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Personal Finance · head to head

Firefly III vs Strands

Firefly III logo

Firefly III

Personal Finance

Free, open source, self-hosted personal finance manager with double-entry style accounting

From
Free
Rated
-
Full reviewWebsite
Strands logo

Strands

Personal Finance

Personal and business financial management modules for banks, owned by CRIF

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Firefly III has a free tier, so it costs nothing to try first.
  • Each has a real cost: Firefly III there is no official managed hosting, so a non-technical user has no easy on-ramp the way Actual Budget offers with its paid hosted sync.; Strands transaction categorisation accuracy depends on local merchant data, and banks in smaller markets face months of tuning before customers trust the categories shown.
  • They diverge on capability: Firefly III covers Double-entry style ledger, Strands covers Transaction categorisation.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Firefly III and Strands actually diverge.

Attributes where Firefly III and Strands differ
AttributeFirefly IIIStrands
Starting priceFreeOn request
Pricing modelOpen source, no licence feequote
Free tierYesNo
PlatformsWeb, Linux, DockerWeb, iOS, Android, REST API

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

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 Firefly III

  • Double-entry style ledger
  • Multi-currency accounts
  • Bill and subscription tracking
  • Rule engine
  • Reports and charts
  • API access

Only in Strands

  • Transaction categorisation
  • Personal financial management
  • Business financial management
  • Lighthouse
  • Automated savings
  • Account aggregation

What people use each for

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

Firefly III

  • A self-hoster already running a home server or NAS who wants their financial ledger on the same infrastructurenot Strands
  • Someone who wants double-entry style accuracy rather than simple envelope budgetingnot Strands
  • A privacy-focused user who refuses to put financial data on any third-party server, hosted or otherwisenot Strands
  • A developer who wants API access to build custom bank import scripts for accounts with no standard connectornot Strands

Strands

  • A retail bank adding budgeting and spending insight without building a categorisation enginenot Firefly III
  • A bank wanting personalised product offers driven by observed spending and credit datanot Firefly III
  • A credit union offering small business customers cash flow forecasting inside online bankingnot Firefly III
  • A Nordic institution combining Strands insight with open banking account aggregationnot Firefly III

Where each one falls short

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

Firefly III

  • There is no official managed hosting, so a non-technical user has no easy on-ramp the way Actual Budget offers with its paid hosted sync.
  • The double-entry-influenced model is less intuitive for newcomers than simple envelope budgeting, and the learning curve is real.
  • Automatic bank sync depends on the community-run importer and third-party connectors, and coverage and reliability vary a lot by bank and country.
  • Mobile access is via a web interface rather than a polished native app, which is a step behind Actual Budget or Lunch Money on phones.
  • Because there is no company behind it, security patching and feature development depend entirely on volunteer maintainer time.

Strands

  • Transaction categorisation accuracy depends on local merchant data, and banks in smaller markets face months of tuning before customers trust the categories shown.
  • It is now a product line inside CRIF, a credit bureau, so roadmap priorities follow group data strategy rather than standalone software competition.
  • Commercial terms are often bundled with other CRIF services, which makes a standalone comparison against a pure PFM vendor harder to run.
  • Money management features have weak measurable impact on bank revenue, so the business case relies on engagement metrics that are difficult to tie to profit.
  • It is a white-label component, so the bank still owns design, support and customer communication, and a poor in-app implementation reflects on the bank rather than the vendor.

Pricing, plan by plan

Firefly III

Free
  • Firefly IIIFree
    • Full functionality, self-hosted
    • No usage limits
    • Community support, donations accepted

Strands

On request
  • Strands AI Finance Suite$undefined/year
    • Licence scaled by end customers or active users
    • Modules licensed separately for personal, business and Lighthouse
    • Implementation and categorisation tuning charged as a project

Which should you pick?

Choose Firefly III if

  • You need double-entry style ledger.
  • You want to start without paying.
  • You work on Web, Linux, Docker.
  • You also want multi-currency accounts.
Firefly III review

Choose Strands if

  • You need transaction categorisation.
  • You work on Web, iOS, Android, REST API.
  • You also want personal financial management.
Strands review

Questions people ask

Is Firefly III or Strands better?
Neither clearly leads. Firefly III starts at Free and Strands at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Firefly III or Strands?
Firefly III has a free tier; the other does not. Paid plans start at Free for Firefly III and On request for Strands.
Does Firefly III or Strands run on more platforms?
Firefly III runs on Web, Linux, Docker. Strands runs on Web, iOS, Android, REST API.
Can I use Firefly III for free?
Yes. Firefly III has a free tier, so you can try it without paying. Strands starts at On request.
What is Firefly III best used for?
Firefly III is most often used for a self-hoster already running a home server or nas who wants their financial ledger on the same infrastructure, someone who wants double-entry style accuracy rather than simple envelope budgeting, a privacy-focused user who refuses to put financial data on any third-party server, hosted or otherwise, a developer who wants api access to build custom bank import scripts for accounts with no standard connector. Of those, a self-hoster already running a home server or nas who wants their financial ledger on the same infrastructure and someone who wants double-entry style accuracy rather than simple envelope budgeting are not what Strands is typically brought in for.
What can Firefly III do that Strands cannot?
Firefly III covers Double-entry style ledger, Multi-currency accounts, Bill and subscription tracking, Rule engine. Strands covers Transaction categorisation, Personal financial management, Business financial management, Lighthouse.

Answered from the vendors’ own pages

Firefly III: Can I pay someone to host Firefly III for me?

Not through the core project; some third-party providers sell Firefly III hosting independently, but there is no official managed service.

Strands: Who owns Strands?

CRIF, the Italian credit bureau and information services group, which acquired it to combine money management software with credit data.

Firefly III: Does it support multiple currencies?

Yes, natively, including accounts and transactions in different currencies.

Strands: Is it sold to consumers?

No. It is licensed to banks and credit unions who embed it in their own applications under their own brand.

Firefly III: Is it really free with no paid tier?

Yes, the software is free and open source under the AGPL; the project accepts donations but sells nothing.

Strands: Does it include account aggregation?

It supports aggregated external accounts, with CRIF and partners such as Enable Banking supplying the open banking connectivity.

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