Building the Primal Elements of Future
YuanzhiHub is a one-man studio focused on solving the most annoying technical compliance and efficiency problems with AI. We create tools that help indie hackers and small teams ship faster and safer.

Featured Product
AppPreflight: iOS App Store Review Predictor
Stop wasting days on rejection loops. Use AI to pre-scan your app against the App Store Review Guidelines.
The "Iron-Faced" AI Reviewer
AppPreflight acts as your internal Apple reviewer, identifying high-risk "landmines" in your screenshots and metadata before you hit submit.AI Visual Parsing
Deep scan of your app screenshots to detect missing "Delete Account" buttons (5.1.1) or placeholder content.
Guideline Grounding
Strict comparison with the latest App Review Guidelines PDF to eliminate AI hallucinations.
Real-time SSE Reports
Watch the "AI Reviewer" analyze your metadata and visuals in real-time with detailed logs.
Core Capabilities
What AppPreflight Checks
Targeting the most common reasons for rejection in 2025/2026.
Guideline 5.x (Privacy & Safety)
Mandatory check for "Delete Account" visibility if your app has a login system.
Guideline 3.x (Business & Payments)
Checks for clear IAP pricing, subscription terms, and hidden external payment links.
Guideline 2.x & 4.x (Performance & Design)
Detects "Placeholder" UI, rough webviews, and missing required metadata info.
Cross-platform Marks
Identify accidental Android icons or system-level Apple emoji misuse.
Metadata Consistency
Verifies if your description matches the functionality shown in screenshots.
Detailed Fixing Instructions
Not just a "No" - we provide clear UI fixing steps and code snippets.
Studio Impact
Pricing
Simple, Credit-Based Pricing
Free Entry
3 Credits on sign-up for your first full "Preflight" scan.
Pay-As-You-Go
$4.90 for 10 Credits. Perfect for sporadic releases.
Pro Subscription
$15/mo for 100 scans, priority AI queue, and report exports.
FAQs
Frequently Asked Questions
Everything you need to know about our tools and the studio.
Is my app data safe?
Yes. All uploaded screenshots are physically destroyed from our servers immediately after the report is generated. We never use your data for model training.
How accurate is the AI?
We use Gemini 1.5 Pro with "Doc-Grounded" reasoning. This means the AI must find a specific clause in the App Store Review Guidelines to justify its verdict, minimizing hallucinations.
What browsers are supported?
AppPreflight is optimized for modern browsers (Chrome, Edge, Safari). Our reports use SSE for a smooth real-time experience.
Ship Your Next iOS App
with Confidence
Stop the "Rejected" cycle. Start using YuanzhiHub's AI tools today.