Softwr

Database & Data Management · head to head

ClickHouse vs Things 3

ClickHouse logo

ClickHouse

Database & Data Management

Fast open-source column-oriented database for real-time analytics

From
Free
Rated
-
Things 3 logo

Things 3

Productivity

The award-winning personal task manager

From
$9.99/one-time
Rated
-

The short version

  • Only ClickHouse has a free tier, so it costs nothing to try first.
  • Each has a real cost: ClickHouse limited multi-row atomic transactions and expensive UPDATE/DELETE operations unsuitable for transactional systems; Things 3 no team collaboration, task sharing, or task assignment features
  • They diverge on capability: ClickHouse covers Column-oriented Storage, Things 3 covers Today view.

Where they differ

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

Attributes where ClickHouse and Things 3 differ
AttributeClickHouseThings 3
Starting priceFree$9.99/one-time
Free tierYesNo
PlatformsLinux, macOS, Windows (via Docker)macOS, iOS, iPadOS, watchOS, visionOS
CategoryDatabase & Data ManagementProductivity
Founded20212004

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

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 ClickHouse

  • Column-oriented Storage
  • Real-time Analytics
  • SQL Support
  • Linear Scalability
  • Data Compression
  • Vectorized Query Execution
  • Approximate Calculations
  • Kafka

Only in Things 3

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

What people use each for

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

ClickHouse

  • Business intelligencenot Things 3
  • Data warehousingnot Things 3
  • Real-time analyticsnot Things 3
  • Reportingnot Things 3
  • Machine learningnot Things 3

Things 3

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

Where each one falls short

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

ClickHouse

  • Limited multi-row atomic transactions and expensive UPDATE/DELETE operations unsuitable for transactional systems
  • Requires upfront schema design discipline with MergeTree engine choices and sort/partition keys
  • Experimental vector search support, not production-ready for vector operations
  • Different query syntax from standard SQL requiring migration planning
  • Limited JOIN capabilities compared to traditional relational databases
  • Migration complexity with 2-4 weeks estimated for data type mapping and query translation

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

ClickHouse

Free

No published plan breakdown. See the ClickHouse review.

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 ClickHouse if

  • You need column-oriented storage.
  • You want to start without paying.
  • You work on Linux, macOS, Windows (via Docker).
  • You also want real-time analytics.

Choose Things 3 if

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

Questions people ask

Is ClickHouse or Things 3 better?
Neither clearly leads. ClickHouse 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, ClickHouse or Things 3?
ClickHouse has a free tier; the other does not. Paid plans start at Free for ClickHouse and $9.99/one-time for Things 3.
Does ClickHouse or Things 3 run on more platforms?
ClickHouse runs on Linux, macOS, Windows (via Docker). Things 3 runs on macOS, iOS, iPadOS, watchOS, visionOS.
Can I use ClickHouse for free?
Yes. ClickHouse has a free tier, so you can try it without paying. Things 3 starts at $9.99/one-time.
What is ClickHouse best used for?
ClickHouse is most often used for business intelligence, data warehousing, real-time analytics, reporting. Of those, business intelligence and data warehousing are not what Things 3 is typically brought in for.
What can ClickHouse do that Things 3 cannot?
ClickHouse covers Column-oriented Storage, Real-time Analytics, SQL Support, Linear Scalability. Things 3 covers Today view, Projects and areas, Quick entry, Tags.

Answered from the vendors’ own pages

ClickHouse: What is ClickHouse best used for?

ClickHouse is optimized for analytical workloads on large datasets. It excels at fast aggregations and queries, being 10-100x faster than PostgreSQL on large aggregations.

Source
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
ClickHouse: Does ClickHouse support transactions?

ClickHouse has limited transaction support and expensive UPDATE/DELETE operations. It is not suitable for transactional workloads requiring strict ACID guarantees.

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
ClickHouse: How does ClickHouse compare to PostgreSQL?

ClickHouse is 10-100x faster for analytics but PostgreSQL is better for transactional workloads. Many teams use both: PostgreSQL for writes via MaterializedPostgreSQL replication to ClickHouse for analytics.

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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