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Comparison · Finance

Firefly III vs Increase

A side-by-side editorial comparison of Firefly III and Increase — release velocity, themes, recent moves, and the top alternatives to consider.

Firefly III vs Increase: at a glance

FeatureFirefly IIIIncrease
SectorFinanceFinance
Velocity score5.02.5
Sparks · 30d00
Top themespersonal finance, self-hosted, pre-release, open sourcebanking-as-a-service, payments, compliance, api
Last editorial update12h ago12d ago
WebsiteVisit →Visit →

What is Firefly III?

Firefly III keeps tagging develop builds daily, still with no release notes.

Firefly III's feed remains automated develop pre-releases. November 12 and 13 added two more develop tags and another boilerplate development release, on top of four on November 12 alone. None includes a changelog.

Read the full Firefly III trajectory →

What is Increase?

Increase enriches card transactions with Spade merchant data between its quarterly letters.

A standalone update joins the quarterly newsletters: card transactions now carry a Spade enrichment record with the merchant's name, legal name, logo, website, phone number, store location and an industry category up to four levels deep. The last three quarters moved past core payment rails into managed compliance, entity onboarding sessions, 3D Secure, push provisioning and IP-restricted API keys. SDK coverage has widened to C#, PHP and Ruby, and the documentation was reworked to be readable by LLMs.

Read the full Increase trajectory →

Firefly III vs Increase: editorial side-by-side

F5.0

Firefly III keeps tagging develop builds daily, still with no release notes.

◆ Current state

Firefly III's feed remains automated develop pre-releases. November 12 and 13 added two more develop tags and another boilerplate development release, on top of four on November 12 alone. None includes a changelog.

◆ Where it's heading

The project is in a pre-release stretch where builds ship several times a day without notes. The feed shows activity but not what is changing.

◆ Prediction

The feed does not show what the next stable release will contain; a tagged version with a changelog is the next thing worth watching.

I
Increase
FINANCE
2.5

Increase enriches card transactions with Spade merchant data between its quarterly letters.

◆ Current state

A standalone update joins the quarterly newsletters: card transactions now carry a Spade enrichment record with the merchant's name, legal name, logo, website, phone number, store location and an industry category up to four levels deep. The last three quarters moved past core payment rails into managed compliance, entity onboarding sessions, 3D Secure, push provisioning and IP-restricted API keys. SDK coverage has widened to C#, PHP and Ruby, and the documentation was reworked to be readable by LLMs.

◆ Where it's heading

The arc runs from moving money to operating a bank program end to end. Early quarters added rails (FedNow, Push-to-Card, check transfers); recent ones add the compliance, onboarding and dispute machinery a customer would otherwise build or buy separately. Q2 2026 adds blockchain transfers alongside managed compliance, and flags cross-border payments and lending APIs as next.

◆ Prediction

Expect the cross-border payments and lending APIs named in the Q2 2026 letter to ship as the next quarter's headline, extending the same pattern of absorbing adjacent financial products into the core API.

Alternatives to Firefly III and Increase

Other Finance products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Firefly III or Increase.

See all Firefly III alternatives → · See all Increase alternatives →

Recent activity from Firefly III and Increase

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 14h agoFirefly IIIFirefly III develop build 2026-11-13 (22:20)
  2. 1d agoFirefly IIIFirefly III develop tag 2026-11-13
  3. 1d agoFirefly IIIFirefly III develop tag 2026-11-12 (5)
  4. 1d agoFirefly IIIFirefly III develop tag 2026-11-12 (4)
  5. 1d agoFirefly IIIFirefly III develop build 2026-11-12 (afternoon)
  6. 2d agoFirefly IIIFirefly III develop build 2026-11-12 (10:52)
  7. 1mo agoIncreaseIncrease adds real-time merchant data from Spade to card transactions
  8. 3mo agoIncreaseManaged compliance and blockchain transfers land in Q2 ⚡
  9. 6mo agoIncreaseEntity onboarding, 3D Secure and IP-restricted keys
  10. 10mo agoIncreaseFedNow, Push-to-Card and a Cards Disputes API
  11. 1y agoIncreaseEvent log filtering and check transfer work
  12. 1y agoIncreaseFile links, check deposit images, Apple Pay history

Frequently asked questions

What is the difference between Firefly III and Increase?

They serve adjacent needs but don't currently overlap on shipped themes. Firefly III is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is Firefly III better than Increase?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Firefly III is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Finance products to evaluate alongside.

What are the best alternatives to Firefly III?

Top Firefly III alternatives in Finance are ranked by recent ship velocity. Browse the "Firefly III alternatives" section above for the current picks, or visit /alternatives/firefly-iii for the full list with editorial commentary on each.

What are the best alternatives to Increase?

Top Increase alternatives in Finance are ranked by recent ship velocity. Browse the "Increase alternatives" section above for the current picks, or visit /alternatives/increase for the full list with editorial commentary on each.