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Technology · head to head

Thought Machine vs Whimsical

Thought Machine logo

Thought Machine

Technology

Cloud native core banking where products are written as smart contracts

From
On request
Rated
-
Full reviewWebsite
Whimsical logo

Whimsical

Technology

Where great ideas take shape

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Whimsical has a free tier, so it costs nothing to try first.
  • Each has a real cost: Thought Machine a core replacement is a two to four year programme at an established bank, and the licence is a minority of total cost against system integrator fees, parallel running and data migration.; Whimsical the free plan is capped at 3 team boards, 3 teams and 10 guest seats
  • They diverge on capability: Thought Machine covers Smart contract product engine, Whimsical covers Flowcharts.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Thought Machine and Whimsical actually diverge.

Attributes where Thought Machine and Whimsical differ
AttributeThought MachineWhimsical
Starting priceOn requestFree
Pricing modelquotesubscription
Free tierNoYes
PlatformsWeb, API, CloudWeb
FoundedUnknown2017

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

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 Thought Machine

  • Smart contract product engine
  • Cloud native architecture
  • Real time ledger
  • Vault Payments
  • API first design
  • Multi entity and multi currency
  • Product versioning and testing
  • Configurable posting rules

Only in Whimsical

  • Flowcharts
  • Wireframes
  • Mind maps
  • Sticky notes
  • Docs
  • Real-time collaboration
  • Templates
  • Keyboard shortcuts

What people use each for

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

Thought Machine

  • A large bank launching a separate digital brand on a clean core rather than migrating the back booknot Whimsical
  • A bank whose product launches are blocked by vendor change requests on a legacy corenot Whimsical
  • An institution needing real time balances and postings for instant payment obligationsnot Whimsical
  • A group consolidating multiple country cores onto one multi entity platformnot Whimsical

Whimsical

  • Product planningnot Thought Machine
  • UI/UX designnot Thought Machine
  • Brainstormingnot Thought Machine
  • Process documentationnot Thought Machine
  • Project visualizationnot Thought Machine

Where each one falls short

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

Thought Machine

  • A core replacement is a two to four year programme at an established bank, and the licence is a minority of total cost against system integrator fees, parallel running and data migration.
  • The smart contract model presumes a bank can write and maintain Python financial products, and institutions without that engineering capability end up outsourcing the very flexibility they bought.
  • Cloud infrastructure cost sits with the bank and is not trivial at scale, so total cost of ownership comparisons against a hosted legacy core often miss a large recurring line.
  • Thought Machine has made two rounds of job cuts pursuing profitability, which is a legitimate supplier stability concern for a system a bank expects to run for fifteen years.
  • The functional footprint is core ledger and product engine, so origination, collections, regulatory reporting and channels all come from other vendors, and the integration estate around Vault is the bank's problem to design and own.

Whimsical

  • The free plan is capped at 3 team boards, 3 teams and 10 guest seats
  • File uploads are limited to 5MB per file and 1GB in total on the free plan
  • Version history on the free plan goes back 7 days
  • Voting, the timer, private teams, the GitHub integration, password-protected files and watermark removal all need Pro at $10 per editor per month
  • SSO and SAML are Business tier only at $20 per editor per month

Pricing, plan by plan

Thought Machine

On request
  • Vault Core$undefined/year
    • Quoted per institution, typically on account volumes or annual contract value
    • Implementation and system integrator costs commonly exceed the licence fee
    • Cloud infrastructure costs are the bank's and are not included

Whimsical

Free
  • StarterFree
    • Up to 4 boards
    • Unlimited viewers
    • 7-day version history
  • Pro$10/month
    • Unlimited boards
    • Unlimited version history
    • Advanced permissions
  • Org$20/month
    • Everything in Pro
    • SSO
    • User management

Which should you pick?

Choose Thought Machine if

  • You need smart contract product engine.
  • You work on Web, API, Cloud.
  • You also want cloud native architecture.
Thought Machine review

Choose Whimsical if

  • You need flowcharts.
  • You want to start without paying.
  • You also want wireframes.
Whimsical review

Questions people ask

Is Thought Machine or Whimsical better?
Neither clearly leads. Thought Machine starts at On request and Whimsical at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Thought Machine or Whimsical?
Whimsical has a free tier; the other does not. Paid plans start at On request for Thought Machine and Free for Whimsical.
Does Thought Machine or Whimsical run on more platforms?
Thought Machine runs on Web, API, Cloud. Whimsical runs on Web.
Can I use Whimsical for free?
Yes. Whimsical has a free tier, so you can try it without paying. Thought Machine starts at On request.
What is Thought Machine best used for?
Thought Machine is most often used for a large bank launching a separate digital brand on a clean core rather than migrating the back book, a bank whose product launches are blocked by vendor change requests on a legacy core, an institution needing real time balances and postings for instant payment obligations, a group consolidating multiple country cores onto one multi entity platform. Of those, a large bank launching a separate digital brand on a clean core rather than migrating the back book and a bank whose product launches are blocked by vendor change requests on a legacy core are not what Whimsical is typically brought in for.
What can Thought Machine do that Whimsical cannot?
Thought Machine covers Smart contract product engine, Cloud native architecture, Real time ledger, Vault Payments. Whimsical covers Flowcharts, Wireframes, Mind maps, Sticky notes.

Answered from the vendors’ own pages

Thought Machine: Is Vault Core genuinely cloud native?

Yes. It is containerised, runs on Kubernetes on public cloud, and posts in real time rather than in overnight batch.

Whimsical: What are Whimsical's pricing tiers?

Whimsical offers three plans: Free at 0 dollars per month per editor, Pro at 10 dollars per month per editor, and Business at 20 dollars per month per editor.

Source
Thought Machine: How long does a migration take?

Eighteen months at the absolute fastest for a narrow greenfield launch; two to four years for a phased migration at an established bank.

Whimsical: What is included in the Free plan?

The Free plan allows creation of up to 50 board objects and 50 doc blocks per month, includes watermarked exports, and provides 7-day version history. Storage is limited to 1GB.

Source
Thought Machine: Does the licence fee represent the total cost?

No. Implementation, system integration, parallel running and cloud infrastructure typically cost more than the licence over the programme.

Whimsical: What features unlock in the Pro plan?

The Pro plan removes the object creation limits, provides unlimited board objects and doc blocks, removes watermarks from exports, extends version history to 90 days, and offers 100GB of storage.

Source
Whimsical: What security and team features come with Business?

The Business plan adds private teams, SAML single sign-on, SCIM and advanced security controls, unlimited version history, priority support, and a dedicated success manager. Storage starts at 2TB.

Source
Whimsical: Do discounts apply for annual billing?

Yes, annual billing offers a 17 percent discount compared to monthly rates. Additionally, nonprofits receive a 20 percent discount and students and teachers get full access.

Source
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