PrismWriter - AI Content Generator for Desktop (Win + Mac)
Your AI Writing Studio - On Your Desktop
Tired of juggling ChatGPT tabs? Paying $20/month for AI writing tools?
PrismWriter puts professional AI content generation on your desktop - with YOUR API keys, YOUR choice of AI, and ZERO monthly fees.
One-time purchase. Own it forever.
8 Professional Writing Tools
Generate Fresh Content:
- Headlines Generator - 10 compelling headlines with style options (engaging, clickbait, professional, how-to, listicle)
- Social Post Writer - Platform-perfect posts for LinkedIn, Twitter/X, Instagram, Facebook, Threads
- Email Subject Lines - 10 subject lines optimized for opens, urgency, or curiosity
- Product Descriptions - E-commerce copy for any audience
- Meta Descriptions - SEO-optimized, under 155 characters
Transform Existing Content:
- Hooks & Openers - Attention-grabbing opening lines
- Expand Text - Bullet points to polished paragraphs
- Rewrite Tone - Professional, casual, witty, inspiring - any tone you need
Use Any AI Provider
Choose your preferred AI - or use all three:
OpenAI • GPT-4o (best quality) • GPT-4o Mini (fast & affordable)
Anthropic Claude • Claude Sonnet 4 (smart & fast) • Claude Opus 4 (most capable)
Google Gemini • Gemini 2.5 Pro • Gemini 2.5 Flash
Switch providers anytime. Compare outputs. Use what works best.
Track Every Penny
Built-in cost tracking shows: • Cost per generation • Tokens used • Cumulative spending per provider
No surprise bills. Know exactly what you're spending.
Attach Files for Context
Drop in files: • .txt and .md files • PDFs (text extracted automatically) • Images (for vision models)
Perfect for rewriting documents or generating content from existing material.
Why Desktop Instead of Subscriptions?
Subscription ToolsPrismWriter$20-50/monthOne-time $39Their serversYour computerLimited generationsUnlimitedOne AI provider3 providers, 9 modelsData on their cloudData stays local
Break-even: ~2 months. After that, you're saving money.
Privacy First
• API keys encrypted locally • No account needed • No data sent to our servers • Your content stays yours
What's Included
• PrismWriter for macOS (.dmg) • PrismWriter for Windows (.exe) • Quick Start Guide • Free updates for version 1.x
Requirements
• macOS 10.13+ or Windows 10+ • API key from OpenAI, Anthropic, or Google (at least one)
Don't have API keys? They take 2 minutes to get: • OpenAI: platform.openai.com • Anthropic: console.anthropic.com • Google: makersuite.google.com
API costs are tiny - typically $0.001-0.01 per generation.
FAQ
Do I need API keys? Yes, at least one. Most providers give you free credits to start.
Is this a subscription? No. One-time purchase. You only pay API providers for actual usage.
Mac or Windows? Both included with your purchase.
Can I use this for client work? Yes, for content you create. You cannot resell the software.
PrismWriter desktop app for Mac & Windows, 8 AI writing tools, multi-provider support (OpenAI, Claude, Gemini), built-in cost tracking, and free v1.x updates.