Latest: JayApp Dark Mode implementation guide is now live!Our AI Code Analysis tool is now in MVP testing.๐Ÿ“ˆ Success Story: E-commerce site achieved 150% traffic growth via JayApp SEO.Tip: Next.js 16 & Tailwind CSS 4 are the gold standard for 2026.Latest: JayApp Dark Mode implementation guide is now live!Our AI Code Analysis tool is now in MVP testing.๐Ÿ“ˆ Success Story: E-commerce site achieved 150% traffic growth via JayApp SEO.Tip: Next.js 16 & Tailwind CSS 4 are the gold standard for 2026.

Our Products

AI-native applications built for users who value both efficiency and privacy

๐ŸŽ™๏ธ

LocalWhisper

Your Voice, Your Device, Your Privacy

AI ProductivityAndroid

A completely private, offline-first speech transcription and AI assistant app powered entirely by on-device AI. No cloud servers, no data collection, no privacy compromise.

โœ“100% offline โ€” fully functional in airplane mode
โœ“4-engine STT โ€” SenseVoice + whisper.cpp + Paraformer + FunASR Nano
โœ“Gemma 4 on-device LLM โ€” summaries, to-dos, smart conversations
โœ“Zero data collection โ€” no account, no login, no tracking
โœ“GPU/CPU/NPU triple hardware acceleration
โœ“SenseVoice transcription in ~2 seconds
๐ŸŽ™๏ธ

Professional Speech Transcription

Real-time and batch transcription modes with multi-engine architecture covering Chinese, English, Japanese, Korean and more. Auto punctuation, emotion detection, and language identification.

๐Ÿค–

On-Device AI Assistant

Powered by Gemma 4 on-device LLM with no cloud API and zero privacy risk. Auto-generates summaries and to-do items, supports voice and text conversation.

๐Ÿ”’

Privacy-First Design

All speech recognition and AI inference run entirely on-device. No account registration, no login, no tracking. Uninstalling deletes all data automatically.

๐Ÿ“„

PDFๅฐๅทฅๅ…ท

An all-in-one PDF document toolkit covering every PDF need

ProductivityAndroid

Preview, annotate, sign, split, merge, reorder pages, convert formats, encrypt and compress PDFs. One app to replace multiple professional PDF tools.

โœ“PDF preview with highlights, annotations & signatures
โœ“Page drag-and-drop reorder โ€” cross-document supported
โœ“Split, merge, delete any pages
โœ“PDF to Word / TXT / Excel / Image conversion
โœ“Encrypt, decrypt, change password
โœ“Document compression + auto image-to-PDF
๐Ÿ“–

PDF Reader & Annotator

Smooth PDF preview with highlight, underline, sticky notes, and signature annotations.

๐Ÿ—‚๏ธ

Page Management Master

Drag-and-drop page reordering (including cross-document), page deletion, splitting, and merging with intuitive controls.

๐Ÿ”„

Multi-Format Conversion

Convert PDF to Word, PDF to TXT plain text, extract Excel tables from PDF pages, export any page as image.