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Day 4 of 5· 20 min

Mobile vs desktop — where to use AI for what

Voice prompting, dictation, in-meeting AI — the device that wins per use case.

Some AI workflows are phone-first (voice prompting while driving, photographing documents to summarize, dictating drafts). Others need a desktop browser (long research, multi-document analysis, complex prompts). Today we map which tasks belong on which device — and the underrated power of voice prompting that most people never try.

Lesson 16 min

The honest answer — no, you don't need a new computer

Lots of articles and YouTubers will tell you that to 'really use AI' you need a new MacBook, an AI-powered Windows PC, an NVIDIA graphics card, or some special hardware. For 99% of small business owners, this is wrong. The truth: ChatGPT, Claude, and Gemini all run in your web browser. They run on Anthropic's, OpenAI's, and Google's computers — not yours. Your computer just shows the result. Any 5-year-old laptop with a working internet connection runs AI exactly as well as a brand-new $3,000 MacBook. The AI itself lives in the cloud. Today we'll cover the few EDGE cases where hardware DOES matter (it's rare), and confirm what you actually need — which is almost certainly nothing.

Key points

  • 99% of small business AI use needs ZERO new hardware
  • ChatGPT/Claude/Gemini run in your browser — the AI lives in the cloud
  • Any 5-year-old laptop + internet = full AI capability
  • Don't let hardware FOMO talk you into a $3,000 purchase
Lesson 25 min

Your phone is more than enough for most

Claude, ChatGPT, and Gemini all have free phone apps. Genuinely good apps. Voice input, voice output, photo input (ask AI about a photo you took), keyboard input. For 80% of small business use cases, you can do everything from your phone. Examples: dictate a draft email while walking, take a photo of a handwritten note and ask AI to transcribe it, ask Claude to help you respond to a tricky customer text without opening your laptop. The phone interface is faster than a browser for short tasks. Download all three apps. Use them. They're free.

Key points

  • Free phone apps for all 3 (Claude, ChatGPT, Gemini)
  • Voice input + photo input on all 3
  • Phone is FASTER than browser for short tasks
  • Action: download all 3 apps today
Lesson 35 min

When hardware DOES matter (rare)

Two situations where new hardware is justified. One: you want to run AI LOCALLY on your computer instead of in the cloud. Why anyone would do this: privacy-sensitive work (legal, medical, HR), no internet access, want zero subscription cost. To run a good AI locally you need a MacBook with at least 16GB RAM (ideally M3 Pro or better) OR a Windows/Linux PC with an NVIDIA RTX 4070 or better. Cost: $2,000-$4,000. Not worth it for 99% of business users. Two: video generation. Tools like Runway, Pika, Sora all run in the cloud, but if you generate video heavily, having a fast computer to download/edit those videos matters. Mid-range modern computer is fine ($1,000-$1,500). DON'T need a special AI computer.

Key points

  • Local AI = only justified for privacy-sensitive work or no-internet scenarios
  • Local AI requires: 16GB+ M-series Mac OR NVIDIA RTX 4070+ Windows ($2K-$4K)
  • 99% of users should use cloud AI = no hardware needed
  • Video generation = mid-range computer fine ($1K-$1.5K), not special AI hardware
Lesson 44 min

What to actually do with your money

Instead of spending $3,000 on a new computer, spend $20 to subscribe to one chat AI (Claude or ChatGPT Pro). That's 150x more value per dollar. If you do that for two years, you've spent $480 — and recovered 100+ hours of work time. The 'I need to invest in hardware to use AI' story is a story sold by hardware companies. Don't fall for it. Your existing computer is fine. Your phone is fine. The investment is in TIME LEARNING to use AI well — which is what this 5-day course is for. Tomorrow we wrap with: what to do with all this once the course ends.

Key points

  • $20/mo AI subscription >> $3,000 new computer
  • 150x better ROI on the subscription
  • Hardware FOMO is marketed by hardware companies
  • Real investment = learning to PROMPT well (which is what this course covers)

Try it yourself

Apps to download today (5 minutes)
PHONE APPS (free, download all 3):
• Claude — by Anthropic — App Store / Google Play
• ChatGPT — by OpenAI — App Store / Google Play
• Gemini — by Google — App Store / Google Play

WHY EACH:
• Claude: best voice mode for long thinking
• ChatGPT: voice + photo + web browsing built in
• Gemini: integrated with Gmail / Google Drive on your phone

ALL 3 APPS:
• Free tiers usable forever
• Sign up with the same email you'll use for the paid tier later
• Enable voice input — it's the biggest mobile productivity unlock

Common beginner mistakes

  • ⚠️Buying a new computer 'for AI' — you don't need one for cloud AI
  • ⚠️Ignoring the phone apps (faster than web for short tasks)
  • ⚠️Falling for hardware FOMO from YouTubers selling sponsored content
  • ⚠️Trying to run local AI without understanding the privacy + power tradeoff
  • ⚠️Spending $3,000 on hardware instead of $20/mo on a subscription that pays for itself in a week

Save the polished version

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