ATOM Signatures has one price: CA$1 per user per month, plus tax, for every feature. No "Pro" tier, no add-on to unlock, no minimum number of licences. This page covers monthly and annual billing, the nonprofit and public sector rate, the reseller program (reseller-set pricing, recommended at $1, floor of $0.75), and what counts as a user.
Price list
| Plan | Price | For |
|---|---|---|
| Standard, monthly billing | CA$1 / user / month | Any Microsoft 365 organization |
| Standard, annual billing | CA$12 / user / year | Same price, paid for the year |
| Nonprofits and public sector | CA$0.75 / user / month | Nonprofits, municipalities, healthcare institutions, public bodies — on request |
| Reseller | Reseller-set pricing, recommended: CA$1 / seat / month or CA$12 / seat / year; floor: CA$0.75 / seat / month or CA$9 / seat / year (recommended for nonprofits and the public sector) | Microsoft 365 MSPs and resellers; the client is billed by ATOM at the reseller's price; their own signatures are free |
Prices in Canadian dollars. Applicable taxes (GST/QST) are added. Listed prices may change with at least 30 days' notice, effective from the next cycle.
What's included
The price is the same for every feature:
- Centralized deployment of the Outlook add-in, once for the whole organization
- Unlimited signatures and Microsoft 365 group targeting
- Real-time directory data (name, title, phone)
- Visual editor and signatures on Outlook mobile
- Law 25 compliance and audit logs
- Support included
Each feature is described on the Office 365 email signature management page.
What counts as a user?
Billing is per seat. A seat is a distinct sender email address to which ATOM applies a signature during the cycle. A shared mailbox used through the service does not consume a seat.
The counter resets automatically every Monday at 4 a.m. (Eastern time): only addresses that compose an email again are then counted. An administrator can also reset it from the console, at most once every 24 hours, and increase the number of seats at any time.
Monthly or annual
The per-user price is identical: $1 per month or $12 per year. What changes is the billing period; a change in the number of seats is billed the same way in both cases.
- Adding seats (monthly or annual): they are billed immediately, prorated for the time remaining until renewal, for only those seats not already paid for in the current period.
- Reducing seats (monthly or annual): there is no refund or credit: seats already paid for remain usable until renewal, and the reduced number applies from then on.
You can switch from monthly to annual at any time from the console; the already-paid portion of the current month is credited. Billing is handled by Stripe, in advance.
Nonprofits and public sector
Nonprofits, municipalities, healthcare institutions and other public sector bodies pay CA$0.75 per user per month, plus tax, with the same features. This rate is granted on request: write to us at info@atomsolutions.ca.
See also: email signatures for municipalities and the public sector.
Resellers and MSPs
A Microsoft 365 MSP or reseller tracks its clients from a single account and manages their signatures with each one's authorization. Its own signatures are free, and it never pays ATOM: its clients are the ones billed.
Reseller-set pricing, monthly and/or annual.
- The reseller chooses its clients' price itself, with every invitation or affiliate link: monthly and/or annual, plus tax. It offers at least one of the two. Recommended price: CA$1 per seat per month or CA$12 per year, ATOM's public price. Floor price: CA$0.75 per month or CA$9 per year, recommended for nonprofits and the public sector.
- The client is billed directly by ATOM at that price, which is displayed before it subscribes; if the reseller offers both intervals, the client chooses at subscription. Billed seats are the ones the client subscribes to, as with a direct subscription.
- ATOM keeps its per-seat share and pays the margin to the reseller through Stripe Connect, net of Stripe's payment fees; the reseller's console shows, client by client, the price, ATOM's share, the margin and the payout history, Stripe fees included.
- The reseller must have completed its Stripe sign-up before inviting a first client.
- The 14-day free trial applies to its clients like any client, once per organization.
An organization already subscribed directly to ATOM cannot be attached to a reseller, nor become a reseller itself.
Program details: MSPs and resellers. To join, write to us at info@atomsolutions.ca: ATOM sends you a single-use invitation link, valid for 7 days.
Free trial
The trial lasts 14 days, with every feature. No card is requested at sign-up. Without a payment method at the end of the trial, signatures are suspended. It is offered once per organization.
Pricing FAQ
How much does ATOM Signatures cost?
CA$1 per user per month, or CA$12 per user per year on annual billing, plus tax. The price covers every feature: no tiers, no paid add-ons, no minimum number of licences.
What counts as a user?
A seat is a distinct sender email address to which ATOM applies a signature during the cycle. A shared mailbox used through the service does not consume a seat. The counter resets automatically every Monday at 4 a.m. (Eastern time): only addresses that compose an email again are then counted.
Is there a rate for nonprofits and the public sector?
Yes: CA$0.75 per user per month, plus tax, for nonprofits, municipalities, healthcare institutions and other public bodies. This rate is granted on request: write to us at info@atomsolutions.ca.
Does the free trial require a credit card?
No. No card is requested for the 14-day trial. Without a payment method at the end of the trial, signatures are suspended, then the subscription is cancelled after 30 days; adding a card reactivates them. The free trial is offered once per organization.
Monthly or annual: what's the difference?
The per-user price is the same; only the billing period changes. In both cases, added seats are billed right away, prorated for the time remaining until renewal, for only those seats not already paid for, and a reduction only applies at renewal. You can switch from monthly to annual at any time from the console.
How does reseller pricing work?
The reseller sets its clients' per-seat price freely, monthly and/or annually, plus tax. Recommended price: CA$1 per month or CA$12 per year, ATOM's public price; floor price: CA$0.75 per month or CA$9 per year, recommended for nonprofits and the public sector. The client is billed directly by ATOM at that price, and ATOM pays the margin to the reseller through Stripe Connect, net of Stripe's payment fees. The reseller's own signatures stay free: it never pays ATOM.
Are taxes included?
No. Prices are in Canadian dollars and applicable taxes (GST/QST) are added to the listed rate.
Try ATOM Signatures for 14 days. One price, every feature, hosted in Canada.
To compare: ATOM vs other solutions.