List of Best

Work Smarter

Electronic signature and document signing

Dropbox Sign (formerly HelloSign) sends, receives, and manages legally binding electronic signatures. Simple workflow for contract execution and record-keeping.

From $15/mo Verified Jun 2026

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Work Smarter homepage screenshot

Pricing

Standard Plan
$15/monthly
  • Enjoy a free trial and send unlimited signatures.
API Plan
$100/50 API requests / month
  • Embed eSignatures into your application in record time.

Pricing from the official site, verified Jun 2026. Always confirm current prices on the vendor site.

Pros & cons

Our analysis

Pros

  • Legally binding electronic signatures
  • Integrates with Salesforce, Gmail, Slack
  • API available for automation
  • Simple contract execution workflow

Cons

  • No free tier
  • Starts at $15/month
  • AI features not prominently described

What users say

Dropbox Sign is commonly used by businesses to manage contract execution and record-keeping through legally binding electronic signatures. A frequently noted strength is its broad integration set including Salesforce, Gmail, and Slack. A common limitation is the absence of a free tier, with paid plans starting at $15 per month.

Editorial summary based on public information.

Best for

Teams needing reliable e-signature workflows with CRM integration

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Feature
Work Smarter
Adaapt.AI
PricingPaidPaid
Price from$15/mo
Free tierNoNo
APIYesYes
Open sourceNoNo
PlatformsDesktopAPI
ModelsHellosignAdaapt
Context window32k
Launched20242023
IntegrationsSalesforce, Gmail, Slack +4 more

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Specs

PricingPaid
Price from$15/mo
Free tierNo
APIYes
Open sourceNo
PlatformsDesktop
ModelsHellosign
IntegrationsSalesforce, Gmail, Slack, Greenhouse, Sharepoint, Google Docs +1 more
Context window32k
Launched2024