← Back to home
Comparison · Finance

Firefly III vs Invoice Ninja

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

Firefly III vs Invoice Ninja: at a glance

FeatureFirefly IIIInvoice Ninja
SectorFinanceFinance
Velocity score5.05.0
Sparks · 30d00
Top themespersonal finance, self-hosted, pre-release, open sourceinvoicing, payment-gateways, stripe-api, oidc
Last editorial update12h ago11d 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 Invoice Ninja?

Invoice Ninja adds OIDC auto-login while rebuilding its Stripe plumbing

Invoice Ninja ships v5.13 patch releases every few days. October's substance is payments and auth: Stripe moved to the 2025.basil API as a minimum with webhook upgrades, offline payment sync was finished, GoCardless, Razorpay and Braintree got fixes or upgrades, and OIDC gained auto-login and labelling. Several API fixes were found while building new mobile apps.

Read the full Invoice Ninja trajectory →

Firefly III vs Invoice Ninja: 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.

I5.0

Invoice Ninja adds OIDC auto-login while rebuilding its Stripe plumbing

◆ Current state

Invoice Ninja ships v5.13 patch releases every few days. October's substance is payments and auth: Stripe moved to the 2025.basil API as a minimum with webhook upgrades, offline payment sync was finished, GoCardless, Razorpay and Braintree got fixes or upgrades, and OIDC gained auto-login and labelling. Several API fixes were found while building new mobile apps.

◆ Where it's heading

The work points at two things: keeping the payment gateway layer current with providers' API versions, and preparing the backend for new client apps. European e-invoicing (ZUGFeRD/CII, EPC QR codes) also keeps getting attention.

◆ Prediction

Expect more API fixes tied to the new apps and further gateway updates; whether the apps themselves appear in this feed is unclear.

Alternatives to Firefly III and Invoice Ninja

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 Invoice Ninja.

See all Firefly III alternatives → · See all Invoice Ninja alternatives →

Recent activity from Firefly III and Invoice Ninja

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. 12d agoInvoice Ninjav5.13.53: version bump only
  8. 14d agoInvoice Ninjav5.13.52: EPC QR code fixes
  9. 15d agoInvoice Ninjav5.13.51: OIDC auto-login, Razorpay webhooks, Braintree upgrade
  10. 23d agoInvoice Ninjav5.13.50: API fixes surfaced by the new apps
  11. 27d agoInvoice Ninjav5.13.49: Stripe 2025.basil minimum, offline payment sync
  12. 29d agoInvoice Ninjav5.13.48: Stripe API upgrade groundwork

Frequently asked questions

What is the difference between Firefly III and Invoice Ninja?

They serve adjacent needs but don't currently overlap on shipped themes. Firefly III and Invoice Ninja are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). 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 Invoice Ninja?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Firefly III and Invoice Ninja are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). 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 Invoice Ninja?

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