Firefly III
Firefly III is pushing multiple development builds daily with no published changelog content
A side-by-side editorial comparison of SolidInvoice and LNbits — release velocity, themes, recent moves, and the top alternatives to consider.
SolidInvoice finally shipped the 3.0 it spent a year staging in alphas and betas.
After more than twelve months of alpha and beta releases, SolidInvoice 3.0 landed in June with the accumulated work of that cycle: email verification, Google OAuth, two-factor authentication, real user profiles, flat-rate tax support and a Meilisearch-backed search layer. Underneath it, the project moved onto a shared platform config and pulled trial and SaaS logic into an external bundle. The 2.3 line ran in parallel the whole time, absorbing security backports.
LNbits v1.6.0 replaces Python extension security reviews with WASM sandboxing — a new distribution model for Lightning tools.
LNbits v1.6.0 shipped WASM extensions: sandboxed plugins that can be written and shared without requiring core-developer security review, directly addressing the bottleneck that limited ecosystem growth. Lightning Addresses moved from extension territory into core, and the block explorer via Electrum and Bark (barkd) funding source added new infrastructure options. v1.6.1 followed with phoenixd node page, NWC false-failure fixes, and payments CSV comment export — iterative polish on the 1.6.0 surface.
After more than twelve months of alpha and beta releases, SolidInvoice 3.0 landed in June with the accumulated work of that cycle: email verification, Google OAuth, two-factor authentication, real user profiles, flat-rate tax support and a Meilisearch-backed search layer. Underneath it, the project moved onto a shared platform config and pulled trial and SaaS logic into an external bundle. The 2.3 line ran in parallel the whole time, absorbing security backports.
Two threads run through this changelog. The visible one is identity and account management catching up to what users expect from a billing app — signup verification, OAuth, 2FA, self-serve company deletion. The less visible one is the codebase being restructured around reusable solidworx platform components with Sentry and Prometheus instrumentation, which is the shape of a project preparing to run itself as a hosted service rather than only as a download.
With 3.0 out and 3.0.1 already repairing the upgrade migration path, the near-term work is likely more 3.0.x stabilization for people coming off 2.3 rather than new features.
LNbits v1.6.0 shipped WASM extensions: sandboxed plugins that can be written and shared without requiring core-developer security review, directly addressing the bottleneck that limited ecosystem growth. Lightning Addresses moved from extension territory into core, and the block explorer via Electrum and Bark (barkd) funding source added new infrastructure options. v1.6.1 followed with phoenixd node page, NWC false-failure fixes, and payments CSV comment export — iterative polish on the 1.6.0 surface.
The WASM extension model shifts security isolation from audit-based to runtime-sandbox-based, which should increase the throughput of the extension ecosystem considerably. Lightning Addresses as a core feature signals LNbits is moving toward being a complete Lightning wallet experience rather than just a developer toolkit. The multi-backend funding source expansion (Bark, Blink, phoenixd, LND gRPC self-payments) suggests LNbits is building toward being backend-agnostic across the Lightning node ecosystem.
WASM extension tooling will mature next — documentation, the vetted extension repository growing, and possibly browser-based WASM development support. Phoenixd's deepening integration (node page, preimage returns, mnemonic display) hints at a tighter mobile Lightning node story ahead.
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 SolidInvoice or LNbits.
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.
Zluri ships canvas workflows and a Segregation of Duties engine, moving from SaaS management into full IGA territory.
See all SolidInvoice alternatives → · See all LNbits alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
They serve adjacent needs but don't currently overlap on shipped themes. LNbits is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 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 0.0), with 1 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 SolidInvoice alternatives in Finance are ranked by recent ship velocity. Browse the "SolidInvoice alternatives" section above for the current picks, or visit /alternatives/solidinvoice 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.