Signater

Overview

Signater is a browser-based service for sending, signing and tracking digital contracts. It is best suited to businesses handling repeat agreements or building signing into their own systems. Its strongest case is the range of identity checks and envelope workflows; the free tier’s low monthly cap and the paid-plan gate on integrations narrow its fit.

Key features

Envelopes bundle documents and signers into a sequential or parallel flow, ending with a completion certificate. That accommodates agreements with multiple parties, while per-envelope document and signer caps may constrain more complex transactions on lower plans.

Identity checks range from password and email or SMS one-time codes to selfie liveness, identity documents, facial biometrics and geolocation. This lets businesses match verification to their process. Signers follow a browser link on a phone or computer without installing an app or creating a Signater account, which avoids adding account setup for external parties.

Templates keep recurring text ready, use typed fields for changing content and create a new version after each edit. The REST API can create, send and track envelopes, upload documents, use templates and retrieve signed files and certificates. Webhooks deliver envelope events by POST request with automatic retries. These integration tools can support automated workflows, but API and webhook access starts at Business, so Starter is not the choice for teams that need them.

Signater uses HTTPS/TLS with HSTS, AES-256 encryption at rest, AES-256-GCM for secrets and PBKDF2 password derivation. Signed PDFs use embedded PAdES signatures, SHA hashes and RFC 3161 timestamps, with optional long-term validation. Signater states that its electronic signatures are legally binding under the U.S. ESIGN Act, UETA and EU eIDAS. The platform, signing flow and messages support English, Portuguese, Spanish, French, German and Italian.

Pricing

The free plan costs $0 per month, requires no credit card and is free forever, but allows just three envelopes monthly for one user. Each envelope is limited to three signers and two documents, with a 5 MB cap per document. It is a practical way for an individual to handle occasional, small agreements, not for a team with steady volume.

Starter costs $39 per month, or $23 per month billed annually. It raises the allowance to 30 envelopes monthly, allows unlimited users, and supports 20 signers and 20 documents per envelope, with 25 MB per document. This suits a team that needs shared access and more room per agreement but can work without API or webhook integrations.

Business costs $79 per month, or $47 per month billed annually. It keeps the 30-envelope monthly cap but raises limits to 50 signers and 50 documents per envelope and 50 MB per document. Unlimited users and API and webhook access make it the relevant step up for teams automating workflows; the unchanged envelope quota means it does not add monthly transaction volume over Starter.

Enterprise costs $499 per month, or $299 per month billed annually. It includes 200 envelopes monthly, unlimited users, signers and documents per envelope, and a 100 MB per-document cap. Priority chat support is included. This tier is aimed at higher-volume operations with large or complex envelopes; the price is a substantial jump from Business. Signater offers no free trial.

Platforms

Signater is available on Android, iOS and the web, with an API for integration. Browser signing links work on phones and computers without requiring the signer to install an app.

Who it's for

Signater is a good fit for businesses that want multiple identity-check options, recurring templates and configurable multi-party signing flows. It is particularly compelling when Business-level API and webhook access can connect signing to existing systems. Individuals or small teams sending only a few simple agreements can start on Free, but its three-envelope monthly cap and single-user limit are restrictive. Teams needing integration below Business, or more than 30 monthly envelopes without moving to Enterprise, should look elsewhere.

Pros and cons

• Pros: Multiple identity-check methods let businesses choose among codes, biometric checks and geolocation.
• Pros: Browser links do not require signers to install an app or create an account.
• Pros: Business and Enterprise include API and webhook access for creating, tracking and retrieving envelope materials.
• Cons: Free is capped at three envelopes monthly and one user, limiting its usefulness for regular team work.
• Cons: API and webhook access is unavailable on Starter, putting integrations behind the $79 monthly Business plan.
• Cons: Starter and Business both cap usage at 30 envelopes per month, so Business adds integration and per-envelope capacity rather than monthly volume.

Alternatives

For a broader comparison, see Digital Signature API Software.

PandaDoc is worth considering if a free plan with a yearly 60-document allowance or a free trial better suits your needs. Dropbox Sign API may suit developers who want a test mode or a free package capped at three signature requests monthly before choosing a paid plan. Skribble is an option if its free Starter tier with pay-per-signature SES, AES and QES pricing fits your signing needs. Xodo Sign may appeal if an API sandbox with up to two production API documents is a useful starting point. BoldSign offers a free Essential plan with 25 envelopes monthly, two templates and one user, a higher free envelope allowance than Signater. PearSign is another freemium option with a free tier capped at three envelopes monthly. Documenso may suit teams that value an open-source option; it describes itself as sharing its code, designs and metrics. DocuSeal is another freemium option.

Verdict

Choose Signater if your business values flexible identity checks, multi-party envelope flows and a path to API-driven signing at Business or above. Its browser-based signing also avoids asking recipients to install an app or open an account. Look elsewhere if you need integrations on a lower-priced tier or more than 30 envelopes a month without stepping up to Enterprise.