Free esignature software: what the free plans actually cover

Free esignature software is a plan that lets you send documents for signature and collect them back without paying anything. The useful question is not whether a plan is free. It is how many documents and signers the plan allows each month, and whether that allowance ever ends. InkRobin's free plan allows five documents a month with up to two signers on each, and it does not expire. That covers more real work than most people expect, and it stops at a predictable point. This post explains where that point is, using the plan's own limits.

What 'free' usually means in this category

Free esignature offers fall into three groups, and they are easy to confuse on a pricing page. A free trial runs for a fixed period and then expects a paid plan. A capped free tier lasts indefinitely but allows only a handful of documents. A small number of plans give ongoing free use with a monthly allowance. Only the last group lets you rely on the software for steady, light work without a decision date hanging over it.

The caps differ widely. Dropbox Sign's free plan allows three signature requests a month, a figure its help centre and several 2026 pricing guides agree on. Adobe and DocuSign are harder to pin down. The third-party sources we checked disagree with each other on their free allowances and trial lengths, so any number you read in a comparison, this one included, should be confirmed on the vendor's own current page before you choose on it.

The InkRobin free plan, limit by limit

These are the exact limits on the free plan, taken from the plan definitions in the product rather than from marketing copy.

• 5 documents per month, with no end date on the plan.
• Up to 2 signers per document.
• Account-free signing, so the people you send to sign from a link without creating an account.
• A plain-English AI explainer for signers, so they can read what they are about to sign.
• A tamper-evident audit certificate on completed documents.
• Type, draw or upload your signature.
• No reusable templates. Templates are switched off on the free plan.
• The InkRobin footer stays on completed documents. Custom branding and footer removal are Pro features.

A worked example: where the free plan stops

Take a freelance designer who sends client contracts. Each contract has two signers, the designer and the client, so the two-signer limit is never the constraint. The document count is. The table below shows what one month costs on the free plan and on Pro, which is $12 a month billed monthly with no per-document charge.

Two things stand out. Up to five documents a month the plan costs nothing, and nothing else is needed. From the sixth document onwards the cost is a fixed $12 for the month, so the more you send, the lower each document's share becomes.

Compare that with a per-document model. Suppose a vendor charged an illustrative $3 for every document beyond a monthly allowance of five. Twenty documents would mean fifteen extra charges, $45, before any base fee. A flat $12 is roughly a quarter of that. The $3 figure is an illustration of the arithmetic, not a quote from any vendor, but it is the calculation worth doing before you commit to an annual plan anywhere.

Where the two-signer limit bites

The signer cap matters less for contracts than people assume, but it is the first limit that breaks for some work. A lease with a landlord and a tenant fits. An agreement that needs a witness, a guarantor or a second approver as a third signature does not. If you regularly need three or more signers on one document, the free plan will not do the job however few documents you send. Pro removes the signer cap and adds signing order, so a document can route from one party to the next.

What you keep for free, and why it matters legally

The free plan is not a weaker signing tool in the ways that matter legally. It includes the tamper-evident audit certificate, which records each signer's consent, the timestamps and a fingerprint of the document. Under the ESIGN Act in the US, UETA in the states that have adopted it, and eIDAS in the EU, the standing of an electronic signature rests on evidence of intent and consent, not on what the software cost. For how that works in the US, see the guide to the ESIGN Act. The features you give up on the free plan are convenience features: templates, signing order, reminders, bulk sending and branding.

Common mistakes when comparing free plans

• Judging by your best month. Count the documents you send across three ordinary months. A plan that covers a quiet month but not a busy one will be outgrown quickly.
• Ignoring the signer count. A free plan can cover your document volume and still fail on the one contract type that needs a third signature.
• Mistaking a trial for a free plan. A 14-day trial is a sales period. A plan that is free indefinitely is a different thing, and the two should not be compared as if they were the same.
• Skipping the audit trail check. Export a completed document on the free plan and look at the certificate before you rely on it. The record is the thing you are paying for, even when you pay nothing.
• Comparing the free allowance with a paid base price alone. The useful comparison is the cost of the month you actually have, including any charges above the allowance.

How to choose without getting stuck

For a freelancer or a small team sending a handful of documents a month, the free plan covers the whole job, and the step up is a single flat fee rather than a set of per-document charges. For anyone sending more, the arithmetic takes a minute, and the limits on the free plan make the decision easy to check. Start with the document count, then the signer count, then the expiry, and only then the price.