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Credits

Viaxen Log is built on excellent open-source work. Thank you to everyone listed here.

Services

Google AdMob Advertising — free tier only
Google APIs Terms

Serves the single App Open ad shown at launch. The one-time Remove ads purchase disables it permanently.

Presents the GDPR consent form before any ad loads for users in the EU and EEA, and records the choice.

Google Play Billing In-app purchase — Android
Apache 2.0

Processes and restores the one-time Remove ads purchase on Android. Viaxen never sees payment details.

Apple's StoreKit 2 framework, used for the one-time Remove ads purchase and Restore purchases on iOS.

Fonts

Inter Primary typeface — app & website
SIL OFL 1.1

A variable sans-serif typeface by Rasmus Andersson, optimized for screen legibility. Every metric in the app is set in its tabular figures.

Icons

Tabler Icons UI icons — app & website
MIT

Over 5,000 open-source outline icons by Paweł Kuna. The v3.31.0 webfont is bundled in both apps and drawn inline on this site.

Libraries & Frameworks

Jetpack Compose User interface — Android
Apache 2.0

Android's declarative UI toolkit. Viaxen's Android interface is custom-drawn on it rather than using Material components.

Room (Jetpack) Local database — Android
Apache 2.0

SQLite persistence for vehicles, logs and reminders. Everything it stores stays on the device.

WorkManager Reminder scheduling — Android
Apache 2.0

Schedules the background check that fires local maintenance and renewal notifications.

DataStore Settings storage — Android
Apache 2.0

Stores the active vehicle, theme and Remove-ads entitlement flag.

Coil Image loading — Android
Apache 2.0

Loads the receipt and document photos you attach to logs, from local storage only.

SwiftUI & SwiftData User interface and local database — iOS
Apple Developer Terms

Apple's declarative UI and persistence frameworks. The iOS logbook is a SwiftData store on your device.

Google Mobile Ads SDK Advertising — both platforms
Google APIs Terms

The AdMob client SDK that loads and presents the App Open ad in the free tier.

Astro Website framework
MIT

Static site generator used to build this marketing and legal site.

Tailwind CSS Website styling
MIT

Utility-first CSS framework used for every style on this site.

Something we use and haven't credited? Tell us at viaxen.support@juanlobby.com and we'll add it.