Plain vs Guava
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Plain has the lower starting price: about $55 a month, against $149 for Guava.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Unified support queue
- GraphQL API
- Slack and Discord channels
- Built-in AI agent
- Bring-your-own agent support
- Voice agent API
- Python and TypeScript SDKs
- Telephony included
- Real-time tuning and debugging
- SOC 2, HITRUST and PCI DSS
| Feature | Plain | Guava |
|---|---|---|
| Best for | API-first support platform for B2B SaaS and developer tools | Voice agent API with SDKs, telephony and compliance built in |
| Category | Customer support | Customer support |
| Pricing model | Free trial | Freemium |
| Starting price | $55/mo | $149/mo |
| Free plan | No, 7-day trial | Yes |
| Made by | Plain | Guava |
| Based in | United Kingdom | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
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Pricing compared
Plain has the lower starting price: about $55 a month, against $149 for Guava.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Foundation
$55/mo
- Per user
- Up to 5 member seats
- 1,000 credits per month
- Slack, email and in-app channels
Horizon
$99/mo
- Per user
- Unlimited seats
- 2,500 credits per month
- Microsoft Teams, SLAs, HIPAA
Frontier
Custom
- Advanced security review
- Support and uptime SLAs
- Dedicated success manager
4 plans
Starter
Free
- 500 minutes a year
- Full API and SDK access
- Watermarked, limited concurrency
Build
$149/mo
- 1,500 minutes a year
- Custom prompts and orchestration
- Basic analytics
Scale
$499/mo
- 7,000 minutes a year
- Advanced orchestration
- Real-time debugging tools
- Light SLA
Custom
Contact sales
- Custom SLAs
- Dedicated support staff
- Volume discounts
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Plain
- Highly programmable
- Good fit for developer products
- Transparent pricing
- Less suited to B2C volume
- Smaller ecosystem
- Needs technical setup to shine
Guava
- Free tier with full API access
- Compliance certifications listed
- Agents defined in code
- Free plan is watermarked and limited
- Minutes are allotted per year
- Aimed at developers
Which one should you choose?
Choose Plain if you want:
- Highly programmable
- Good fit for developer products
- Transparent pricing
Watch out: less suited to b2c volume.
Choose Guava if you want:
- Free tier with full API access
- Compliance certifications listed
- Agents defined in code
Watch out: free plan is watermarked and limited.
Plain vs Guava FAQ
What is the difference between Plain and Guava?
Plain: API-first support platform for B2B SaaS and developer tools. Guava: Voice agent API with SDKs, telephony and compliance built in. Both are customer support tools.
Is Plain or Guava cheaper?
Plain has the lower starting price: about $55 a month, against $149 for Guava.
Do Plain and Guava have free plans?
Plain: No, 7-day trial. Guava: Yes.
Who makes Plain?
Plain is made by Plain, based in United Kingdom.
Who makes Guava?
Guava is made by Guava.
Which should I choose, Plain or Guava?
Choose Plain if you value highly programmable and good fit for developer products. Choose Guava if you value free tier with full api access and compliance certifications listed.