Firefly III
Firefly III is pushing multiple development builds daily with no published changelog content
A side-by-side editorial comparison of Increase and Bigcapital — release velocity, themes, recent moves, and the top alternatives to consider.
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.
Bigcapital ships multiple releases per week, adding SMS notifications, banking audit logs, and Plaid hardening.
Bigcapital is an open-source cloud accounting product shipping at a high cadence — multiple tagged releases per week across server, webapp, and SDK layers. The last two weeks show a focused push on banking features: Plaid sync hardening, audit logs for banking modules, auto-recognition of bank transactions via queue, and a landed cost feature flag. SMS notifications are being wired in behind a feature flag, alongside a broad internal refactor from snake_case to camelCase API responses.
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.
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.
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.
Bigcapital is an open-source cloud accounting product shipping at a high cadence — multiple tagged releases per week across server, webapp, and SDK layers. The last two weeks show a focused push on banking features: Plaid sync hardening, audit logs for banking modules, auto-recognition of bank transactions via queue, and a landed cost feature flag. SMS notifications are being wired in behind a feature flag, alongside a broad internal refactor from snake_case to camelCase API responses.
The product is deepening its banking and financial operations surface. Plaid integration is getting production-grade attention (concurrent-run guards, proper disconnect handling, audit trails), and landed cost accounting signals a move toward more complex inventory and purchasing workflows. The API SDK with typed OpenAPI coverage is being built in parallel, suggesting a platform push toward integrations and potentially a public API offering.
SMS notifications and the typed SDK will likely ship out of feature-flag status as the next named releases. Landed cost, once out of flag, will be the headline capability for users with inventory and import workflows.
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 Increase or Bigcapital.
Firefly III is pushing multiple development builds daily with no published changelog content
Shift4 maintains a steady multi-product release cadence across its hospitality POS and payments stack.
Stigg ships natural language contract management, completing its build-out as an AI-native commercial operations layer.
FreeAgent is expanding beyond freelancers into landlord-specific accounting with automated rental statement processing.
QuickBooks rebuilds its bank feed around partial matches, AI-coded fields, and a new accountant platform.
LNbits v1.6.0 replaces Python extension security reviews with WASM sandboxing — a new distribution model for Lightning tools.
See all Increase alternatives → · See all Bigcapital alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
They serve adjacent needs but don't currently overlap on shipped themes. Bigcapital 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.
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Bigcapital 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.
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.
Top Bigcapital alternatives in Finance are ranked by recent ship velocity. Browse the "Bigcapital alternatives" section above for the current picks, or visit /alternatives/bigcapital for the full list with editorial commentary on each.