Delta Chat
DeltaChat keeps shedding its email-client past to become a full messenger.
A side-by-side editorial comparison of SlickText and Salesmsg — release velocity, themes, recent moves, and the top alternatives to consider.
SlickText adds RCS, pushing past plain SMS into verified, branded business messaging.
SlickText runs a heavy SEO content engine — templates, listicles, vertical guides, awards posts — but the substantive product move is the addition of basic RCS messaging, bringing verified business identity and richer formatting to a platform built on plain SMS. Everything else in the recent feed is marketing and category positioning.
Salesmsg is turning a texting inbox into an agent platform that also answers the phone.
Salesmsg ships weekly and nearly every release now touches AI agents rather than the messaging inbox itself. In the last two months it consolidated agent creation into a single conversational builder, opened the account to external AI agents over MCP, and gave the AI calling agent escalation, live data connections, and session controls. Calling has moved from a side feature to a configured surface with routing actions, queues, and a custom IVR.
SlickText runs a heavy SEO content engine — templates, listicles, vertical guides, awards posts — but the substantive product move is the addition of basic RCS messaging, bringing verified business identity and richer formatting to a platform built on plain SMS. Everything else in the recent feed is marketing and category positioning.
The product is broadening from SMS-only toward a multi-format messaging stack where channel trust and branding matter. RCS gives SlickText a credible answer to the deliverability and impersonation problems that plain text marketing can't solve on its own, and slots it against enterprise rivals it keeps writing comparison content about.
Expect RCS to move from 'basic' to feature-complete — branded sender profiles, rich cards, and read receipts — and to become a headline differentiator in the comparison content SlickText already publishes against Attentive and EZ Texting.
Salesmsg ships weekly and nearly every release now touches AI agents rather than the messaging inbox itself. In the last two months it consolidated agent creation into a single conversational builder, opened the account to external AI agents over MCP, and gave the AI calling agent escalation, live data connections, and session controls. Calling has moved from a side feature to a configured surface with routing actions, queues, and a custom IVR.
Two lines are converging. One is agent depth — agents that book HubSpot meetings over SMS, escalate calls to humans, pull from live documents, and now get built by describing them in a sentence. The other is CRM gravity: Salesforce custom objects, HubSpot workflows, and call-outcome logging keep pulling the product deeper inside systems customers already run, which makes it harder to swap out. Credit tracking per workflow and agent signals that AI usage is becoming a metered cost customers need to see.
Expect the Unified Agent surface to absorb the calling agent next, so voice and text agents are built and managed in the same place, and expect the credit-tracking work to grow into budget limits or alerts once customers can see what agents cost.
Other Comms 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 SlickText or Salesmsg.
DeltaChat keeps shedding its email-client past to become a full messenger.
RSS.com opened a public API, then its changelog went quiet
Krisp has become a Call Center AI platform, with voice fraud defense as its newest front
Between weekly community digests, Matrix 1.19 lands encrypted history sharing and custom emoji
Notion is turning its workspace into an orchestration layer for external AI agents.
Trumpia's feed is SMS-marketing SEO, not product releases.
See all SlickText alternatives → · See all Salesmsg alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
They serve adjacent needs but don't currently overlap on shipped themes. Salesmsg is currently shipping more aggressively (velocity 6.3 vs 3.8), 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.
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Salesmsg is currently shipping more aggressively (velocity 6.3 vs 3.8), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Comms products to evaluate alongside.
Top SlickText alternatives in Comms are ranked by recent ship velocity. Browse the "SlickText alternatives" section above for the current picks, or visit /alternatives/slicktext for the full list with editorial commentary on each.
Top Salesmsg alternatives in Comms are ranked by recent ship velocity. Browse the "Salesmsg alternatives" section above for the current picks, or visit /alternatives/salesmsg for the full list with editorial commentary on each.