Sequence
Sequence is filling in the enterprise checklist for its quote-to-cash billing platform.
Comparison · Finance
Invoice Ninja vs SolidInvoice
A side-by-side editorial comparison of Invoice Ninja and SolidInvoice — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:invoicing
Invoice Ninja vs SolidInvoice: at a glance
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.
What is SolidInvoice?
SolidInvoice 3.1 brings custom invoice templates and moves migrations off web requests.
SolidInvoice, the self-hosted invoicing app, shipped 3.1.0, 3.1.1 and 3.1.2 together on 29 October. 3.1.0 adds custom invoice templates and invitation expiry; 3.1.2 fixes the in-app upgrade path by running migrations at startup or as a Helm pre-upgrade job. It follows the 3.0 release in June that brought 2FA, OAuth and Meilisearch search.
Invoice Ninja vs SolidInvoice: editorial side-by-side
Invoice Ninja
5.0FINANCE
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.
SolidInvoice
5.0FINANCE
SolidInvoice 3.1 brings custom invoice templates and moves migrations off web requests.
◆ Current state
SolidInvoice, the self-hosted invoicing app, shipped 3.1.0, 3.1.1 and 3.1.2 together on 29 October. 3.1.0 adds custom invoice templates and invitation expiry; 3.1.2 fixes the in-app upgrade path by running migrations at startup or as a Helm pre-upgrade job. It follows the 3.0 release in June that brought 2FA, OAuth and Meilisearch search.
◆ Where it's heading
After 3.0's identity and platform work, 3.1 turns to customization and operations, with Helm-based deployment now a supported path. Fixes are tagged with detailed commit-level notes, some co-authored with Claude.
◆ Prediction
Expect more 3.1.x fixes around upgrades and deployment, given two fix releases shipped alongside 3.1.0.
Alternatives to Invoice Ninja and SolidInvoice
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 Invoice Ninja or SolidInvoice.
Kolleno
Kolleno's monthly updates add DSO tracking, accessibility and e-signature forms to its AR suite.
Moov
Moov's issuing and invoicing APIs fill out as platforms take over more of the payments work.
TaxDome
TaxDome's fall releases give firm owners a view of every job, and proposals a deadline.
Firefly III
Firefly III keeps shipping develop builds without changelogs; Nov 2 brings another.
Payhawk
Payhawk keeps widening ERP exports and adds travel policy checks against market rates.
See all Invoice Ninja alternatives → · See all SolidInvoice alternatives →
Recent activity from Invoice Ninja and SolidInvoice
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoInvoice Ninjav5.13.53: version bump only
- 4d agoInvoice Ninjav5.13.52: EPC QR code fixes
- 4d agoInvoice Ninjav5.13.51: OIDC auto-login, Razorpay webhooks, Braintree upgrade
- 5d agoSolidInvoiceSolidInvoice 3.1.0: custom invoice templates, invitation expiry
- 5d agoSolidInvoiceSolidInvoice 3.1.1: post-3.1.0 bug fixes
- 5d agoSolidInvoiceSolidInvoice 3.1.2 fixes the broken in-app upgrade path
- 13d agoInvoice Ninjav5.13.50: API fixes surfaced by the new apps
- 16d agoInvoice Ninjav5.13.49: Stripe 2025.basil minimum, offline payment sync
- 19d agoInvoice Ninjav5.13.48: Stripe API upgrade groundwork
- 1mo agoSolidInvoiceInvoice lines now say '1 hour' instead of '1 hours'
- 4mo agoSolidInvoiceRelease 3.0.1
- 4mo agoSolidInvoiceRelease 3.0.0 ⚡
Frequently asked questions
What is the difference between Invoice Ninja and SolidInvoice?
Both compete on the same themes — invoicing — within Finance. Invoice Ninja and SolidInvoice 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 Invoice Ninja better than SolidInvoice?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Invoice Ninja and SolidInvoice 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 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.
What are the best alternatives to SolidInvoice?
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.