Choose your plan
Start free. Most homes are happy on Plus — it's less than a dollar a week and it's the daily plan you'll actually use. Upgrade when you want AI insights or whole-home intelligence. Cancel anytime.
Watson's Laboratory access — for life.
Lifetime access to every WhatSun feature, including all future AI tools and Watson upgrades. Direct line to the developer, early-access feature flags, and a vote on the roadmap. Locked-in pricing — never a price increase.
- Everything in Watson Home
- All future AI features included
- Tinker Bench: early-access toggles
- Lab Notebook: message the dev directly
- Vote on the public roadmap
- Founder #N badge & lifetime price-lock
First-year founding activation: $300 one-time + $199 membership billed today. Renews at $199/year, never increases. First 500 members only.
See what your solar did today.
- 7-day history
- Today's solar plan
- 7-day solar forecast strip
- Sunrise / sunset countdown
- Manual daily log
- Weekly Watson-voiced household text (taste)
The daily plan, the spouse text, and your trends. The one most people need.
- 1-year history
- Live power-flow view
- Daily Watson briefing + copy-paste household text (Witty & Concise voices)
- EV charging planner
- AI bill analysis + next-bill prediction
- Battery Story — daily peak SoC & hold time
- 7-day free trial
Card required. No charge for 7 days. Cancel anytime in Billing before day 7.
For multi-array, multi-EV, optimization-obsessed homes.
- Everything in Plus
- Unlimited history
- Multi-system + multi-EV support
- Solar accuracy analyzer + panel health drift
- Expansion advisor
- Solar Priority modes (Battery-first, Cars-first, Balanced, Storm-prep)
- Coast-learning — Watson learns your overnight draw
- Adds Warm voice for the whole household
- 7-day free trial
Card required. No charge for 7 days. Cancel anytime in Billing before day 7.
For households that want their home to run itself on solar.
- Everything in Household
- AI energy detective
- Watson Orchestrator — auto-trim car charging to live solar
- Overnight battery→car dump on big-sun days
- Weekly + monthly intelligence reports
- Full Watson voice set: Witty, Concise, Warm, Coach, Technical
- Smart thermostat automation (coming soon)
Card required. No charge for 7 days. Cancel anytime in Billing before day 7.
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