7 honest comparisons
Sephir vs the universal AI sidebars.
Every comparison below is sourced from the competitor’s own Chrome Web Store reviews — verbatim, low-rating first. Between them they reach ~13.1M Chrome Web Store users. Sephir is built around the opposite incentives: BYOK on day one, lifetime price ladder, no auto-renew, working refund button.
Sephir vs AITOPIA.
011,000,000Chrome Web Store users
Multi-AI sidebar aggregator with a proprietary credit pool. ~1M Chrome Web Store users.
“Charged my card for a 1-year auto-renewal without any prior notice... they secretly processed a PARTIAL refund.”
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Sephir vs MaxAI.
02700,000Chrome Web Store users
Universal AI sidebar with right-click context menu. ~700K Chrome Web Store users.
“There is no option to cancel… Clicking on 'Your plan' and 'compare plan' only produces this same page.”
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Sephir vs Monica.
033,000,000Chrome Web Store users
All-in-one AI sidebar that resells tokens from a proprietary credit pool. ~3M Chrome Web Store users.
“Free trial messages run out in 2 hours and then you're forced to pay $20/month minimum.”
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Sephir vs Sider.
045,000,000Chrome Web Store users
AI sidebar built on a proprietary credit pool with daily caps. ~5M Chrome Web Store users.
“'No free version' — deceptive advertising in the listing.”
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Sephir vs Merlin.
051,000,000Chrome Web Store users
AI sidebar by Foyer Tech (Ctrl+M hotkey) bundling frontier OpenAI / Anthropic / Google models behind a credit-metered plan. ~1M Chrome Web Store users.
“I have a lifetime license via AppSumo and highly recommend you do not install this extension. It now injects annoying 'charitable' ads from a service called Give Freely.”
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Sephir vs HARPA AI.
06400,000Chrome Web Store users
Sidebar + automation engine wrapping ChatGPT, Claude, Gemini, DeepSeek behind a monthly subscription. ~400K Chrome Web Store users.
“Scam - you use your OWN AI API key and after 50 "uses" they charge you LOL.”
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Sephir vs ChatGPT for Google.
072,000,000Chrome Web Store users
Sidebar widget that injects AI answers next to Google/Bing/DuckDuckGo SERPs. Acquired by Butterfly Effect PTD Ltd, billed via Paddle. ~2M Chrome Web Store users.
“No access to ChatGPT unless Pro plan.”
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Try it free
One-time price. No credit pool.
Free tier covers BYOK + single-turn chat. Pro Lifetime unlocks the agent loop — $39 for the first 100 buyers, one-time payment.