Buttondown
Buttondown ships daily micro-releases with steady UX polish and an imports API improvement
Comparison · Mkt Auto
Kit (formerly ConvertKit) vs Nutshell
A side-by-side editorial comparison of Kit (formerly ConvertKit) and Nutshell — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:email-marketing
Kit (formerly ConvertKit) vs Nutshell: at a glance
What is Kit (formerly ConvertKit)?
Kit handed page-building to an agent, then went back to cleaning up the subscribers list
The Kit MCP crossing from reading a creator's list to building and editing landing pages remains the defining recent release. Since then the work has been ordinary interface repair on the subscriber surface: the Subscribers page was reorganised around search and filtering, and bulk actions became a floating menu that follows the scroll instead of sitting at the top of the list. Creator Network connection requests and custom favicons round out the window.
What is Nutshell?
Nutshell is shipping full-stack CRM depth—behavioral email sequences, quota management, and QuickBooks integration—at an unusually fast pace.
Nutshell has been shipping multiple significant features per week through August 2026: behavioral email sequences (Smart Sequences that branch based on recipient action), per-user quota management, real calendar invitation sending with video conferencing links, improved QuickBooks integration, RingCentral SMS sync, and numeric custom fields that actually sort and filter correctly. This is not a cadence of maintenance; it's a product team executing a defined roadmap with real shipping velocity.
Kit (formerly ConvertKit) vs Nutshell: editorial side-by-side
Kit (formerly ConvertKit)
6.3MKT AUTO
Kit handed page-building to an agent, then went back to cleaning up the subscribers list
◆ Current state
The Kit MCP crossing from reading a creator's list to building and editing landing pages remains the defining recent release. Since then the work has been ordinary interface repair on the subscriber surface: the Subscribers page was reorganised around search and filtering, and bulk actions became a floating menu that follows the scroll instead of sitting at the top of the list. Creator Network connection requests and custom favicons round out the window.
◆ Where it's heading
The Kit MCP is the axis, and it has already made its jump — from read-and-analyze in May to producing the published artifact in July. What follows is consolidation: the manual surfaces are being tidied so the things an agent can do and the things a creator does by hand sit on comparable footing. Nothing in this window extends the MCP itself, which makes the current period a pause rather than a redirection.
◆ Prediction
Expect the MCP surface to extend to more of the artifacts Kit publishes now that landing pages have proven the pattern. The subscriber-page work reads as a finished cleanup rather than the start of a larger rebuild.
Nutshell
2.5CRMMKT AUTO
Nutshell is shipping full-stack CRM depth—behavioral email sequences, quota management, and QuickBooks integration—at an unusually fast pace.
◆ Current state
Nutshell has been shipping multiple significant features per week through August 2026: behavioral email sequences (Smart Sequences that branch based on recipient action), per-user quota management, real calendar invitation sending with video conferencing links, improved QuickBooks integration, RingCentral SMS sync, and numeric custom fields that actually sort and filter correctly. This is not a cadence of maintenance; it's a product team executing a defined roadmap with real shipping velocity.
◆ Where it's heading
Nutshell is filling gaps that typically require separate point solutions: behavioral email marketing automation (Smart Sequences), finance reconciliation (QuickBooks, revenue installments), and channel coverage (SMS via RingCentral). The through-line is a CRM that can run more of the sales operation without third-party add-ons. If this pace holds, the product will have substantially expanded its surface area within two quarters.
◆ Prediction
The Smart Sequences work suggests Nutshell is targeting mid-market sales teams who currently stitch together CRM, email automation, and finance tools. An AI-powered features layer (deal scoring, sequence recommendations) seems like a near-term addition given where the rest of the CRM market has moved.
Kit (formerly ConvertKit) alternatives
Other Mkt Auto products tracked by Sparkpulse, ranked by recent ship velocity. Tap any card for the full editorial trajectory or compare directly with Kit (formerly ConvertKit).
n8n
n8n 2.41.x makes Agents the default and ships AI-driven node execution
Gumloop
Gumloop launched automatic model routing, a proactive self-improving agent (Gumball), and voice calling in six weeks of dense shipping.
Moosend
Moosend's changelog shows only blog content—no product feature releases visible this period
Pimcore
Pimcore 2026.2.x is patching its storage subsystem weekly — the async move queue keeps surfacing edge cases.
Formidable Forms
Formidable Forms patches Stripe's deprecated payment API, adds abandonment analytics, and extends conversational forms with draft support.
Nutshell alternatives
Other Mkt Auto products tracked by Sparkpulse, ranked by recent ship velocity. Tap any card for the full editorial trajectory or compare directly with Nutshell.
GroupOffice
GroupOffice ships 7 builds across three version tracks in five weeks — no changelogs disclosed
Streak
Streak doubles down on LLM-native CRM with Claude connector and expanded MCP write capabilities.
NetHunt CRM
NetHunt CRM ships workflow, integration, and automation depth as it builds toward a more self-contained sales OS.
Folk
folk CRM adds EU data residency and tasks in an active shipping month
Twenty
Twenty is patching v2.42 after a dense v2.41 that shipped a desktop app, app-owned messaging, and a public Agent Skills catalog.
Twenty
Twenty's 2.42 patch cycle exposes the friction of rapid open-source enterprise iteration.
Recent activity from Kit (formerly ConvertKit) and Nutshell
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 28d agoNutshellSync RingCentral SMS to Nutshell
- 1mo agoNutshellUpdated Quickbooks Online Integration
- 1mo agoNutshellEmail Marketing Smart Sequences ⚡
- 1mo agoNutshellSchedule Meetings in Nutshell and Invite Everyone
- 1mo agoNutshellTake Full Control of Sales Quotas With Nutshell’s New Per-User Quota Management
- 1mo agoNutshellNumeric Custom Fields Should Work Like Numbers
- 1mo agoKit (formerly ConvertKit)Subscribers page: New navigation and search
- 1mo agoKit (formerly ConvertKit)Subscriber bulk actions, always in reach
- 1mo agoKit (formerly ConvertKit)Build and edit landing pages with the Kit MCP ⚡
- 2mo agoKit (formerly ConvertKit)Request to connect with other creators in the Creator Network
- 2mo agoKit (formerly ConvertKit)Your favicon, your brand
- 2mo agoKit (formerly ConvertKit)Try the new Kit navigation
Frequently asked questions
What is the difference between Kit (formerly ConvertKit) and Nutshell?
Both compete on the same themes — email-marketing — within Mkt Auto. Kit (formerly ConvertKit) is currently shipping more aggressively (velocity 6.3 vs 2.5), 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 Kit (formerly ConvertKit) better than Nutshell?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Kit (formerly ConvertKit) is currently shipping more aggressively (velocity 6.3 vs 2.5), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Mkt Auto products to evaluate alongside.
What are the best alternatives to Kit (formerly ConvertKit)?
Top Kit (formerly ConvertKit) alternatives in Mkt Auto are ranked by recent ship velocity. Browse the "Kit (formerly ConvertKit) alternatives" section above for the current picks, or visit /alternatives/convertkit for the full list with editorial commentary on each.
What are the best alternatives to Nutshell?
Top Nutshell alternatives in Mkt Auto are ranked by recent ship velocity. Browse the "Nutshell alternatives" section above for the current picks, or visit /alternatives/nutshell-crm for the full list with editorial commentary on each.