Mainbrella vs Zentor

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Mainbrella compared with Zentor
Detail	Mainbrella	Zentor
What it does	Cloud computers for AI agents on Cloudflare	AI assistant that works inside your tools
Stage	Not given	Not given
Founded	Not given	Not given
Based in	US	Not given
Pricing model	Freemium	Paid
Pricing	Prepaid compute at $0.02 per compute-unit hour. Minimum $5 top-up with no monthly subscription. Machine rates: Lite $0.02/hour, Small $0.12/hour, Medium $0.20/hour, Large $0.32/hour, XL $0.56/hour. Open source platform available via GPLv3 license for self-hosting on Cloudflare (Workers Paid plan sta	Zentor Pro: $20/month with 1,000 credits per billing period. Optional credit packs: $10 (1,000 credits), $50 (5,000 credits), $100 (10,000 credits), $200 (20,000 credits). Eligible new users receive a 3-day trial with 1,000 credits at signup with no credit card required.
Key features	Linux workspace with command execution, file operations, and tool installation HTTP API, SSH, and browser terminal access Account-owned lifecycle controls and explicit ownership Five machine sizes from Lite to XL Saved workspaces with snapshot stop and resume Prepaid balance with no monthly subscription Shared accounts and billing infrastructure Hosted apps including Linux computers, Vibe coding, and Voice agents Custom runtime images and language support Outbound internet and ephemeral storage	Works inside Notion, Airtable, Slack, Google Workspace and email Personal memory that carries between tasks Cloud workspace with persistent files and history Visual desktop to watch AI work in real time Review and approve from your phone Built-in skills for research, images, documents, video and code Data encryption at rest
What makes it different	Open-source platform that can be self-hosted on own Cloudflare account Built-in accounts, billing, and metering so developers don't start from scratch Simple prepaid model with no monthly commitment Direct founder contact for product feedback and integration questions Account-owned HTTP workflow with automatic cleanup	Works inside your existing tools instead of in a chat window Personal memory belongs to you and is exportable Never trains on your data or prompts Same $20/month price for students, solo founders and teams Can run on a schedule or automate repeated tasks
Community votes	0	0
DR (Domain Rating by Ahrefs)	22 +1 (up) since last check	29 no change since last check
Trust Flow (Majestic)	5	6
Citation Flow (Majestic)	32	28
Referring domains (Majestic)	69	189

5 details filled in for both companies.

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