Solo
Freelancers, and teams of up to three
$23.20 + tax a month if billed yearly. Save 20%
Billed yearly. Save 20%
- Every module - nothing is held back
- Client portal, unlimited client users
- E-signature and proposals
- Booking, portal and form emails from your own domain
- Email and in-app support
- Add up to 2 more people, $15 + tax a month each
Included every month
AI assistant included: 200 requests a month
300 minutes of call recording and transcription
1,000 emails we send for you
3 connected mailboxes · more at $6 + tax a month each
Studio
Agencies and studios of three to twenty-five
$36 + tax per seat a month if billed yearly. Save 20%
From $135 + tax a month, at the 3-seat minimum
Billed yearly. Save 20%
From $108 + tax a month, at the 3-seat minimum
- Every module, every seat
- Custom roles for every person
- Client portal, unlimited client users
- Allowances shared by the whole team
- Booking, portal and form emails from your own domain
- Email and in-app support
Included every month
AI assistant included: 150 requests per seat a month
500 minutes of call recording and transcription per seat
10,000 emails we send for you
2 connected mailboxes per seat · more at $6 + tax a month each
Agency
Agencies of eight or more who want help moving in
$55.20 + tax per seat a month if billed yearly. Save 20%
From $552 + tax a month, at the 8-seat minimum
Billed yearly. Save 20%
From $441.60 + tax a month, at the 8-seat minimum
- Everything in Studio
- Onboarding and data migration help
- 750 recording minutes per seat, up from 500
- 50,000 emails we send for you a month, up from 10,000
Included every month
AI assistant included: 150 requests per seat a month
2 connected mailboxes per seat · more at $6 + tax a month each
Two of you? Solo plus one person is $44 + tax a month.
When your included AI requests run out, the assistant stops. Nothing is added to your bill: carry on with a pack or your own key.
Prices exclude sales tax. Any tax that applies is added at checkout, based on where your business is.
Clients pay by card or Direct Debit through your own Stripe account. The money goes straight to you. Stripe charges its usual fees; we add nothing on top.
Add-ons and usage
Everything else it can cost.
Add when you need them
Extra connected mailbox
$6 + tax a month each
Connected LinkedIn or WhatsApp account
$12 + tax a month each
On every plan. Conversations on your records, replies from Nucle.OS.
Extra person on Solo
$15 + tax a month each
Up to 2 more people.
AI request pack
$39 + tax once
500 requests. Never expires.
Over your allowance · on your next invoice, monthly plans only
- Call recording3¢ + tax a minute
- Emails we send for you1¢ + tax per 10 emails
Voice, dictation and contact enrichment run on your own OpenAI and Apollo (or Hunter) accounts. We never charge for them.
What it would replace
Count your tools first.
Tick what you pay for today. The answer is how many tools become one - then what they cost, line by line, at the vendors' own published prices.
You’re paying for five tools. Nucle.OS replaces all five.
Five tools means at least four hand-offs, where someone copies a fact from one system to the next. In Nucle.OS they are one system.
What those tools cost
$359.45
a month + tax
Nucle.OS Studio
$225
a month + tax
That is $134.45 a month less than the five tools it replaces. That's $1,613.40 a year.
Start free for 14 days →The receipt - every line at its vendor’s published price
| Tool | Billed as | Their price | In $ |
|---|---|---|---|
| HubSpot Sales Hub Starter CRM and sales pipeline | 5 seats | $100 | $100 |
| Asana Starter Project management | 5 seats | $67.45 | $67.45 |
| Harvest Teams Time tracking We couldn't confirm a monthly price, so the yearly rate is used. | 5 seats | $45 | $45 |
| FreshBooks Plus Invoicing We couldn't confirm a monthly price, so the yearly rate is used. | Per account + 4 extra users | $87 | $87 |
| Calendly Standard Scheduling links | 5 seats | $60 | $60 |
| The tools Nucle.OS replaces, a month | $359.45 | ||
Competitor prices are shown as each vendor published them on 18 September 2026. The few published in pounds are converted once at £1 = $1.3344, derived from the European Central Bank's euro reference rates for 18 September 2026. Nucle.OS's own dollar prices are list prices, not a conversion.
Prices exclude VAT and sales tax on both sides, and change often - follow any line to the vendor’s own page to check it. Checked 18 September 2026.
Never on your bill
Free for your clients.
They use the portal, join your calls, sign agreements, accept proposals, book time, fill in forms and pay invoices, with no seat and no licence.
All 31 modules, on the cheapest plan too.
The small print, large
What happens at the edges.
The questions that only get asked after somebody has already paid, answered before.
Trial and cancelling
Do I need a card to start?
No. Fourteen days, no card, every module open. We ask for one only when you decide to keep going.
What happens when the trial ends?
The workspace pauses. Billing, export, your profile and support stay open, and your workspace is kept for 12 months: subscribe and everything comes straight back. A workspace that stays paused for 12 months is deleted, after 30 days' notice by email.
Can I cancel?
Any time, from Settings → Billing, without emailing anyone. You keep everything until the end of the period you've paid for; then the workspace pauses: billing, export, your profile and support stay open, and your workspace is kept for 12 months. After that it's deleted, with 30 days' notice by email.
Seats and plans
Can I bring my whole team in?
Yes. Studio and Agency are priced per seat, with no cap on how many people you invite. A seat is one person on your team who signs in, contractors included; clients never take one. On Solo you can add up to 2 more people at $15 + tax a month each. Inviting someone takes one email; they can add a password or Google sign-in later. Custom roles decide which modules each person sees, and what they can edit.
What if I add someone mid-month?
Seats are prorated. Adding a seat adds the rest of the period, prorated, to your next invoice; removing one credits the remainder against it.
What if I switch plans?
Upgrades take effect straight away and are prorated. Downgrades take effect at the end of the period you have already paid for, so you never lose time you bought.
Monthly or yearly?
Both. Yearly is billed once a year and saves 20% - the rate is on each card. Switching from yearly to monthly takes effect when the year you have paid for runs out.
Usage and AI
What counts as usage?
AI assistant requests, call recording (with its transcription) and the emails we send for you - the things with a per-unit cost that we pay for. Each plan includes a monthly allowance of each, shown on the card. On Studio and Agency the AI requests and recording minutes are per seat, and pooled across the workspace. Voice, dictation and contact enrichment run on your own OpenAI and Apollo (or Hunter) accounts, so they never count against your plan.
What counts as one AI request?
One chat answer, one deep-research run, or one meeting summary.
Do I need my own AI key?
No. The assistant works from the day you sign up, trial included, on requests each plan includes - 150 per seat a month, or 200 on Solo. Add your own Anthropic, OpenAI or Google key whenever you like: its use doesn't count against the included requests and is billed by that provider directly; we never charge on top of it. A $50 monthly spending cap is set on your key by default, and you can change it.
What if I go over the allowance?
The AI assistant stops, and nothing is added to your bill. Add your own key (billed by your provider, never by us), or buy 500 more requests for $39 + tax, once. Packs don't expire. Call recording and email never cut off. On monthly billing, anything over your allowance goes on your next invoice, at 3¢ + tax a recording minute and 1¢ + tax per 10 emails we send for you; yearly plans aren't charged for going over. You can watch both in Settings → Billing.
Payments and your data
What does Stripe cost?
Clients pay into your own Stripe account, so Stripe's standard processing fees apply. We take nothing on top.
Can I get my data out?
You can export companies, clients, contacts, deals, projects, tasks, lists, leads and an index of your documents to CSV from Settings → Export, or download the lot as a zip. For anything else, ask, and we'll get it to you. We're not going to hold your data hostage.
The rest are on the FAQ.