The quick verdict
Plain fits small, developer-led B2B teams that want an API-first tool. Helply fits teams that want the same modern base with everyone who can help a customer in the inbox.
- Helply: unlimited users on plans from $49 a month, with AI work billed in credits.
- Plain: $45 to $99 per member seat billed annually, with 1,000 to 2,500 credits a month included.
- Helply adds Background Agents that flag churn, expansion and knowledge gaps without being asked.
- Helply is the best Plain alternative for teams that want its modern base without per-seat pricing or Foundation's five-member cap.
Helply vs. Plain at a glance
Plain and Helply both run Slack and email support with AI agents built in. They differ on who needs a paid seat and how AI work is billed.
| Capability | Helply | Plain |
|---|---|---|
| Core platform | AI-native customer support platform | B2B customer support platform |
| Built for | Support teams of any size, B2B or B2C | Developer-led B2B teams |
| Account context | Account + product usage + CRM | Customer cards; HubSpot, Salesforce and Attio sync on Horizon |
| AI approach | Support, Assist and Background Agents | Plain AI: Ari (customer agent) and Sidekick (internal agent) |
| AI investigation | Conversations, account, product usage, CRM, issue trackers | Thread plus help center and docs, with citations |
| Customer intelligence | Churn, expansion, feature requests, knowledge gaps | Customer cards and thread fields; reporting themes on Horizon |
| Pricing | Unlimited users, AI billed in credits | $45 per member seat on Foundation (up to 5), $99 on Horizon, billed annually. Viewer seats free. |
| AI economics | Per action: 1 for a draft, 4 for a lookup, 12 for an investigation | Ari, 100 credits per resolution. 1,000 credits a month on Foundation, 2,500 on Horizon. |
Three ways Helply goes further than Plain
Give every issue an AI teammate
Helply's Support Agent pulls the account, product usage, past tickets and your knowledge before it acts. A sync error gets a Linear issue filed; a double charge gets the refund your policy allows.

Support conversations shouldn’t disappear when they close
Helply's Background Agents read every conversation without being asked. They turn it into signals for churn, expansion, bugs, feature requests and missing knowledge.

Bring in the whole company, not five members
Plain's Foundation plan stops at five members, and every member is a paid seat. Helply has unlimited users, so Support, Success, Product and Engineering work the same conversations.

The economics
| Capability | Helply | Plain |
|---|---|---|
| Plan compared | Any plan | Horizon |
| Price per agent per month, billed annually | No per-user price | $99 per member seat |
| Five agents | Included in the plan price | $495 |
| Plan price | From $49 a month, unlimited users | Included in seat price |
| AI agent | Included on every plan. Work billed in credits: 1 for a draft, 4 for a lookup, 12 for a full investigation. | Ari, 100 credits per resolution |
| When the AI bills | Per AI action, by complexity. Never for retries, failed actions, or drafts your team rejects. | Per credit used; 2,500 credits a month included on Horizon |
| Team assistant add-on | Assist Agent included on every plan. | Sidekick, 15 to 300+ credits per task |
| Users without a paid seat | Unlimited users, every plan | Unlimited viewer seats |
An illustration: a five-person B2B team handles 1,000 conversations a month. On Plain Horizon that is $495 a month in seats, and the included credits cover about 25 Ari resolutions. On Helply, 1,000 B2B conversations use about 7,000 credits: $339 a month billed annually for the whole team.
Helply never charges per user. Plans start at $49 a month with unlimited users, and AI work is billed in credits weighted by complexity, so your bill grows with the work the AI does rather than with your headcount.
Users
Unlimited
On every plan
Plans
$49
From, per month
Trial
14 days
1,000 credits, no card
Teams that switched
“Helply forced us to run support properly. It resolves the deep technical tickets, keeps our docs honest, and remembers every fix, so the whole thing compounds. That’s the difference between support being a drag and being an asset.”
Tamas Deak, Founder & CEO · Kameleo
Results
- 79% of technical questions resolved end-to-end with root-cause investigation
- 3x faster responses; customer engagement doubled
- 30+ plain-language Skills built for recurring integration scenarios
Switching from Plain
Bring your conversations, accounts, and knowledge into Helply, reconnect your integrations, and run alongside your current setup until you are ready to transition.
- Start a 14-day free trial with 1,000 credits and no card, and run Helply alongside Plain on a slice of your queue.
- Bring your history, macros, knowledge, and customer context across.
- Cut over once AI resolution rates and workflows are where you want them.
Here is what comes with you:
- Conversations and history
- Accounts and customer records
- Knowledge and integrations
Which should you choose?
Choose Plain if:
- You want an API-first support tool your engineers can extend, and your team fits within five members.
- Your AI use stays light: Horizon's 2,500 included credits cover about 25 Ari resolutions a month.
Choose Helply if:
- You want the same modern base plus AI agents working in the background on churn, expansion and knowledge.
- You want to add people to the inbox without adding to the bill.
Frequently asked questions
Helply, for teams that want Plain's modern base without per-seat pricing. It includes unlimited users from $49 a month, with AI billed in credits.
Plain charges per member seat and caps Foundation at five members. Helply has unlimited users and adds Background Agents that work without being asked.
Plain Foundation is $45 per member a month and Horizon $99, billed annually. Foundation includes 1,000 credits a month and Horizon 2,500.
Plain has Ari for customers and Sidekick for reps. Helply pairs Support and Assist Agents with five Background Agents, plus any you build.
Helply starts at $49 a month for 500 credits, with unlimited users. A draft uses 1 credit, a lookup 4, an investigation 12.
Yes. Helply includes the inbox, ticketing, chat, help center, workflows and reporting, with AI agents built in.
Yes. Start a 14-day trial on part of your queue, compare resolution quality, then move the rest of your support across.
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