Softwr

Productivity · head to head

Forest vs Spark Mail

Forest logo

Forest

Productivity

Stay focused, be present

From
Free
Rated
-
Full reviewWebsite
Spark Mail logo

Spark Mail

Productivity

AI-assisted email client from Readdle with a Smart Inbox and team collaboration features

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Forest no standalone desktop app; limited to browser extensions; Spark Mail several sync features route mail metadata and, for some features, credentials through Readdle servers, which is a materially different trust model from a local-only IMAP client.
  • They diverge on capability: Forest covers Focus timer, Spark Mail covers Smart Inbox.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Forest and Spark Mail actually diverge.

Attributes where Forest and Spark Mail differ
AttributeForestSpark Mail
Pricing modelUnknownPer user per month
PlatformsiOS, Android, Chrome, FirefoxmacOS, Windows, iOS, Android, Web
Founded2014Unknown

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 Forest

  • Focus timer
  • Virtual forest building
  • Real tree planting partnership
  • Website/app blocking
  • Statistics tracking
  • Achievements & rewards
  • Social features
  • Custom tree species

Only in Spark Mail

  • Smart Inbox
  • AI Copilot
  • AI Summaries
  • Team collaboration
  • Send later and snooze
  • Multi-account unified inbox

What people use each for

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

Forest

  • Study sessionsnot Spark Mail
  • Work focus timenot Spark Mail
  • Digital detoxnot Spark Mail
  • Pomodoro techniquenot Spark Mail
  • Phone addiction managementnot Spark Mail

Spark Mail

  • A freelancer juggling Gmail and Outlook accounts who wants one AI-assisted inboxnot Forest
  • A small support team sharing a single inbox with internal notes before replyingnot Forest
  • Someone who wants drafts and summaries generated without switching to a new mail hostnot Forest
  • A user who wants notification triage without writing their own filtersnot Forest

Where each one falls short

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

Forest

  • No standalone desktop app; limited to browser extensions
  • Mobile app pricing varies by platform; iOS one-time purchase vs. Android different model
  • Forest Plus features required for advanced analytics and custom tag tracking

Spark Mail

  • Several sync features route mail metadata and, for some features, credentials through Readdle servers, which is a materially different trust model from a local-only IMAP client.
  • It is a client over accounts you still pay for elsewhere, so the total cost is Spark plus whatever Gmail, Outlook or Fastmail plan you already hold.
  • The free tier lacks AI Copilot and summaries, so the features it is best known for sit behind the paid plan.
  • Team features are basic next to dedicated shared-inbox tools like Front or Help Scout, so a support team scaling past a few agents will likely outgrow it.
  • Windows and Android versions have historically lagged the macOS and iOS apps in feature parity.

Pricing, plan by plan

Forest

Free

No published plan breakdown. See the Forest review.

Spark Mail

Free
  • BasicFree
    • Unlimited accounts
    • Smart Inbox
    • Basic send later
  • Premium$7.99/month
    • AI Copilot and summaries
    • Unlimited snooze and send later
    • Priority support
  • Premium Teams$10/month
    • Shared inboxes
    • Delegation and internal comments
    • Admin controls

Which should you pick?

Choose Forest if

  • You need focus timer.
  • You want to start without paying.
  • You work on iOS, Android, Chrome, Firefox.
  • You also want virtual forest building.
Forest review

Choose Spark Mail if

  • You need smart inbox.
  • You want to start without paying.
  • You work on macOS, Windows, iOS, Android, Web.
  • You also want ai copilot.
Spark Mail review

Questions people ask

Is Forest or Spark Mail better?
Neither clearly leads. Forest starts at Free and Spark Mail at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Forest or Spark Mail?
Forest starts at Free and Spark Mail at Free.
Does Forest or Spark Mail run on more platforms?
Forest runs on iOS, Android, Chrome, Firefox. Spark Mail runs on macOS, Windows, iOS, Android, Web.
Can I use Forest for free?
Both have a free tier, so you can try either at no cost before committing.
What is Forest best used for?
Forest is most often used for study sessions, work focus time, digital detox, pomodoro technique. Of those, study sessions and work focus time are not what Spark Mail is typically brought in for.
What can Forest do that Spark Mail cannot?
Forest covers Focus timer, Virtual forest building, Real tree planting partnership, Website/app blocking. Spark Mail covers Smart Inbox, AI Copilot, AI Summaries, Team collaboration.

Answered from the vendors’ own pages

Forest: How much does Forest cost?

Forest has a free version with core features (timer, app blocking, group focus). Forest Plus subscription costs $3.33/month when billed annually at $39.99, with pricing varying by region and platform.

Source
Spark Mail: Does Spark host my email?

No. It is a client that connects to Gmail, Outlook, iCloud or any IMAP account; you still need a mail host.

Forest: What platforms does Forest support?

Forest is available on iOS (one-time purchase $3.99), Android (free with ads, or $1.99 one-time for ad-free), and as a browser extension for Chrome and Firefox.

Source
Spark Mail: Does Spark store my email credentials on its servers?

For some features, including cross-device snooze and send-later sync, yes. It is part of how those features stay consistent across devices.

Forest: What is Forest's tree planting program?

Forest has partnered with Trees for the Future to plant real trees. Users can spend earned focus coins to fund tree planting in Kenya, Senegal, Tanzania, Uganda, and Cameroon. Over 2.1 million real trees have been planted.

Source
Spark Mail: Is there a one-time purchase option?

No, Spark is subscription only for individuals and teams; the base client is free but AI and unlimited scheduling need Premium.

Forest: Does Forest work offline?

Yes. Forest's core focus experience including the timer, tree growth, and stats works completely offline. This allows use on airplanes, subways, and areas without internet connectivity.

Source
Forest: Is there a Forest desktop app?

No. Forest does not have an official standalone desktop application. Desktop access is available through browser extensions for Chrome and Firefox only. Some users run the mobile app via emulators like BlueStacks.

Source
Forest: What features are in Forest Plus?

Forest Plus includes all Mindful Space soundscapes, custom app allowlists, advanced analytics with custom tags, exclusive tree species, 3x coin boost, and the ability to plant up to 5 real trees annually.

Source
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