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Cybersecurity · head to head

Keygen vs Tuta

Keygen logo

Keygen

Cybersecurity

Open, source-available software licensing API

From
Free
Rated
-
Full reviewWebsite
Tuta logo

Tuta

Cybersecurity

Secure, green and ad-free. Email to feel good about.

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Keygen specific Active Licensed User (ALU) pricing not listed; requires interactive pricing calculator; Tuta individual plan pricing only shown in EUR; no USD conversion provided on site
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Keygen and Tuta actually diverge.

Attributes where Keygen and Tuta differ
AttributeKeygenTuta
Pricing modelusage-basedfreemium

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

What people use each for

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

Keygen

  • Software licensing and distributionnot Tuta
  • Product release managementnot Tuta
  • API-based license verificationnot Tuta

Tuta

  • Private encrypted email communicationnot Keygen
  • Users valuing end-to-end encryption and zero-knowledge architecturenot Keygen
  • Individuals seeking open-source email clientsnot Keygen
  • Organizations requiring quantum-resistant encryptionnot Keygen

Where each one falls short

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

Keygen

  • Specific Active Licensed User (ALU) pricing not listed; requires interactive pricing calculator
  • Whitelabel API add-on costs $995/year per domain

Tuta

  • Individual plan pricing only shown in EUR; no USD conversion provided on site
  • Family plan pricing separate (EUR 3 or EUR 8 per additional user) not included in main pricing
  • Shared mailboxes require additional EUR 3-8 monthly charges

Pricing, plan by plan

Keygen

Free
  • DevFree
    • Up to 100 Active Licensed Users
    • 10 product releases
    • Core licensing API only
  • Std$null/month
    • Scaling with licensing volume
    • Distribution API (OCI/Docker, npm, Rubygems, PyPI, Tauri)
    • Flat monthly/yearly fees
  • Enterprise$null/month
    • Audit logs
    • SAML/SSO
    • IP filtering

Tuta

Free
  • Free PlanFree
    • 1 GB storage
    • 1 calendar
    • 3 labels
  • Revolutionary Plan$3/month
    • 20 GB storage
    • 15 email aliases
    • 3 custom domains
  • Legend Plan$8/month
    • 500 GB storage
    • 30 email aliases
    • 10 custom domains

Which should you pick?

Choose Keygen if

  • You want to start without paying.
Keygen review

Choose Tuta if

  • You want to start without paying.
Tuta review

Questions people ask

Is Keygen or Tuta better?
Neither clearly leads. Keygen starts at Free and Tuta at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Keygen or Tuta?
Keygen starts at Free and Tuta at Free.
Does Keygen or Tuta run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Keygen for free?
Both have a free tier, so you can try either at no cost before committing.
What is Keygen best used for?
Keygen is most often used for software licensing and distribution, product release management, api-based license verification. Of those, software licensing and distribution and product release management are not what Tuta is typically brought in for.

Answered from the vendors’ own pages

Keygen: Does Keygen have a free tier?

Yes, the Dev tier is free and supports up to 100 Active Licensed Users with 10 product releases and core licensing API access.

Source
Tuta: How much does Tuta email cost?

Tuta offers a free plan with 1 GB storage. Paid plans are EUR 3/month (Revolutionary) with 20 GB storage and 15 email aliases, and EUR 8/month (Legend) with 500 GB storage and 30 email aliases. Family plan add-ons cost EUR 3-8 per additional mailbox member monthly.

Source
Keygen: How is Keygen pricing calculated?

Keygen uses scalable, flat monthly or yearly fees based on your licensing volume (Active Licensed Users). No revenue share or transaction fees are charged.

Source
Tuta: Is there a free email plan with Tuta?

Yes, Tuta's free plan includes 1 GB of storage, one calendar, three labels, and full end-to-end encryption security features with no custom domains or email aliases.

Source
Keygen: Does Keygen charge for additional features like SSO?

SAML/SSO is included in Enterprise tiers. Whitelabel API support costs $995/year per domain. Premium Support SLA is $995/month for Enterprise.

Source
Tuta: What are the limits on Tuta's free email plan?

The free plan provides 1 GB storage, access to one calendar, three labels maximum, and no support for custom domains or additional email aliases.

Source
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