22:51Z https://download.geofabrik.de/europe/ireland-and-northern-ireland-260929.osm.pbf
im 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/isle-of-man-260930.osm.pbf
is 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/iceland-260930.osm.pbf
it 2026-09-25T20:24:36Z https://download.geofabrik.de/europe/italy-260925.osm.pbf
je 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/guernsey-jersey-260930.osm.pbf
li 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/liechtenstein-260930.osm.pbf
lt 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/lithuania-260930.osm.pbf
lu 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/luxembourg-260930.osm.pbf
lv 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/latvia-260930.osm.pbf
mc 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/monaco-260930.osm.pbf
md 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/moldova-260930.osm.pbf
me 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/montenegro-260930.osm.pbf
mk 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/macedonia-260930.osm.pbf
mt 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/malta-260930.osm.pbf
nl 2026-09-16T20:21:21Z https://download.geofabrik.de/europe/netherlands-260916.osm.pbf
no 2026-09-29T20:22:51Z https://download.geofabrik.de/europe/norway-260929.osm.pbf
pl 2026-09-16T20:21:21Z https://download.geofabrik.de/europe/poland-260916.osm.pbf
pt 2026-09-29T20:22:51Z https://download.geofabrik.de/europe/portugal-260929.osm.pbf
ro 2026-09-29T20:22:51Z https://download.geofabrik.de/europe/romania-260929.osm.pbf
rs 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/serbia-260930.osm.pbf
se 2026-09-16T20:21:21Z https://download.geofabrik.de/europe/sweden-260916.osm.pbf
si 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/slovenia-260930.osm.pbf
sk 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/slovakia-260930.osm.pbf
ua 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/ukraine-260930.osm.pbf
xk 2026-09-30T20:22:42Z https://download.geofabrik.de/europe/kosovo-260930.osm.pbf
2. Tool
Planetiler 0.10.2 with its built-in OpenMapTiles profile (schema 3.16.0):
https://github.com/onthegomap/planetiler/releases/download/v0.10.2/planetiler.jar
3. Base maps
it:
java -jar planetiler.jar --osm-path=<extract> --output=<id>.pmtiles --download
ad al at ba be bg by ch cy cz de dk ee es fi fo fr gb gr hr hu ic ie im is je li lt lu lv mc md me mk mt nl no pl pt ro rs se si sk ua xk:
java -jar planetiler.jar --osm-path=<extract> --output=<id>.pmtiles --download --exclude_layers=housenumber,aerodrome_label
"--download" fetches the profile's auxiliary data: OSM water polygons
(osmdata.openstreetmap.de, ODbL), OSM lake centerlines (github.com/acalcutt/osm-lakelines,
ODbL), Natural Earth (public domain).
4. Trails and points of interest
java -jar planetiler.jar generate-custom --schema=<profile>.yml --pbf=<extract> --output=<file>.pmtiles
Profile used by each pack:
poi-outdoor.yml: ad al at ba be bg by ch cy cz de dk ee es fi fo fr gb gr hr hu ic ie im is it je li lt lu lv mc md me mk mt nl no pl pt ro rs se si sk ua xk
sentieri.yml: ad al at ba be bg by ch cy cz de dk ee es fi fo fr gb gr hr hu ic ie im is it je li lt lu lv mc md me mk mt nl no pl pt ro rs se si sk ua xk
--- poi-outdoor.yml ---
schema_name: Outdoor POI v2
attribution: © OpenStreetMap contributors
args:
pbf:
type: string
sources:
osm:
type: osm
local_path: '${args.pbf}'
layers:
- id: outdoor_poi
features:
- source: osm
geometry: point
min_zoom: 11
include_when:
tourism: alpine_hut
attributes:
- { key: kind, value: rifugio }
- key: name
- key: ele
- source: osm
geometry: polygon_centroid
min_zoom: 11
include_when:
tourism: alpine_hut
attributes:
- { key: kind, value: rifugio }
- key: name
- key: ele
- source: osm
geometry: point
min_zoom: 11
include_when:
tourism: wilderness_hut
attributes:
- { key: kind, value: bivacco }
- key: name
- key: ele
- source: osm
geometry: polygon_centroid
min_zoom: 11
include_when:
tourism: wilderness_hut
attributes:
- { key: kind, value: bivacco }
- key: name
- key: ele
- source: osm
geometry: point
min_zoom: 13
include_when:
amenity: shelter
attributes:
- { key: kind, value: riparo }
- key: name
- key: ele
- source: osm
geometry: point
min_zoom: 12
include_when:
natural: spring
attributes:
- { key: kind, value: fonte }
- key: name
- key: ele
- source: osm
geometry: point
min_zoom: 13
include_when:
amenity: drinking_water
exclude_when:
natural: spring
attributes:
- { key: kind, value: fonte }
- key: name
- key: ele
- source: osm
geometry: point
min_zoom: 12
include_when:
waterway: waterfall
attributes:
- { key: kind, value: cascata }
- key: name
- key: ele
- source: osm
geometry: point
min_zoom: 13
include_when:
natural: cave_entrance
attributes:
- { key: kind, value: grotta }
- key: name
- key: ele
- source: osm
geometry: point
min_zoom: 12
include_when:
tourism: [camp_site, caravan_site]
attributes:
- { key: kind, value: campeggio }
- key: name
- key: ele
- source: osm
geometry: polygon_centroid
min_zoom: 12
include_when:
tourism: [camp_site, caravan_site]
attributes:
- { key: kind, value: campeggio }
- key: name
- key: ele
- source: osm
geometry: point
min_zoom: 13
include_when:
tourism: picnic_site
attributes:
- { key: kind, value: picnic }
- key: name
- key: ele
- source: osm
geometry: point
min_zoom: 12
include_when:
tourism: viewpoint
attributes:
- { key: kind, value: panorama }
- key: name
- key: ele
--- sentieri.yml ---
schema_name: Graded trails v2
attribution: © OpenStreetMap contributors
args:
pbf:
type: string
sources:
osm:
type: osm
local_path: '${args.pbf}'
layers:
- id: sentieri
features:
- source: osm
geometry: line
min_zoom: 10
min_size: 0
include_when:
__any__:
sac_scale: __any__
"mtb:scale": __any__
attributes:
- key: sac_scale
- key: "mtb:scale"
- key: name
- key: ref
- key: surface
5. Coverage outlines
For each base map: every zoom-11 tile containing at least one feature of the
landcover, landuse, building, poi or mountain_peak layers, or a transportation
feature other than a ferry. A zoom-11 tile with one of its 8 neighbours failing
this test is replaced by its zoom-13 tiles that pass it; zoom-13 tiles outside
the passing zoom-11 tiles are added if they pass, otherwise their holes of up to
6 km2 in the water layer (islets) are added. The union is buffered +0.002 deg,
-0.001 deg and simplified 0.001 deg; while it has more than 15,000 vertices it is
buffered +d, -0.75d and simplified t, for (d, t) = (0.004, 0.0015), (0.01, 0.003),
(0.02, 0.006), (0.04, 0.012).
Each outline is then split with the Natural Earth admin-0 polygons (ic's
territory is the box -18.30, 27.50, -13.25, 29.60, taken out of the other
countries; ie also owns gb and je also owns gg) into: the piece inside its own
country, plus the countries without a pack; one piece inside each other country
with a pack; the pieces outside every country, each shared by the packs that
reach it, ordered by distance. Pieces are made disjoint in alphabetical order of
pack id, pieces under 1e-6 deg2 are dropped, coordinates are rounded to 4 decimals.
3. OpenMapTiles
© OpenMapTiles © OpenStreetMap contributors.
The map packs follow the OpenMapTiles vector tile schema (version 3.16.0), whose design is licensed under CC BY 4.0; the OpenMapTiles code is licensed under the BSD 3-Clause License.
4. Terrain: Mapzen / AWS Terrain Tiles
Hillshading, contour lines, 3D relief and elevation profiles are derived from the Mapzen Terrain Tiles (terrarium format, hosted on Amazon Web Services). Their sources require the following attributions:
- ArcticDEM terrain data DEM(s) were created from DigitalGlobe, Inc., imagery and funded under National Science Foundation awards 1043681, 1559691, and 1542736;
- Australia terrain data © Commonwealth of Australia (Geoscience Australia) 2017;
- Austria terrain data © offene Daten Österreichs – Digitales Geländemodell (DGM) Österreich;
- Canada terrain data contains information licensed under the Open Government Licence – Canada;
- Europe terrain data produced using Copernicus data and information funded by the European Union - EU-DEM layers;
- Global ETOPO1 terrain data U.S. National Oceanic and Atmospheric Administration;
- Mexico terrain data source: INEGI, Continental relief, 2016;
- New Zealand terrain data Copyright 2011 Crown copyright (c) Land Information New Zealand and the New Zealand Government (All rights reserved);
- Norway terrain data © Kartverket;
- United Kingdom terrain data © Environment Agency copyright and/or database right 2015. All rights reserved;
- United States 3DEP (formerly NED) and global GMTED2010 and SRTM terrain data courtesy of the U.S. Geological Survey.
Modified by Peak Explorer: elevations truncated to whole metres, flat tiles omitted; hillshading, contour lines, 3D relief and elevation profiles derived from them.
Norway data licensed under CC BY 4.0 (creativecommons.org/licenses/by/4.0), Austria data under CC BY 3.0 AT (creativecommons.org/licenses/by/3.0/at), United Kingdom data under the Open Government Licence v3.0 (nationalarchives.gov.uk/doc/open-government-licence/version/3).
SRTM, GMTED2010 and ETOPO1 are U.S. Government works, not subject to copyright protection within the United States.
5. Natural Earth and Wikidata
- Natural Earth (public domain): country outlines and names, land borders and oceans, and auxiliary data used to build and split the map packs. Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com.
- Wikidata (CC0 1.0): some translated sea names.
6. Weather sources
Weather data is fetched live, only while the weather layer is on. The app decodes, reprojects and recolors the radar and lightning images to draw them on the map.
| Source | Used for | Attribution and license |
|---|---|---|
| EUMETNET OPERA, Open Radar Data | Precipitation radar, Europe | Radar © EUMETNET OPERA – Open Radar Data, licensed under CC BY 4.0. Reprojected and recolored by Peak Explorer. |
| Radar-DPC, Dipartimento della Protezione Civile | Precipitation radar, Italy | Radar-DPC, Dipartimento della Protezione Civile, licensed under CC BY-SA 4.0. Reprojected and recolored by Peak Explorer; the resulting image is under the same license. |
| EUMETSAT | Lightning, Europe, Africa, Middle East and Atlantic (Meteosat Lightning Imager, Accumulated Flash Area) | Contains modified EUMETSAT Meteosat product 2026 – ©EUMETSAT 2026. Core product under the EUMETSAT Data Policy (CC BY 4.0). |
| NOAA / National Weather Service | Precipitation radar, United States | NOAA / National Weather Service. Public domain (U.S. Government work). |
| NOAA nowCOAST | Lightning density, Americas, Atlantic and Pacific | NOAA nowCOAST. Public domain (U.S. Government work). |
| Environment and Climate Change Canada | Precipitation radar, Canada (GeoMet) | Contains information licenced under the Data Server End-use Licence of Environment and Climate Change Canada. |
| MET Norway (Norwegian Meteorological Institute) | Hour-by-hour point forecasts (Locationforecast 2.0) | Weather data from MET Norway. Licensed under CC BY 4.0 and the Norwegian Licence for Open Government Data (NLOD) 2.0 (api.met.no/doc/License). |
None of these organizations endorses Peak Explorer, and the app is not an official service of any of them.
7. Software
MapLibre Native for iOS 6.28.0
The topo map is drawn by MapLibre Native, which ships inside the app under the BSD 2-Clause License:
BSD 2-Clause License Copyright (c) 2021 MapLibre contributors Copyright (c) 2018-2021 MapTiler.com Copyright (c) 2014-2020 Mapbox Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
MapLibre Native includes third-party components (among them Boost, RapidJSON, FreeType, HarfBuzz, nlohmann JSON, FSST, FastPFOR, SIMD Everywhere, protozero, earcut.hpp and other Mapbox libraries, and Apple's metal-cpp) under the ISC, MIT, BSD, Boost, Apache 2.0, FreeType and curl licenses. Their full notices are reproduced here: maplibre-native-LICENSES.core.txt (copied from LICENSES.core.md at ios-v6.28.0). The MapLibre license is also available as a text file.
Tools used to build the map packs
These tools are not part of the app; they are credited with thanks.
- Planetiler 0.10.2, Apache License 2.0.
- go-pmtiles (Protomaps), BSD 3-Clause License.
- maplibre-contour, pmtiles.js and MapLibre GL JS, BSD 3-Clause License, used locally to generate contour lines.
8. Fonts
- Bricolage Grotesque: Copyright 2022 The Bricolage Grotesque Project Authors (github.com/ateliertriay/bricolage).
- Archivo: Copyright 2020 The Archivo Project Authors (github.com/Omnibus-Type/Archivo).
- Noto Sans (map labels in the app, from the OpenMapTiles fonts, including a version modified by Peak Explorer to adjust accented Greek capitals): Copyright 2022 The Noto Project Authors (github.com/notofonts/latin-greek-cyrillic).
All three are licensed under the SIL Open Font License 1.1. The fonts used on this website are Latin subsets of Bricolage Grotesque and Archivo, converted to WOFF2 and served from this site; their licenses are here: OFL-BricolageGrotesque.txt, OFL-Archivo.txt.
9. Images and trademarks
- The app icon, the map symbols and the screenshots on this website are © Eduard Fartade and may not be reused without permission, except for the third-party material they contain (map data, relief, fonts), which remains available under the licenses listed above. The maps in the screenshots carry the attributions listed above.
- Apple, iPhone, Apple Watch and iCloud are trademarks of Apple Inc., registered in the U.S. and other countries and regions. App Store is a service mark of Apple Inc. Peak Explorer is an independent app and is not affiliated with or endorsed by Apple.
10. Disclaimer
Third-party data and software are provided by their licensors "as is", without warranties of any kind, as stated in their respective licenses. Where the app modifies licensed material (for example by reprojecting, recoloring or simplifying it), this is indicated above.