Turn Your Lore
into Numbers.
Subscribers are growing, but concurrent viewers aren't.
The problem might be a "design flaw" in your streaming plan.
V-Mentor combines your VTuber character lore with daily-updated YouTube and Twitch algorithm and trend data, giving you brutally honest AI-powered reviews of your streaming plans.
Auto-updated daily:Algorithm changes and viral trends from YouTube and Twitch are collected every morning to automatically refine the AI's instructions — so every review reflects what works right now.
Up to 3 free reviews per day
Pain Points
Do any of these sound familiar?
Many VTubers struggling with concurrent viewers hit these same walls.
Content is getting stale
You've been streaming similar content over and over, and you're bored of it yourself. No matter what you try, concurrent viewers don't budge.
Stuck under the same concurrent viewer ceiling for 6+ months
Subscribers are steadily growing, but live streams don't gain traction. You can't figure out why the numbers won't move.
Copying viral ideas, but they just don't land
You reference what popular streamers do, but when you try it yourself, it falls flat. Nobody tells you what the difference is.
It's not a lack of effort. It's not a lack of talent.
Your plan might be missing "Hook", "Lore", and "Retain" design.
Solution
3 AI Producers. Brutally Honest.
Pick a persona that fits your mood or goal. Each one finds the holes in your plan from a different angle.
Sets aside emotion and analytically argues weak points and improvements using platform algorithms and viewer data.
#Results-driven #Analytical
Walks alongside you, respecting your unique personality and ideas, with concrete improvements to help you grow. Resilience matters too.
#Supportive #Consistency
Deep knowledge of fan culture, internet memes, and viewer psychology. Passionately digs into your lore and finds viral angles.
#Virality #FanPsychology
How it Works
Just 4 simple steps
Register your character profile
Save your liver name, concept, lore, and target audience in your profile. Do it once and you're set for every future review.
Choose a persona and enter your plan
Pick from Spartan, Mentor, or Otaku. Even in the middle of a busy streaming schedule, just speak your plan into the mic — the AI turns it into a structured draft, no typing required.
AI analyzes your plan on 3 pillars
Your plan is dissected across Hook (thumbnail/title appeal), Lore (character setting utilization), and Retain (drop-off prevention design).
Receive concrete improvement suggestions
Title options, structure improvements, and lore-driven hooks are delivered as ready-to-use markdown output.
Product Preview
Product Preview
Pricing
Choose the plan that fits your workflow
Try it free first. Upgrade only if you love it.
Free Plan
- ✓Up to 3 reviews per day
- ✓No registration required
- ✓All 3 AI personas included
BYOK Plan
- ✓Unlimited reviews
- ✓Use your own Anthropic API key
- ✓Control your own API costs
- ✓Review history
Pro Plan
- ✓Up to 300 reviews per month
- ✓No API key needed — works instantly
- ✓Review history
- ✓Priority support
💡 What is the BYOK Plan?
Register an API key from the Anthropic console and use it directly. Ideal for developers or users who want to control their AI costs. Get unlimited reviews while keeping your monthly fee low.
Developer
I build tools driven by one goal: using technology to support other people's work.
My previous project, "Inbox Flow" (a Gmail auto-organizer), was built to help busy professionals reclaim time lost to email overload. I refined it continuously based on real user feedback after launch.
I built V-Mentor for VTubers who battle daily with content ideas, planning, and slow growth — believing that better tools for plan design would both boost numbers and free up time.
Previous work
Inbox Flow
Gmail auto-organizer. Reduces inbox management to zero effort.
Development philosophy
I pursue uncompromising product design — from security to billing logic. My top priority is code you can rely on long-term. Bug reports and feature requests are valuable data that make this tool better, and I take every one seriously.
Your streaming plan —
let's build it right.
Breaking through the viewer ceiling isn't about talent. It's about design. Let V-Mentor help you engineer your next plan with logic.
Try it free →Up to 3 free reviews per day