Sign of
Love
Sign language, taught by Apple Vision Pro.
Bolted · Design and engineering, since 2014
Intelligence is getting cheap. Judgment is not.
3,772 screens, each one an answer a machine could give.
One light picks the one worth sending.
How we work
Someone has to stand behind what ships.
AI does the routine work. One of us reviews every change and tests it on a real device.
Built on proof
Designed to the millimetre. Proven on the device.
Every app is tested on the hardware it ships to, with a written account of why it works.
SC 01 · Abundance
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Sign of
Hatch
A daily collectible for iPhone, from the brand to the films.
Piața
Unirii
Timișoara's old square, to walk in a browser.
Snug
A pocket puzzle where one swipe moves every piece.
Truthdots
A private diary for people living with chronic hives.
Mugio
A game you play with your face.
Lightline
Hard ideas, explained as you scroll.
Company
- Founders
- Sebastian and Andres
- Since
- 2014
- Where
- California
A small company, on purpose The two of us lead every project, and nothing ships until one of us has checked it.
12MPeople a year use apps we have worked on
10 yrsOn safety-critical medical alerts
14 yrsBuilding native apps
7Platforms we build foriOS, macOS, watchOS, visionOS, tvOS, Android and Windows
Clients
We build with
What we doServices
Design and engineering, in one team. The people who design your app also build it.
Product designBrand, interface, motion and launch films for apps people keep coming back to.Hatch · Snug · Mugio
Native engineeringFast, private apps for iPhone, Apple Watch, Vision Pro and the Mac, from Bluetooth devices to AI that runs on the device.Sign of Love · Otta · Iris Loop
Connected healthApps that work with medical sensors, and the testing and documentation regulators expect.Truthdots · Reach
Reach · launching November 2026
Our first product: medical alerts that get through.
Phones are built to stay quiet. Reach checks that a medical alert still reaches the person, on every iOS release, on real devices.
What it will test- Focus and Do Not Disturb
- Deep sleep and background
- Permissions and resets
- Accessories and volume
- Bluetooth reconnection
- OS betas and updates
- Time-sensitive and critical
- Delivery receipts
Start a project
Tell us what you’re building.
An app, a device, a redesign or just an idea. One of us reads it and replies within one working day.