FenneX | AI Reply Copilot for X & Twitter
FenneX is a free AI Chrome extension for X/Twitter. Smart Radar scans your feed in real time, scores tweets 0–100, and generates contextual replies in seconds — powered by Groq, OpenAI, or Claude.
Start free — no credit card ever. Upgrade when you're ready.
Why Growing on X Without AI Is a Losing Battle
Hours lost
Endless scrolling to find relevant conversations worth joining.
Ignored replies
Generic AI responses that sound robotic and drive zero engagement.
Missed opportunities
High‑potential tweets slip away while you're busy with other tasks.
Expensive tools
Bisonary $15/mo, SuperX $29/mo, TweetHunter $49/mo — just to reply on X.
Two AI Workflows for X — One Goal: Real Growth
Engage at scale, in seconds
- 1 Smart Radar – scans your feed, scores tweets 0–100
- 2 FenneX Reply – instant, context‑aware AI reply
- 3 Quick validation – tweak if needed, post in 2s
🎯 Ideal for:
Reply with precision and personality
- 1 Summarize – grasp complex threads in 3s
- 2 Deep analysis – sentiment, intent, themes
- 3 Tone & style – 25+ tones or auto‑blend
- 4 Multiple variations – pick your voice
🎯 Ideal for:
Real X Growth Results From FenneX Users
Early adopters report dramatic improvements in engagement and reach within days.
Impressions
Audience growth
*Data from one FenneX user over 5 days. Individual results vary.
Everything You Need to Grow on X — In One Free AI Extension
FenneX is a complete AI copilot that augments your intelligence, not replaces it.
Smart Radar
Real-time detection of high‑engagement opportunities in your X feed. Scores every tweet 0–100. Score >80 = worth your time.
FenneX AI Reply
Multi‑model AI replies based on deep contextual analysis. Works in both Rapid and Master modes. Groq, OpenAI, or Claude.
One‑Click Post
Post directly to X without copy‑pasting. Maximum time saving, zero friction.
25+ Reply Tones
From professional to provocative, humorous to empathetic. Your voice, amplified by AI.
100% Private
Your API keys and data stay in your browser. Zero server upload, zero tracking, zero data collection.
Real‑time Speed
AI analysis in milliseconds with Groq. No waiting, you stay in the flow on X.
Simple, Transparent Pricing. Start Free.
Free
/ forever
- 15 actions per button
- Smart Radar (5 scans/day)
- AI replies (Groq, OpenAI, Claude)
- Access to 25+ tones
- Community support
Pro
/ month / month, billed $150/year
- Everything unlimited
- Smart Radar continuous
- Full Master Feed
- Advanced contextual analysis
- 24h priority support
- Future updates included
Lifetime
one-time
- All Pro benefits
- Lifetime license
- Lifetime updates
- VIP support
- Exclusive beta access
No credit card required for the free plan.
Frequently Asked Questions About FenneX
What is FenneX and how does it work?
+FenneX is a free Chrome extension and AI copilot for X/Twitter. It uses Smart Radar to score every tweet in your feed from 0 to 100 in real time, then generates contextual replies using Groq, OpenAI GPT-4, or Claude — directly in your browser, without leaving X. No data is sent to FenneX servers.
How does FenneX compare to Bisonary or SuperX?
+FenneX is the only X/Twitter AI tool that combines real-time feed scoring (Smart Radar), multi-model AI (Groq, OpenAI, and Claude simultaneously), and 25+ contextual tones. Bisonary costs $15/month and uses a single AI model. SuperX costs $29–49/month. FenneX is free with your own Groq API key — no credit card required.
Why limit to 15 free actions per button?
+We want you to experience the real value before upgrading. 15 actions per button are more than enough to see FenneX working on your own X feed. No credit card, no commitment.
Is my data sent to your servers?
+No. FenneX runs 100% client‑side. Your API key, tweets and replies never leave your browser. We see nothing, we store nothing.
Which AI models can I use with FenneX?
+FenneX works with Groq (Llama 3.3 70B — recommended, free API key), OpenAI GPT-4, and Claude. You bring your own API key. Groq is completely free — no credit card required to get a Groq API key at console.groq.com.
Can I switch plans?
+Yes, upgrade is instant. Downgrades apply at the end of your billing period. The lifetime license is one‑time, forever.
Does FenneX comply with X's terms of service?
+Yes. You retain full human control over every reply — FenneX suggests, you decide. FenneX is an augmentation tool, not mass automation. You are 100% compliant with X's terms.
Ready to Grow Your Audience on X With AI?
Install FenneX free. No credit card. Start in 60 seconds.
No credit card required. Start free, upgrade anytime.