Open Source Licenses

Acknowledgement

WiFi Map would not exist without the work of a large number of open-source maintainers, most of whom are unpaid. This page lists every third-party component the App and its backend depend on, along with the licence it is used under and a link to its source.

Where a licence requires attribution, this page is that attribution. Where a licence requires that its text accompany the software, §7 reproduces it.

1 Framework

2 Dart & Flutter Packages

2.1 State, routing and utilities

2.2 Storage and security

2.3 Networking

2.4 Platform and hardware

The WiFi layer itself — scanning, throttle budgeting, the add-network intent — is hand-written Kotlin in this project rather than a third-party plugin, and is covered by our own copyright.

2.5 Interface

2.6 Development only

These are used to build the App and are not shipped inside it: flutter_lints (BSD-3-Clause), drift_dev (MIT), build_runner (BSD-3-Clause), and flutter_test (BSD-3-Clause).

3 Google SDKs

4 Typefaces

All three typefaces are used under the SIL Open Font License 1.1 and are vendored into the App so it renders correctly offline on first launch.

The SIL OFL permits use, study, modification and redistribution, including in bundled software, provided the fonts are not sold on their own and any modified version is not distributed under a reserved font name. Full text: openfontlicense.org ↗.

Iconography in the App is Google's Material Symbols, used under the Apache License 2.0.

5 Backend

The community map API runs on Cloudflare Workers and uses:

6 Services & Data Sources

7 Licence Texts

7.1 MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

7.2 BSD 3-Clause License

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.

2. 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.

3. Neither the name of the copyright holder nor the names of its contributors
   may be used to endorse or promote products derived from this software
   without specific prior written permission.

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 HOLDER 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.

7.3 Apache License 2.0

Used by google_mobile_ads, TypeScript and Material Symbols. The full text is at apache.org/licenses/LICENSE-2.0 ↗. In summary, it grants a perpetual, worldwide, royalty-free copyright and patent licence to use, reproduce, modify and distribute the work, provided that a copy of the licence is included, modified files are marked, and existing notices are retained. The work is provided "AS IS", without warranties or conditions of any kind.

7.4 SIL Open Font License 1.1

Used by Sora, Hanken Grotesk and JetBrains Mono. The full text is at openfontlicense.org ↗. In summary, the fonts may be used, studied, modified and redistributed freely, including bundled with software, provided they are not sold by themselves, that this notice accompanies them, and that any modified version is not distributed under a Reserved Font Name. The fonts are provided "AS IS", without warranty of any kind.

8 In the App

The same attribution is reachable inside the App at Settings → About this app → Open source licenses, which renders the licence text bundled with each package at build time. Where that in-app list and this page differ, the in-app list is authoritative for the version you have installed — it is generated from what actually shipped, whereas this page is maintained by hand.

Package versions for the release you are running are shown alongside the app version in Settings → About this app.

9 Corrections

If your project is listed with the wrong licence, the wrong attribution, or is missing entirely, please tell us and we will fix it promptly. Attribution is not a formality — it is the condition on which we are permitted to use your work.

Contact

contact@epsilondevelopers.xyz

Subject line

License attribution — WiFi Map

Response

Within 7 business days