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Productivity · head to head

BoldSign vs Canary Mail

BoldSign logo

BoldSign

Productivity

eSignature API and app for developers and teams

From
Free
Rated
-
Full reviewWebsite
Canary Mail logo

Canary Mail

Productivity

Security-focused AI email client with end-to-end encryption and a lifetime purchase option

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: BoldSign premium plan: additional envelopes cost $0.50 each after 250/month limit; Canary Mail pGP encryption only protects a message if the recipient also supports and uses PGP, so most everyday mail to non-technical contacts stays unencrypted regardless.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which BoldSign and Canary Mail actually diverge.

Attributes where BoldSign and Canary Mail differ
AttributeBoldSignCanary Mail
Pricing modelsubscriptionPer user per year, or one-time purchase
PlatformsWebmacOS, Windows, iOS, Android

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Productivity).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in BoldSign

Nothing recorded that Canary Mail does not also cover.

Only in Canary Mail

  • AI Copilot
  • AI Summaries
  • Smart Search
  • PGP encryption
  • Read receipts
  • Lifetime licence

What people use each for

The jobs each tool is most often brought in to do.

BoldSign

  • eSignature automationnot Canary Mail
  • Contract signingnot Canary Mail

Canary Mail

  • A privacy-conscious user who wants PGP encryption built into a mainstream-feeling clientnot BoldSign
  • Someone who wants to avoid an open-ended subscription and prefers a lifetime purchasenot BoldSign
  • A user who wants AI summaries without sending mail content through an unfamiliar third party indefinitelynot BoldSign
  • Someone consolidating several IMAP accounts into one client with unified searchnot BoldSign

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

BoldSign

  • Premium plan: additional envelopes cost $0.50 each after 250/month limit
  • Monthly billing costs 60-85% more than yearly billing (no 40% discount)
  • Enterprise API requires minimum $30/month

Canary Mail

  • PGP encryption only protects a message if the recipient also supports and uses PGP, so most everyday mail to non-technical contacts stays unencrypted regardless.
  • Team and shared-inbox features are minimal compared with Spark or dedicated tools, so it does not suit a support team out of the box.
  • The lifetime purchase price and terms have shifted over past versions, and buyers should confirm current lifetime pricing directly before assuming it still applies.
  • AI features still require sending thread content to a processing service to generate drafts and summaries, so the privacy story is stronger for encryption than for the AI layer itself.
  • Windows and Android apps have historically received updates later than the macOS and iOS versions.

Pricing, plan by plan

BoldSign

Free
  • EssentialFree
    • 25 envelopes/month
    • 2 templates
    • No additional users
  • Growth$5/month yearly
    • 50 envelopes/month
    • 10 templates
  • Business$15/month yearly
    • Unlimited envelopes
    • Unlimited templates
    • SSO
  • Premium$99/month yearly
    • 250 envelopes/month
    • Unlimited users

Canary Mail

Free
  • FreeFree
    • Unified inbox
    • Basic search
    • PGP support
  • Growth$36/year
    • AI Copilot and summaries
    • Send later
    • Inbox cleaner
  • Pro+$100/year
    • Advanced security features
    • Priority support
    • All Growth features

Which should you pick?

Choose BoldSign if

  • You want to start without paying.
BoldSign review

Choose Canary Mail if

  • You need ai copilot.
  • You want to start without paying.
  • You work on macOS, Windows, iOS, Android.
  • You also want ai summaries.
Canary Mail review

Questions people ask

Is BoldSign or Canary Mail better?
Neither clearly leads. BoldSign starts at Free and Canary Mail at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, BoldSign or Canary Mail?
BoldSign starts at Free and Canary Mail at Free.
Does BoldSign or Canary Mail run on more platforms?
BoldSign runs on Web. Canary Mail runs on macOS, Windows, iOS, Android.
Can I use BoldSign for free?
Both have a free tier, so you can try either at no cost before committing.
What is BoldSign best used for?
BoldSign is most often used for esignature automation, contract signing. Of those, esignature automation and contract signing are not what Canary Mail is typically brought in for.
What can BoldSign do that Canary Mail cannot?
Canary Mail covers AI Copilot, AI Summaries, Smart Search, PGP encryption.

Answered from the vendors’ own pages

BoldSign: Does BoldSign offer a free plan?

BoldSign's Essential plan is free and includes 25 envelopes per month, 2 templates, and basic features like audit trails and authentication.

Source
Canary Mail: Does Canary Mail host my email?

No, it is a client over Gmail, Outlook, iCloud or IMAP accounts you already have.

BoldSign: How much does the BoldSign Growth plan cost?

The Growth plan costs $5 per month per user with annual billing or $15 per month per user with monthly billing, including 50 envelopes/month per user.

Source
Canary Mail: Is the lifetime licence still available?

Canary has offered a one-time lifetime purchase alongside its subscriptions; check current pricing on their site as terms have changed over time.

BoldSign: What are the overage fees for BoldSign's Premium plan?

The Premium plan includes 250 envelopes per month for $99-$138/month, with additional envelopes charged at $0.75 per envelope.

Source
Canary Mail: Does PGP encryption work automatically?

Only between users who both have PGP set up; it does not encrypt mail to recipients without it.

BoldSign: How much does BoldSign charge for API access?

BoldSign's Enterprise API costs $0.75 per envelope with a minimum charge of $30/month and includes 40 envelopes and 2 application users.

Source
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