Audyense
Plain
Customer Support · www.plain.com
Overview
Plain is a customer support platform built for B2B teams that handle support in shared Slack channels, Microsoft Teams, Discord, email, live chat, and in-app forms, consolidating everything into one workspace. It ships an included AI agent (Ari), AI triage workflows, and a GraphQL API so engineering-adjacent teams can wire support directly into tools like Linear, Jira, GitHub, and incident.io. Founded in 2020 by ex-Deliveroo designers, it raised a $15M Series A led by Battery Ventures in February 2025.
The problem Plain solves
B2B SaaS companies increasingly do support where their customers already are — shared Slack Connect channels, Microsoft Teams, and Discord — but legacy helpdesks treat those channels as bolt-on integrations, so threads get lost and engineers are looped in through screenshots and copy-paste. Plain solves this by making business messaging channels first-class alongside email and chat in one inbox, with an included AI agent and a GraphQL API that connects support directly to Linear, Jira, and incident tooling, so technical support teams resolve issues without leaving their engineering workflow.
Decision context
Use these points to test whether the product fits your operation, not just whether it has a long feature list.
- Published starting price: $35 per seat/month. Confirm user, usage, and feature limits for the plan you would actually buy.
- Deployment: cloud. Check security, data-residency, and access requirements for every team that will use it.
- Verified integrations include Slack, Microsoft Teams, Discord, Linear, Jira, GitHub Issues. Validate sync direction and plan limits for the connections that matter.
- This record was last checked on 7/20/2026; pricing and features can change.
How to evaluate Plain
A listing helps create a shortlist; a trial with the team’s real workflow decides whether the tool fits. Use this reading with the structured facts and confirm changes with the vendor.
Workflow fit
The record describes it as a fit for B2B SaaS companies supporting customers in shared Slack Connect, Microsoft Teams, or Discord channels, Engineering-adjacent support teams that live in Linear, Jira, GitHub, and incident.io, API-first teams that want to build custom support workflows on a GraphQL API instead of fighting helpdesk rate limits. Check that this context matches the volume, roles, and processes your team needs it to support.
Pilot questions
- Can Plain complete the critical workflow without manual work outside the product?
- Do the recorded connections (Slack, Microsoft Teams, Discord, Linear) support the sync direction, permissions, and volume we need?
- What user, usage, storage, support, or security limits appear after the headline starting price?
Evidence and freshness
This record was checked on 7/20/2026. That date tells you when the record was reviewed, not that the vendor has left its terms unchanged since then.
Best for
- B2B SaaS companies supporting customers in shared Slack Connect, Microsoft Teams, or Discord channels
- Engineering-adjacent support teams that live in Linear, Jira, GitHub, and incident.io
- API-first teams that want to build custom support workflows on a GraphQL API instead of fighting helpdesk rate limits
Not a fit if
- B2C or high-volume consumer support teams needing phone/voice and social channels
- Large organizations wanting cheap occasional-collaborator seats — pricing is strictly per full seat
Why it’s listed
- Developer-focused B2B support platform with a full GraphQL API and first-class Slack/Teams/Discord channels
- Recurring pick in Zendesk-alternative comparisons for technical B2B SaaS teams
- $15M Series A (Battery Ventures, Feb 2025) with an included AI agent on every plan
Pricing
Foundation
$35 per seat/monthEntry plan for small teams with core channels and the Ari AI agent included.
- 2,000 AI credits/month
- Slack, email, and in-app channels
- Ari AI agent, Linear and Jira integrations
- Customer cards, AI workflows, Sidekick assistant
- Up to 5 user seats, unlimited viewer seats
- 1 Knowledge Base and 1 Ask AI instance
Horizon
$299 per month, billed yearly (3 seats included)Growth plan adding Microsoft Teams, SLAs, escalation paths, and advanced reporting.
- 15,000 AI credits/month
- Microsoft Teams channel support
- SLAs, business hours, and escalation paths
- Unlimited Help Center and Knowledge Bases
- CRM integrations and advanced reporting/team analytics
- AI suggested responses, priority support via Slack
Frontier
Custom pricingEnterprise plan with custom pricing, Discord channels, and advanced security.
- Everything in Horizon plus custom AI credits
- Discord channels
- SSO and SCIM, advanced security
- Custom AI + bring your own agent
- Dedicated CSM and white-glove onboarding
Features
Integrations
Security & compliance
Pros & cons
Pros
- Unifies Slack, email, Discord, and in-app support in one inbox — reviewers call it 'a great way to manage both Slack and Email support in one place'
- Deep, well-liked integrations with engineering tools (Linear, Jira, Slack), with high G2 usability and ease-of-setup scores
- Well-structured and powerful for teams handling thousands of tickets per week, with nuanced ticket bucketing
- Full GraphQL API lets teams customize workflows and embed support into their product
Cons
- Search functionality is unclear and makes finding past tickets difficult
- Seat-based pricing frustrates teams where engineers respond only occasionally but need a full seat
- High per-seat prices limit scalability for collaborative support in large teams
- Feature-dense UI can be overwhelming at first, and reviewers report reply-box scrolling glitches
What we found
Rated 4.5/5 across 20 G2 reviews: users praise the unified Slack/email/Discord inbox and engineering-tool integrations, while criticizing weak ticket search and per-seat pricing for occasional responders.
Ratings and review counts come from public review platforms. We link to the original source and keep the underlying review text out of this profile.
User reviews
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