The Nio family software studio.
4 Sons is the app studio of Sky, LLC — a small family-run company where we design, build, and ship software together.
We build apps
Native iOS and web apps, designed and developed in-house under the Sky, LLC umbrella.
A family workshop
The next generation learns to build real, published software — mentored, hands-on.
Published as Sky, LLC
Everything we release ships under our company on the App Store.
Parenting, simplified
Our earlier project — fast, no-nonsense parenting help. Read the blog →
The four sons
Each brother has his own corner of this site, published from his own repository when he is ready.
Sami
The eldest of the four. Page in preparation.
coming soon
Benji
Second of the four. Page in preparation.
coming soon
David
Data scientist and app builder. Ships iMessage games under his own name and keeps the family's numbers honest.
Joni
The youngest, and the traveller of the four. Currently in Tokyo; his pages are for family eyes.
Get in touch: hello@4sons.com