OIO alternatives

Tools that do what OIO does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from OIO.

Read 2026-10-27 · OIO itself: Free plan · From $19/mo

With a free plan or free to use: KudosCRM, The AI Workspace for People & Agents, Proveify, Salesforce, DealInSec, tab.

10 alternativesUnlike OIO

#1
Agency Handy Finance MCP · sign-in
Manages client intake, projects, invoices and recurring payments for agencies, with a branded client portal and productized service listings.
Costs moreAlso: Workflow automation
8.9k
Active
From $29/mo
#2
KudosCRM Sales
CRM that tracks client relationships across sales, delivery, billing and support on a single record.
Also: Workflow automationMore widely used
12
Active
From $9/user/mo
#3
Flusia Sales MCP · sign-in
Tracks sales leads, builds quotes from a price list, answers WhatsApp chats and links invoicing and projects inside one CRM.
Also: Workflow automation, Analytics
4
Active
From ≈ $55/mo
#4
The AI Workspace for People & Agents Sales MCP · sign-in
Boards for tracking projects, tasks and deals, where agents triage tickets, flag schedule risks and screen candidates alongside staff.
Also: Agents, Workflow automationMore widely used
633k
Active
From $9/user/mo
2012
#5
Avalara Sales MCP · sign-in
Calculates sales tax, VAT and excise at checkout or invoicing, files returns, manages exemption certificates and classifies products for tariffs.
Costs moreAlso: Chat assistant, Data extraction
2.6M
Active
From $69/mo
#6
Proveify Sales
Collects client feedback, transforms it into polished testimonials, and embeds them on websites.
More widely used
23 linking domains
Maintained
From $19/mo
#7
Salesforce Sales
Hosts a CRM that stores accounts, contacts, leads and opportunities, with add-on clouds for customer service cases, marketing campaigns and commerce.
Also: AgentsMore widely used
6.7M
Active
1999
#8
DealInSec Sales
Finds prospects, generates quotes and signing links from won deals, and tracks invoice payments for small B2B service firms.
More widely used
20
Active
From ≈ $2.09/mo
#9
tab Sales MCP · sign-in
Tracks billable hours per client, builds a shareable work log, and turns approved time into a Stripe-paid invoice.
Same job
1
Active
Free plan
#10
Workspace369 Support MCP · sign-in
Combines client records, proposals, project boards, shared inboxes, invoicing and payment collection for service businesses.
Costs moreAlso: Workflow automation
118
Active
From $29/mo
2023

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How this list is made: the words OIO is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.