Firefly III
Firefly III's develop builds continue into October 21, still with no changelog.
A side-by-side editorial comparison of Increase and LNbits — 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.
LNbits ships sandboxed WASM extensions, opening self-hosted Lightning wallets to uncurated plugins.
LNbits v1.6.0 was the project's most architecturally significant release: sandboxed WASM extensions let anyone write and share plugins without core-developer security review, addressing the bottleneck that kept third-party contributions slow. The same release shipped native Lightning Addresses in wallet core, an Electrum-backed block explorer, and Bark funding source support. v1.6.1 and v1.6.2 have since patched a PostgreSQL backup regression and closed NWC payment-failure false positives.
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.
LNbits v1.6.0 was the project's most architecturally significant release: sandboxed WASM extensions let anyone write and share plugins without core-developer security review, addressing the bottleneck that kept third-party contributions slow. The same release shipped native Lightning Addresses in wallet core, an Electrum-backed block explorer, and Bark funding source support. v1.6.1 and v1.6.2 have since patched a PostgreSQL backup regression and closed NWC payment-failure false positives.
The WASM extension model is a deliberate shift from curated gallery to permissive, sandbox-first plugin ecosystem — LNbits is betting that sandboxing replaces curation as the trust mechanism. Alongside that, native Lightning Addresses and payment breakdowns push the product further up the stack, adding first-class wallet UX that previously required an extension. LNbits is moving from infrastructure toolkit toward a more complete, self-sovereign financial application.
The next likely move is expanding the WASM sandbox API surface — more core hooks exposed to extensions, tooling improvements for the WASM manifest format, and a community-driven extension registry that can grow without gating on core-team review.
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 LNbits.
Firefly III's develop builds continue into October 21, still with no changelog.
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GOAT.tax adds Form 6765 Section G reporting for large R&D credit filers.
Kill Bill keeps two release lines alive with small invoice-template changes.
InvoiceShelf 3.0 alphas let Claude, ChatGPT and Cursor draft and send invoices.
See all Increase alternatives → · See all LNbits alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
Both compete on the same themes — payments — within Finance. LNbits is currently shipping more aggressively (velocity 6.3 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. LNbits is currently shipping more aggressively (velocity 6.3 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 LNbits alternatives in Finance are ranked by recent ship velocity. Browse the "LNbits alternatives" section above for the current picks, or visit /alternatives/lnbits for the full list with editorial commentary on each.