Stigg
Stigg adds credit reservation and settlement for AI operations days after its agent SDK.
Comparison · Finance
InvoiceShelf vs Puzzle
A side-by-side editorial comparison of InvoiceShelf and Puzzle — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:accounting
InvoiceShelf vs Puzzle: at a glance
| Feature | InvoiceShelf | Puzzle |
|---|---|---|
| Sector | Finance | Finance |
| Velocity score | 6.3 | 5.0 |
| Sparks · 30d | 1 | 0 |
| Top themes | invoicing, accounting, self-hosted, e-invoicing | accounting, ai-bookkeeping, runway, release-notes-gap |
| Last editorial update | 3d ago | 5mo ago |
| Website | Visit → | — |
What is InvoiceShelf?
InvoiceShelf 3.0 alphas add bills and suppliers, moving it from invoicing into payables.
Five InvoiceShelf 3.0 alphas shipped in five days. alpha.11 added purchasing (suppliers, bills, supplier credits, payments and refunds) and patched two unauthenticated PHP remote code execution flaws in the Docker image. Later alphas added module API 1.4 with bundled dependencies, EN 16931 e-invoicing with ZUGFeRD / Factur-X hybrid PDFs, a notification bell with automatic payment reminders, and an iOS app headed for TestFlight.
What is Puzzle?
Puzzle's public changelog has gone dark while real work continues internally.
Puzzle is an AI-leaning accounting platform whose public changelog has slipped into placeholder entries marked 'internal use only.' The most recent visible feature work landed in March with built-in budgeting plus real-time cash flow, burn, and runway. The deeper history shows steady investment in historical books conversion, ML categorization, and revenue recognition during 2024-early 2025.
InvoiceShelf vs Puzzle: editorial side-by-side
InvoiceShelf
6.3FINANCE
InvoiceShelf 3.0 alphas add bills and suppliers, moving it from invoicing into payables.
◆ Current state
Five InvoiceShelf 3.0 alphas shipped in five days. alpha.11 added purchasing (suppliers, bills, supplier credits, payments and refunds) and patched two unauthenticated PHP remote code execution flaws in the Docker image. Later alphas added module API 1.4 with bundled dependencies, EN 16931 e-invoicing with ZUGFeRD / Factur-X hybrid PDFs, a notification bell with automatic payment reminders, and an iOS app headed for TestFlight.
◆ Where it's heading
3.0 is turning InvoiceShelf from an invoice generator into a small-business accounting app: payables next to receivables, EU-compliant e-invoices, a module ecosystem, and native mobile apps. The pace suggests the team is finishing features before a beta rather than stabilizing.
◆ Prediction
Expect more alphas filling in accounting pieces and modules built on API 1.4/1.5, with the iOS app appearing on TestFlight; the entries don't show a beta date.
Puzzle
5.0FINANCE
Puzzle's public changelog has gone dark while real work continues internally.
◆ Current state
Puzzle is an AI-leaning accounting platform whose public changelog has slipped into placeholder entries marked 'internal use only.' The most recent visible feature work landed in March with built-in budgeting plus real-time cash flow, burn, and runway. The deeper history shows steady investment in historical books conversion, ML categorization, and revenue recognition during 2024-early 2025.
◆ Where it's heading
The public-facing release notes have effectively gone quiet, while the underlying product clearly keeps shipping behind the curtain. The functional arc points at a CFO-grade analytics layer over the bookkeeping core: budgeting, runway, revenue recognition, and AI-driven onboarding. Whether the silence is editorial discipline or a transition to private GA remains unclear from the entries.
◆ Prediction
Expect Puzzle to either resume public release notes with a larger bundled launch, or move communication to a customer-facing in-app announcement channel. On capability, the next visible move likely deepens the budgeting and runway tooling toward scenario planning.
Alternatives to InvoiceShelf and Puzzle
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 InvoiceShelf or Puzzle.
Firefly III
Firefly III ships seven develop builds in six days, still with no changelog attached.
Shift4
Shift4 starts its Q4 venue rollout in canary while Customer Hub adds enterprise modifiers.
GOAT.tax
GOAT.tax adds Form 6765 Section G reporting for large R&D credit filers.
Kill Bill
Kill Bill keeps two release lines alive with small invoice-template changes.
Zluri
Zluri is turning SaaS management into identity governance, and Segregation of Duties is the pivot.
See all InvoiceShelf alternatives → · See all Puzzle alternatives →
Recent activity from InvoiceShelf and Puzzle
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 3d agoInvoiceShelf3.0 alpha.15: iOS app heads to TestFlight
- 5d agoInvoiceShelf3.0 alpha.14: notifications and unpaid-invoice reminders
- 5d agoInvoiceShelf3.0 alpha.13: EN 16931 e-invoices and ZUGFeRD PDFs
- 5d agoInvoiceShelf3.0 alpha.12: modules can bundle libraries and extend screens
- 7d agoInvoiceShelf3.0 alpha.11: purchasing, bills and a PHP RCE fix ⚡
- 1mo agoInvoiceShelf3.0 alpha.10: owners install official modules on managed hosts
- 6mo agoPuzzleFeatures
- 6mo agoPuzzleFeatures in GA
- 7mo agoPuzzleAccess built-in budgeting tools and real-time financials
- 1y agoPuzzleOnboarding profiling and AI-driven historical books import
- 1y agoPuzzleDaily Stripe summary entry plus bill edits and shortcuts
- 1y agoPuzzleIntroduced a summarized daily journal entry for Stripe balance activity (customer payments, Stripe payouts) for simpler reconciliation an…
Frequently asked questions
What is the difference between InvoiceShelf and Puzzle?
Both compete on the same themes — accounting — within Finance. InvoiceShelf is currently shipping more aggressively (velocity 6.3 vs 5.0), 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.
Is InvoiceShelf better than Puzzle?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. InvoiceShelf is currently shipping more aggressively (velocity 6.3 vs 5.0), 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.
What are the best alternatives to InvoiceShelf?
Top InvoiceShelf alternatives in Finance are ranked by recent ship velocity. Browse the "InvoiceShelf alternatives" section above for the current picks, or visit /alternatives/invoiceshelf for the full list with editorial commentary on each.
What are the best alternatives to Puzzle?
Top Puzzle alternatives in Finance are ranked by recent ship velocity. Browse the "Puzzle alternatives" section above for the current picks, or visit /alternatives/puzzle for the full list with editorial commentary on each.