ArchFic
A fan-made AO3 reader with offline downloads, text-to-speech, and 50+ language translation.
Independent app studio
We build mobile apps, end to end.
Consumer apps for iOS and Android, designed and engineered under one roof. The catalog keeps growing.
3 apps live iOS & Android Private by default
Our apps.
Different problems, different audiences. One standard of craft.
Radiara
100,000+ live radio stations worldwide. Free and always on.
Is This AI
Detect AI-made images, text, and audio, fully on your device. Nothing is uploaded.
Sleep Sounds
Drift off to calming soundscapes, guided sleep sessions, and breathing exercises.
Preview Coming soon
Scanly
Scan any product or QR code and instantly know what is inside. No account needed.
Preview Coming soon
Word Puzzles
Three word puzzles in one calm app, and every one of them plays with no wifi.
Preview Coming soon
More in the works
New apps in the forge.
Where we are headed.
A steady pipeline of consumer apps for iOS and Android. Shipped, building, and planned.
How we build.
One team carries each app from first sketch to a store listing people trust.
01
Design
Product thinking and interface design, tuned per app, not from a template.
02
Build
Native-feeling apps with their own backends where it counts.
03
Launch
Store listings, assets, and compliance for App Store and Google Play.
04
Support
Updates, fixes, and new features long after the first release.
What every app shares.
Whatever the category, the apps follow the same principles.
Privacy
Private by design
On-device processing and local storage. Your data does not leave your phone unless you ask it to.
Value
Free to start
Generous free tiers and a clean, focused experience in every app.
Reach
iOS and Android
Every app, both platforms.
Access
No account needed
Open the app and go.
Care
Built to last
Updates, fixes, and new features long after launch day.
HDFoundry
Independent app studio
What people are saying.
Real reviews from the stores.
★★★★★
"Finally a clean AO3 reader. Offline downloads and text-to-speech make my commute so much better."
Google Play ArchFic
★★★★★
"The on-device translation is a game changer. I read fics in three languages now, all offline after the download."
App Store ArchFic
★★★★★
"Clean UI, fast switching between stations, Android Auto support. Replaced three other radio apps on my phone with this one."
Google Play Radiara
About HDFoundry
An independent studio, building for the long run.
HDFoundry designs, builds, and supports its own consumer apps for iOS and Android. One team carries each app from first sketch to a store listing people trust, and keeps shipping updates long after launch. Apps are free to try and private by default, with data kept on your device wherever possible.
Studio inquiries: [email protected]
Find an app you will keep.
Free to try, private by default, and supported long after launch.
Need help with an app? [email protected]