Stigg
Stigg shows card brand and wallet type on payment methods as its billing reach widens.
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
What is Firefly III?
Firefly III's develop builds continue into October 21, still with no changelog.
All ten recent entries are automated develop pre-releases from October 13 to 21, including four on October 17 and two on October 18. Each carries the same boilerplate and leaves out the changelog, so this feed shows no user-facing progress.
What is Increase?
A banking-as-a-service API that now sells compliance and blockchain rails, not just payments
Increase ships a quarterly newsletter rather than a running changelog, so each entry bundles a quarter of API work. The last three quarters have moved past core payment rails into the surrounding infrastructure: 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.
Firefly III vs Increase: editorial side-by-side
Firefly III
5.0FINANCE
Firefly III's develop builds continue into October 21, still with no changelog.
◆ Current state
All ten recent entries are automated develop pre-releases from October 13 to 21, including four on October 17 and two on October 18. Each carries the same boilerplate and leaves out the changelog, so this feed shows no user-facing progress.
◆ Where it's heading
The project is in a continuous-build phase on the develop branch, with work collecting for a stable release that isn't shown here. Builds arrive daily or more, which signals active work but not its direction.
◆ Prediction
These entries don't show when the next stable release lands. The next useful signal will be a versioned release with a real changelog.
Increase
3.8FINANCE
A banking-as-a-service API that now sells compliance and blockchain rails, not just payments
◆ Current state
Increase ships a quarterly newsletter rather than a running changelog, so each entry bundles a quarter of API work. The last three quarters have moved past core payment rails into the surrounding infrastructure: 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.
Shift4
Shift4 posts Gift Card & Loyalty 26.2.1 notes in three languages ahead of an October 21 release.
GOAT.tax
GOAT.tax adds Form 6765 Section G reporting for large R&D credit filers.
Kill Bill
Kill Bill keeps two release lines alive with small invoice-template changes.
InvoiceShelf
InvoiceShelf 3.0 alphas let Claude, ChatGPT and Cursor draft and send invoices.
Zluri
Zluri is turning SaaS management into identity governance, and Segregation of Duties is the pivot.
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.
- 2d agoFirefly IIIFirefly III develop build 2026-10-21
- 4d agoFirefly IIIFirefly III develop build 2026-10-19
- 5d agoFirefly IIIFirefly III develop build 2026-10-18.1
- 5d agoFirefly IIIFirefly III develop build 2026-10-18
- 6d agoFirefly IIIFirefly III develop build 2026-10-17.3
- 6d agoFirefly IIIFirefly III develop build 2026-10-17.2
- 3mo agoIncreaseManaged compliance and blockchain transfers land in Q2 ⚡
- 6mo agoIncreaseEntity onboarding, 3D Secure and IP-restricted keys
- 9mo agoIncreaseFedNow, Push-to-Card and a Cards Disputes API
- 1y agoIncreaseEvent log filtering and check transfer work
- 1y agoIncreaseFile links, check deposit images, Apple Pay history
- 1y agoIncreaseOAuth applications, lockboxes and exports
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 3.8), 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 3.8), 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.