Onsen tech stack
AI-powered journaling for mental wellness
onsenapp.com ↗Checked Sep 2026
The stack
On its website: HTTP: onsenapp.com responds with x-nextjs-cache; HTTP: www.onsenapp.com responds with x-nextjs-cache source · Oct 2026 ↗
“We use OpenAI to power Onsen's AI features with cutting-edge technology. Our integration includes OpenAI completion APIs (GPT-4o and GPT-4o-mini) for advanced text generation, text-to-speech (TTS) for natural voice outputs, speech recognition (Whisper) for acc…” — the maker, Sep 2026 ↗
“We host all of Onsen's cloud infrastructure on AWS. AWS provides the robust performance and security we need to deliver a seamless user experience.” — the maker, Sep 2026 ↗
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