Firefly III
Firefly III's develop builds continue into October 21, still with no changelog.
Comparison · Finance
Increase vs Stigg
A side-by-side editorial comparison of Increase and Stigg — release velocity, themes, recent moves, and the top alternatives to consider.
Increase vs Stigg: at a glance
What is Increase?
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.
What is Stigg?
Stigg shows card brand and wallet type on payment methods as its billing reach widens.
Stigg's latest release shows the card brand and digital wallet behind each customer payment method. It follows credit usage grouped by feature ID, a beta Airwallex integration, the Stripe Projects listing, faster Plans and Add-ons, and sub-10ms entitlement checks in the REST SDKs.
Increase vs Stigg: editorial side-by-side
Increase
3.8FINANCE
A banking-as-a-service API that now sells compliance and blockchain rails, not just payments
◆ Current state
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.
◆ Where it's heading
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.
◆ Prediction
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.
Stigg
5.0FINANCE
Stigg shows card brand and wallet type on payment methods as its billing reach widens.
◆ Current state
Stigg's latest release shows the card brand and digital wallet behind each customer payment method. It follows credit usage grouped by feature ID, a beta Airwallex integration, the Stripe Projects listing, faster Plans and Add-ons, and sub-10ms entitlement checks in the REST SDKs.
◆ Where it's heading
Stigg is positioning itself as the monetization layer above whichever billing provider a company uses, with credit-based pricing as a central pillar. Visibility is improving on both sides: usage breakdowns for credits and now payment-method detail for billing. Distribution keeps widening through Stripe Projects and Airwallex, while contracts tooling extends it into sales-led deals.
◆ Prediction
Expect more credit-reporting and customer-detail work alongside further billing-provider integrations; the entries don't show which providers come next.
Alternatives to Increase and Stigg
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 Stigg.
Shift4
Shift4 posts Gift Card & Loyalty 26.2.1 notes in three languages ahead of an October 21 release.
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.
InvoiceShelf
InvoiceShelf 3.0 alphas let Claude, ChatGPT and Cursor draft and send invoices.
Zluri
Zluri is turning SaaS management into identity governance, and Segregation of Duties is the pivot.
See all Increase alternatives → · See all Stigg alternatives →
Recent activity from Increase and Stigg
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 3d agoStiggCard brand and digital wallet details for payment methods
- 5d agoStiggAbility to group credit usage by feature ID
- 8d agoStiggAirwallex integration (beta)
- 19d agoStiggStigg is now available on Stripe Projects
- 23d agoStiggFaster Plans & Add-ons
- 23d agoStiggWebhook event for data export sync failure
- 3mo agoIncreaseManaged compliance and blockchain transfers land in Q2 ⚡
- 6mo agoIncreaseEntity onboarding, 3D Secure and IP-restricted keys
- 9mo agoIncreaseFedNow, Push-to-Card and a Cards Disputes API
- 1y agoIncreaseEvent log filtering and check transfer work
- 1y agoIncreaseFile links, check deposit images, Apple Pay history
- 1y agoIncreaseOAuth applications, lockboxes and exports
Frequently asked questions
What is the difference between Increase and Stigg?
They serve adjacent needs but don't currently overlap on shipped themes. Stigg is currently shipping more aggressively (velocity 5.0 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.
Is Increase better than Stigg?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Stigg is currently shipping more aggressively (velocity 5.0 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.
What are the best alternatives to Increase?
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.
What are the best alternatives to Stigg?
Top Stigg alternatives in Finance are ranked by recent ship velocity. Browse the "Stigg alternatives" section above for the current picks, or visit /alternatives/stigg for the full list with editorial commentary on each.