Building a Zero-Cost AI Feature in Flutter with Gemma 4 + Firebase

Short summary

Indie developers can build zero-cost AI features by running Gemma 4 models directly on users' phones with Flutter. Local inference eliminates API costs while Firebase syncs results and ensures privacy—user data never leaves the device. This architecture enables AI-powered apps to scale sustainably for bootstrapped teams.

• •Run Gemma 4 on-device with Flutter to eliminate API costs entirely
• •Firebase syncs AI outputs while raw user data stays on the phone
• •Scales infinitely for indie developers with zero marginal cost per user

Generated with AI, which can make mistakes.