DevRev vs Plain (2026)
Comparing DevRev and Plain? Both are B2B & Technical Support and Help Desk & Ticketing tools in the directory, which is why buyers put them on the same shortlist. Below is a side-by-side look at pricing and an estimated monthly bill, channels, compliance claims, and integrations, plus when each is the better fit, so you can pick on the facts rather than either vendor's own sales page.
At a glance
| Attribute |
|
 Plain
|
|---|---|---|
| What it is | AgentOS connecting support to product development, with AI agents that resolve and route issues. | API-first support platform for technical B2B teams, with AI that understands your product. |
| Pricing | Freemium · Free plan available | Paid · $45/seat/mo billed annually |
| Est. monthly cost | No published price to estimate | $450/mo $45 per seat/mo; Foundation plan, annual billing; $55 month-to-month; 7-day trial |
| Founded | 2020 | 2020 |
| Categories | B2B & Technical Support Help Desk & Ticketing | B2B & Technical Support Help Desk & Ticketing |
| Channels | ||
| Chat | ✓ | ✓ |
| ✓ | ✓ | |
| ✓ | — | |
| Slack | ✓ | — |
| Compliance (vendor-claimed) | ||
| SOC 2 | ✓ | ✓ |
| HIPAA | ✓ | — |
| GDPR | ✓ | — |
| ISO 27001 | ✓ | — |
| Data residency | Not verified | UK (AWS London) |
| Languages | Not verified | Not verified |
| What the AI can do | ||
| Takes actions | ✓ | Not verified |
| Hands off to a human | Not verified | ✓ |
| Choice of LLM | Not verified | ✓ |
| Buying | ||
| Free trial | Not verified | 7-day free trial |
| How you buy | Not verified | Self-serve signup |
| Minimum commitment | — | Billed annually |
| Company | Independent, venture-backed | Independent, venture-backed |
| Works with | Slack Jira Salesforce Notion Microsoft Teams Google Drive | Slack Microsoft Teams Discord Linear Jira PagerDuty GitHub incident.io Shortcut Rootly |
| Key features |
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| Next step |
Full listing Visit site → |
Full listing Visit site → |
Estimates assume 5,000 conversations a month, 60% handled by AI and 10 agent seats, at each vendor's published list price (the cost calculator's model); treat them as a floor, not a quote. Compliance rows are what vendors publicly claim, and “Not verified” means we have not confirmed that fact yet, not that the tool lacks it.
Choose DevRev or Plain?
Choose DevRev if
Best for: Product-led software companies that want support tickets, product parts and engineering work in one system, with AI agents that deflect and route issues and surface product insights, starting on a free tier, with SOC 2, HIPAA, GDPR and ISO 27001 coverage.
- you need WhatsApp and Slack coverage
- you need a vendor that publicly claims HIPAA, GDPR, and ISO 27001
- you want to start on a free or low-cost plan
Look elsewhere if you want a drop-in agent for an existing help desk: DevRev is a replacement platform, not an add-on, and its paid tiers are consumption-based and priced through sales. Voice is not among its verified channels.
Choose Plain if
Best for: B2B and developer-facing companies whose customers ask technical questions in shared Slack channels, Discord and email, and want an API-first help desk with an AI agent included at no per-resolution charge, from a published $45 per seat on annual billing with a 7-day trial and SOC 2 coverage.
- you prefer its particular feature set and integrations
Look elsewhere if you run consumer support at volume, need voice, or need hosting outside the UK: Plain's verified channels are chat and email and its residency is AWS London. AI usage is metered through monthly credits.
About DevRev
DevRev exists to close the gap between the people who hear about problems and the people who fix them. Founded in 2020 by Dheeraj Pandey, the co-founder and former CEO of Nutanix, and Manoj Agarwal, a former Nutanix engineering SVP, it unifies customer support and product development on one platform: tickets link directly to the product parts and engineering work they relate to, so a support conversation and the bug it uncovered live in the same system instead of being lobbed between Zendesk and Jira.
The AI story has grown ambitious. DevRev now describes its platform as "Computer," built on a knowledge graph it calls native shared memory, with Agent Studio for building AI agents, enterprise search across live data from connected apps, AirSync to mirror data in from tools like Jira, Salesforce, and Slack, and conversational analytics that answer questions in plain English. For support teams specifically, its agents deflect customer questions, triage and route issues to the right owners, and surface product insights from ticket volume. The company raised a $100.8 million Series A led by Khosla Ventures in 2024, reaching unicorn status at a $1.15 billion valuation.
Commercially it moved to freemium: a free Mini tier with one-click connectors, then consumption-based Pro and Max tiers priced through sales.
DevRev suits product-led software companies that feel the support-to-engineering handoff as daily friction, and buyers comfortable betting on an expansive platform vision rather than a narrow tool. If you want a simple help desk with a bot, this is more machine than you need; if support is upstream of your roadmap, it is a genuinely different idea.
Read the full DevRev listing → · See DevRev alternatives →
About Plain
Plain is the support platform that talks to engineers without condescension. Founded in London around 2020 by Simon Rohrbach, previously Deliveroo's design director, and Matt Vagni, it is API-first, fast, and deliberately lean, built for B2B and developer-facing companies whose customers file sharp technical questions in shared Slack channels, Discord servers, and email. Its customer list is a tour of modern developer tooling: Vercel, Cursor, Raycast, Sanity, Laravel, n8n, and Stytch, and Sanity reported a 120 percent jump in team satisfaction after switching from Zendesk.
All those channels flow into one timeline per customer, with SLAs, escalation paths, and the workflow niceties of a grown-up help desk. The AI comes as a named pair: Ari, a customer-facing agent that answers technical questions from your docs and past threads, and Sidekick, an internal assistant that helps agents draft, label, and triage. A pointed commercial choice: every plan includes Ari with no per-resolution charges, a deliberate contrast to the outcome-billing trend, though AI usage is metered through monthly credits.
Plain raised a $15 million Series A led by Battery Ventures in early 2025, about $21 million in total, and publishes its pricing: Foundation at $45 per seat per month billed annually ($55 month to month), Horizon at $99 per seat for growing teams, and a custom Frontier tier, with a 50 percent startup discount.
Choose Plain if you are an engineering-led B2B company that finds the incumbents heavy and the e-commerce tools irrelevant. It is the tasteful, technical option, and the flat AI pricing makes costs predictable in a category where the meter usually runs by the ticket.
Read the full Plain listing → · See Plain alternatives →
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