The 6 best Pylon alternatives in 2026
Short answer. The best Pylon alternatives for running B2B support in Slack are Plain (API-first, from $35/seat/month), Thena (a ticket queue from $29/user/month billed annually), and Unthread (lightweight Slack ticketing), with Zendesk and Intercom for teams that need a full helpdesk. Modem, our product, is not a support tool. It runs alongside any of them and turns the product feedback inside those Slack threads into prioritized topics and, on request, issues in Linear, Jira, or GitLab.
Pylon calls itself the agentic support platform for B2B: shared Slack and Teams channels become tickets automatically, four scoped AI agents (Assist, Background, Slack, Support) investigate and act, and channel coverage stretches through email, chat, SMS, WhatsApp, and phone. The catch that sends teams here: pricing isn't published anywhere (every plan means a sales conversation, with no self-serve trial listed), and four agent types is more platform than a small team may want to run.
The first five entries below are support platforms you'd run instead of Pylon. The last one, Modem, which we build, is not a support tool at all; it's what happens to those conversations after support handles them, and we're explicit about that below.
#shared-customer-channel
Prioritized topicsThe short version
| Tool | Model | Best for | Pricing |
|---|---|---|---|
| Plain | API-first support platform | Building a custom support workflow | From $35/seat/month, 7-day trial |
| Thena | Ticket queue with AI on every plan | A conventional queue with AI included | From $29/user/month, billed annually |
| Unthread | Slack-native ticketing | Lightweight Slack support without a platform migration | See vendor pricing |
| Zendesk + Slack | Established helpdesk, Slack front end | Teams keeping their helpdesk of record | See vendor pricing |
| Intercom | Full customer-service suite with Fin AI | Support beyond Slack: chat, email, help center | See vendor pricing |
| Modem | Not support; turns support threads into product work | The layer after whichever tool above you pick | Free plan; Startup $80/mo, Scale $250/mo; unlimited users |
1. Plain
Plain is the API-first counterpoint: Slack, Teams, Discord, and email support built on composable workflows you configure no-code or all-code, with its Ari agent and metered AI credits, published per-seat pricing from $35/seat/month, and a 7-day trial. Where Pylon gives you four pre-scoped agents, Plain gives you a base to build the workflow you actually want.
Where it fits: teams with opinions about their support workflow and an engineer willing to wire it. The three-way breakdown is in Pylon vs Plain vs Thena.
2. Thena
Thena keeps the familiar ticket-queue model, fed from Slack, email, and web chat, with AI included on the cheapest plan (detection, summaries, tagging, a co-pilot) at published pricing from $29/user/month billed annually. Less agentic autonomy than Pylon, more predictability.
Where it fits: teams that want a conventional queue with AI baseline and a known bill.
3. Unthread
Unthread is the lightweight option: Slack threads become tracked tickets with assignments, SLAs, and integrations into the tools you already run. It's a smaller footprint than Pylon by design: ticketing for Slack, not a support platform with a phone system.
Where it fits: small B2B teams whose support genuinely is Slack, wanting tracking without a migration.
4. Zendesk with the Slack integration
The incumbent answer: keep Zendesk as the system of record and bolt on its Slack integration so shared-channel messages become tickets. You keep mature routing, reporting, and a help center; you give up the Slack-native feel, since the integration forwards conversations rather than living in them.
Where it fits: teams already invested in Zendesk that need Slack as an intake, not a new platform. (If you go this route, mining those tickets for product signal is its own problem.)
5. Intercom
Intercom is the move when Slack is only part of the picture: chat, email, a help center, and the Fin AI agent resolving tickets across all of it. It's a bigger commitment than any Slack-native tool, in exchange for covering the customers who were never in your Slack to begin with.
Where it fits: B2B teams whose support has outgrown shared channels.
6. Modem, not a Pylon alternative but the layer after it
Modem doesn't run support. No queue, no SLAs, no agent resolving tickets. If you need Pylon's job done, pick from the five above.
What Modem does is catch what every support tool drops: the product signal inside those threads. A closed ticket that contained a feature request or a recurring bug is invisible to your roadmap unless someone re-reads it. Modem ingests conversations from Slack, Discord, support platforms, and email, clusters them into deduplicated topics prioritized by an AI score that weighs how many companies hit each one, can file Linear, Jira, or GitLab issues with the quotes attached when you ask, and helps you close the loop with the customer: when a linked PR merges, it tells your team who asked, and the agent can draft the follow-up for you to review. It runs alongside whichever support tool you pick, reading the same channels. Modem's pricing is public, with a Free plan ($0, 2,500 events, 30 days of history), Startup at $80/month (15,000 events), Scale at $250/month (60,000 events), unlimited users on every plan, pay-as-you-go overage under a budget cap, and custom Enterprise plans.
Where it fits: B2B teams who keep discovering that their best product feedback was buried in resolved support threads. See Modem vs Pylon for how the two relate in practice.
How to choose
Wanting Pylon's shape with published pricing points to Plain (build your workflow) or Thena (keep a queue). Wanting less platform points to Unthread; wanting more points to Intercom; already owning Zendesk points to the integration. And whichever you pick, the support-to-product pipeline is a separate decision, and that's where Modem sits.
FAQ
Is there a Pylon alternative with public pricing?
Yes. Plain publishes per-seat pricing from $35/seat/month with a 7-day trial, and Thena from $29/user/month billed annually. Pylon itself is sales-quoted with no published plans.
Does Modem replace Pylon?
No. Modem doesn't run support. It turns support conversations into prioritized, evidenced topics you can file to your issue tracker, and runs alongside Pylon, Plain, Thena, or any helpdesk.