Oneflow vs Calisto Sign
Oneflow is a contract platform sold per user on annual billing, starting at five users. Calisto Sign is priced per envelope, when it is sent.
Offers for leaving Oneflow
Every offer below is live right now. Some are specific to this switch, some apply to everyone leaving another platform.
Credit
Your remaining contract becomes Calisto credit
Upload the contract you are still bound by. We read what is left on the term and credit that amount to your Calisto wallet once you have cancelled — every signature, every product, paid from it.
Import from Oneflow.
Nothing is written until you have seen what will come across.
Oneflow sells a seat. Calisto Sign sells an envelope.
A seat charges for the people who might send. An envelope charges for the ones that go out.
Feature by feature
Calisto Sign beside Oneflow, feature by feature.
| Feature | Calisto Sign | Oneflow |
|---|---|---|
| Pricing model | ||
| Priced per envelope, never per userOneflow sells seats per user per month. | ✓ | ✗ |
| No annual term or monthly planOneflow is billed annually only. | ✓ | ✗ |
| Anyone in the account can send without a licenceOneflow's Business plan starts with five users. | ✓ | ✗ |
| A month with nothing signed costs nothing | ✓ | ✗ |
| Sending | ||
| Reusable templates | ✓ | ✓ |
| Bulk send to many recipientsBatch sending is a paid extra on Oneflow. | ✓ | ✓ |
| Parallel or sequential signing order | ✓ | ✓ |
| Signing | ||
| Sign in person on a tablet at the counter | ✓ | ✓ |
| Hand off to the signer's own phone by QR code | ✓ | ✗ |
| Identity | ||
| Government ID and liveness check before the document opensOneflow signs with national eIDs, marked as a paid extra; Calisto charges identity per check, as its own product. | ✓ | ✓ |
| Compliance check that adds AML screening | ✓ | ✗ |
| Records | ||
| Audit trail of views, entries, signatures, downloads and reminders | ✓ | ✓ |
| Signed waiver writes coverage against the person, with an expiry warning | ✓ | ✗ |
| Where it stops | ||
| Public API and developer plans | ✗ | ✓ |
| Native connectors to third-party CRMsOneflow's premium CRM integrations are paid extras. Calisto Sign works with Deals, and outside CRMs import through Contacts. | ✗ | ✓ |
| Contacts, documents, bookings and deals in the same system as the signature | ✓ | ✗ |
The seat is the start of the bill, not the end of it.
What Oneflow prices separately, beside what a Calisto envelope already carries.
Five seats to start
Oneflow's Business plan starts at five users and is billed annually only. A Calisto envelope is charged once, when it is sent, whoever sent it.
eID and SMS signing cost extra
eID and SMS signatures are marked as paid extras. In Calisto, identity is its own per-check product, switched on per document.
A contract platform around the signature
Oneflow sells contract management with signing inside it. Calisto Sign is the signature on its own, next to Docs and Proposals, each priced by what it does.
Calisto Sign is priced per envelope. Never per seat.
What Oneflow publishes, beside what Calisto Sign charges. No figure is converted between currencies; a rate is shown only where it is published.
List prices as published on 2026-09-13; a figure is shown only in the currency the vendor publishes it in. Source
Leaving Oneflow
Completed documents generally stay with Oneflow, because their certificates are theirs. Download them before you close the account; anything you send from Calisto Sign carries its own certificate and audit trail.
Templates rebuild with drag-and-drop field placement on the PDF you already have. Field positions are in PDF points, so a template you place once is exact on every send.
Upload the contract from the offer above. We read the term, the fees and the notice period, and hold what leaving costs you as credit in your Calisto wallet. Cancel, show us the proof, and it is released. A person reviews some claims, such as a contract in another currency.
The pricing section on this page reads the live catalogue and is the authority on the figure. One envelope holds every document and every signer the agreement needs, and is charged once, when it is sent; drafting and placing fields cost nothing.
The table above says so plainly. National eID signing, a developer API and native CRM connectors are theirs; the record the signature belongs to is ours.
Bring your Oneflow data with you.
Upload your current contract and we will read the cancellation terms and credit your wallet for what leaving costs you. Bring your records across with a CSV import. Setup costs nothing.