ChatVault: End‑to‑End WhatsApp Backup

Mobile users want the assurance that their WhatsApp chats stay entirely under their control, yet current backup tools expose data to servers. ChatVault delivers a client‑only, 256‑bit‑key encrypted backup system that stores files locally or in a personal cloud, allowing cross‑device restore without the server ever accessing the chats.

Quantitative Score Breakdown

complaint frequency

1.5

growth rate

competition density

10.5

monetization potential

technical feasibility

7.5

search interest

4.8

Evidence Signal (1)

Raw Posts

reddit • r/sideproject

I built a WhatsApp backup app where even my own server can't read your chats — locked with WhatsApp's own 64-digit key

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