100,000 users · Honest comparison
Sephir vs Superpower ChatGPT.
Folders + prompt library + bulk export for ChatGPT. ~100K weekly users. Below: what Superpower ChatGPT users actually say, and how Sephir is built around the opposite incentives.
From Superpower ChatGPT’s Chrome Web Store reviews
What real users actually said.
- “The one thing I wanted — auto-hide older messages — is paid. Why would I spend $10/mo?”
- “SuperPower will collect user images and upload them to their own servers... only a paid account is required to delete these files.”
- “How did this extension get my email address and sign me up for a newsletter? Instant 1-star.”
- “Whatever it did to my chats basically reordered and renamed loads of chats... lost contents now.”
How Sephir is different
Built around the opposite incentives.
- 01Conversation history is local. Nothing uploads to our servers unless you opt in.
- 02Telemetry is opt-in with a transparent payload list. Disabled by default.
- 03No email harvesting on install. The extension works without a sephir.app account.
- 04The agent loop runs on real tool calls with an audit timeline — not on automation that silently mutates your chats.
Try it free
The agent layer for the browser, without the auto-renew.
Free tier covers BYOK + single-turn chat. Pro Lifetime unlocks the agent loop, $39 for the first 500 buyers, one-time payment.