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Pi vs Things 3

Pi logo

Pi

Software

Personal AI by Inflection

From
Free
Rated
-
Full reviewWebsite
Things 3 logo

Things 3

Software

The award-winning personal task manager

From
$9.99/one-time
Rated
-
Full reviewWebsite

The short version

  • Only Pi has a free tier, so it costs nothing to try first.
  • Each has a real cost: Pi inflection AI's own homepage (2024 archive) pivoted its headline positioning to enterprise AI licensing rather than the consumer Pi assistant, with no consumer pricing or plans published on the corporate site; Things 3 no team collaboration, task sharing, or task assignment features
  • They diverge on capability: Pi covers Conversational AI, Things 3 covers Today view.

Where they differ

Only the attributes on which Pi and Things 3 actually diverge.

Attributes where Pi and Things 3 differ
AttributePiThings 3
Starting priceFree$9.99/one-time
Pricing modelfreeUnknown
Free tierYesNo
PlatformsWeb, Ios, AndroidmacOS, iOS, iPadOS, watchOS, visionOS
Founded20222004

Identical on both: user rating (Not yet rated), category (Unknown).

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 Pi

  • Conversational AI
  • Voice mode
  • Empathetic responses
  • Multi-platform
  • Mobile apps
  • Web interface
  • Web support
  • Android support

Only in Things 3

  • Today view
  • Projects and areas
  • Quick entry
  • Tags
  • Calendar integration
  • Apple Calendar
  • Siri
  • Shortcuts

Both cover

  • Ios support

What people use each for

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

Pi

  • ai tools managementnot Things 3
  • Workflow automationnot Things 3
  • Reportingnot Things 3

Things 3

  • Schedulingnot Pi
  • Appointment bookingnot Pi
  • Time trackingnot Pi
  • Resource managementnot Pi
  • Team coordinationnot Pi

Where each one falls short

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

Pi

  • Inflection AI's own homepage (2024 archive) pivoted its headline positioning to enterprise AI licensing rather than the consumer Pi assistant, with no consumer pricing or plans published on the corporate site
  • Requires iOS 16 or later, per the App Store listing

Things 3

  • No team collaboration, task sharing, or task assignment features
  • Apple ecosystem only, with no Windows, Android, or web version
  • No third-party app integrations beyond Apple's ecosystem
  • Cannot attach files or images to tasks, only text notes
  • No time blocking or calendar integration for scheduling tasks into specific time slots

Pricing, plan by plan

Pi

Free
  • FreeFree
    • Unlimited conversations
    • Voice mode
    • All platforms

Things 3

$9.99/one-time
  • iPhone/Watch$9.99/one-time
  • iPad$19.99/one-time
  • Mac$49.99/one-time

Which should you pick?

Choose Pi if

  • You need conversational ai.
  • You want to start without paying.
  • You work on Web, Ios, Android.
  • You also want voice mode.
Pi review

Choose Things 3 if

  • You need today view.
  • You work on macOS, iOS, iPadOS, watchOS, visionOS.
  • You also want projects and areas.
Things 3 review

Questions people ask

Is Pi or Things 3 better?
Neither clearly leads. Pi starts at Free and Things 3 at $9.99/one-time, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Pi or Things 3?
Pi has a free tier; the other does not. Paid plans start at Free for Pi and $9.99/one-time for Things 3.
Does Pi or Things 3 run on more platforms?
Pi runs on Web, Ios, Android. Things 3 runs on macOS, iOS, iPadOS, watchOS, visionOS.
Can I use Pi for free?
Yes. Pi has a free tier, so you can try it without paying. Things 3 starts at $9.99/one-time.
What is Pi best used for?
Pi is most often used for ai tools management, workflow automation, reporting. Of those, ai tools management and workflow automation are not what Things 3 is typically brought in for.
What can Pi do that Things 3 cannot?
Pi covers Conversational AI, Voice mode, Empathetic responses, Multi-platform. Things 3 covers Today view, Projects and areas, Quick entry, Tags. Both handle Ios support.

Answered from the vendors’ own pages

Things 3: Does Things 3 support team collaboration?

No. Things 3 is designed for individual use only with no task sharing, team workspaces, task assignment, or commenting features.

Source
Things 3: What platforms does Things 3 run on?

Things 3 is exclusive to Apple devices: macOS, iOS, iPadOS, watchOS, and visionOS. There is no Windows, Android, or web version.

Source
Things 3: How much does Things 3 cost?

Things 3 uses a one-time purchase model: $9.99 for iPhone/Watch, $19.99 for iPad, and $49.99 for Mac. Total cost for all platforms is approximately $80 with no subscription required.

Source
Things 3: Does Things 3 sync across devices?

Yes. Things Cloud keeps your to-dos in sync across all your Apple devices automatically. There is no extra cost for cloud synchronization.

Source
Things 3: Can you attach files or images to tasks in Things 3?

No. Things 3 does not support attachments. You can only add notes (text) to tasks.

Source
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