Softwr

Productivity · head to head

HEY vs Sejda

HEY logo

HEY

Productivity

Flat annual subscription email service from 37signals, with its own hey.com domain and a distinctive Screener

From
$99/year
Rated
-
Full reviewWebsite
Sejda logo

Sejda

Productivity

Browser based access to all PDF tools

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Sejda has a free tier, so it costs nothing to try first.
  • Each has a real cost: HEY there is no free tier and no monthly billing option, so trying it beyond the trial means committing to a full year upfront.; Sejda free tier is restricted by page and hourly limits and limited file uploads
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which HEY and Sejda actually diverge.

Attributes where HEY and Sejda differ
AttributeHEYSejda
Starting price$99/yearFree
Pricing modelPer user per monthfreemium
Free tierNoYes
PlatformsMac, Windows, Web, iOS, AndroidWeb

Identical on both: 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 HEY

  • The Screener
  • Imbox, Feed and Paper Trail
  • Reply Later stack
  • Focus and Reply mode
  • Screen sharing style clips
  • No tracking pixels

Only in Sejda

Nothing recorded that HEY does not also cover.

What people use each for

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

HEY

  • Someone who wants to replace Gmail or iCloud Mail entirely with an email service built around approving senders before they reach the inboxnot Sejda
  • A user overwhelmed by newsletters and receipts who wants them automatically separated from person to person conversationnot Sejda
  • A family that wants shared but individually addressed email under one annual plannot Sejda
  • A small company wanting HEY for Work on its own domain with the Screener model for the whole teamnot Sejda

Sejda

  • Combining multiple PDFs into single files and reordering pagesnot HEY
  • Converting PDFs to Excel, Word, PowerPoint for data extractionnot HEY
  • Filling and signing PDF forms with digital signatures and validationnot HEY
  • Extracting text from scanned documents through OCR processingnot HEY
  • Batch automating repetitive PDF tasks across hundreds of documentsnot HEY

Where each one falls short

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

HEY

  • There is no free tier and no monthly billing option, so trying it beyond the trial means committing to a full year upfront.
  • Adopting HEY means changing your actual email address, not just installing a new client, which is a bigger migration than switching apps on an existing address.
  • The Screener and categorisation model is a real departure from a standard inbox, and some users take time to adjust or find it gets in the way for high volume mail.
  • Short vanity addresses carry steep additional annual fees, up to 999 US dollars a year for a two character address.
  • It does not connect to or manage existing Gmail, Outlook or iCloud accounts, so it cannot be used as a general client the way Mimestream or Apple Mail can.

Sejda

  • Free tier is restricted by page and hourly limits and limited file uploads
  • OCR is capped at 100 pages even on paid plans
  • File uploads are capped at 500MB per file on paid plans
  • The 30 percent annual discount requires paying for a year upfront rather than monthly

Pricing, plan by plan

HEY

$99/year
  • HEY for You$99/year
    • One hey.com email address
    • Screener, Imbox, Feed and Paper Trail
    • Billed annually only, no monthly option
  • HEY for Families$179/year
    • Covers up to five family members
    • Same features as HEY for You per member
  • HEY for Work$12/month
    • Per user, for organisations on a company domain
    • Admin controls for a team

Sejda

Free
  • FreeFree
    • Permanently available with no signup required
    • Page/hourly limits applied
    • Restricted file uploads
  • Web Week Pass$5/week
    • Browser-based tools only
    • Single user, 7-day access
  • Web Monthly$7.5/month
    • Browser access to all PDF tools
    • Recurring monthly billing
  • Desktop+Web Annual$63/year
    • Both desktop application and web access
    • Unlimited documents and no page limits
    • Process multiple files simultaneously

Which should you pick?

Choose HEY if

  • You need the screener.
  • You work on Mac, Windows, Web, iOS, Android.
  • You also want imbox, feed and paper trail.
HEY review

Choose Sejda if

  • You want to start without paying.
Sejda review

Questions people ask

Is HEY or Sejda better?
Neither clearly leads. HEY starts at $99/year and Sejda at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, HEY or Sejda?
Sejda has a free tier; the other does not. Paid plans start at $99/year for HEY and Free for Sejda.
Does HEY or Sejda run on more platforms?
HEY runs on Mac, Windows, Web, iOS, Android. Sejda runs on Web.
Can I use Sejda for free?
Yes. Sejda has a free tier, so you can try it without paying. HEY starts at $99/year.
What is HEY best used for?
HEY is most often used for someone who wants to replace gmail or icloud mail entirely with an email service built around approving senders before they reach the inbox, a user overwhelmed by newsletters and receipts who wants them automatically separated from person to person conversation, a family that wants shared but individually addressed email under one annual plan, a small company wanting hey for work on its own domain with the screener model for the whole team. Of those, someone who wants to replace gmail or icloud mail entirely with an email service built around approving senders before they reach the inbox and a user overwhelmed by newsletters and receipts who wants them automatically separated from person to person conversation are not what Sejda is typically brought in for.
What can HEY do that Sejda cannot?
HEY covers The Screener, Imbox, Feed and Paper Trail, Reply Later stack, Focus and Reply mode.

Answered from the vendors’ own pages

HEY: Can I use HEY with my existing Gmail address?

No. HEY provides its own hey.com email address; it is not a client layered over an existing Gmail or other account.

Sejda: How much does Sejda cost?

Sejda offers a free tier (no signup required), a Web Week Pass at $5 for 7 days, Web Monthly at $7.50/month, and Desktop+Web Annual at $63/year (30% savings versus monthly pricing).

Source
HEY: Is there a free plan?

No. HEY offers a trial but bills annually only, with no free tier and no month to month option for individuals.

Sejda: Does Sejda offer volume discounts?

Yes, teams receive progressive discounts: 10% for 2-4 users, 20% for 5-24 users, 40% for 25-49 users, and 60% for 50+ users.

Source
HEY: What is the Screener?

A feature that holds mail from any new sender until the user explicitly approves them, before it appears in the inbox at all.

Sejda: What are the limitations of Sejda's free plan?

The free plan includes page/hourly limits and restricted file uploads. Paid subscriptions unlock unlimited documents, no page or hourly limits, simultaneous multi-file processing, extended task duration up to 21 minutes, and large file uploads up to 500MB.

Source
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