mobile-ai
(3)
The $10,000 Tennis Court Is Now a Phone
SwingVision took the machinery of elite tennis, squeezed it into one camera, and handed the argument over a line call to an iPhone. The trick was not merely teaching a phone to see. It was deciding what ordinary players would actually pay to know.
Motorola Lost the Smartphone Race. Then It Learned to Sell the Fold.
The company that put a radio in the car and a phone in the hand spent years being bought, sold and outpaced. Its comeback offers a sharper lesson: heritage works only when it is attached to a product people can recognize across the room.
Cactus
Cactus is a cross-platform, open-source AI inference engine built in C/C++ to run language, speech, and vision models directly on smartphones, laptops, wearables, and other low-power edge hardware. It gives mobile developers Flutter, React Native, Kotlin, and Swift SDKs to deploy quantized models on-device - cutting latency to under 100ms, keeping data private, working offline, and avoiding cloud API bills - with automatic cloud fallback for heavier tasks. A YC Summer 2025 company, Cactus already powers production apps serving 500,000+ weekly inference tasks.