Stacks

Stacks

Vantage Technologies, LLC
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About

Koira is field service management software for solo trade contractors and small home-service businesses. It combines a customer-facing website and online job booking with business-phone answering and follow-up for missed calls. Contractors can send good-better-best estimates for customer approval and collect deposits, then issue invoices and accept payments, including QR-code payments at the job site. Koira also supports customer review requests and neighborhood postcard marketing. The product brings lead response, scheduling, estimates, payments and post-job follow-up into a single workflow for trades such as plumbing, HVAC, electrical, roofing, cleaning and landscaping. Plans are priced per business rather than per user.

About

Stacks is a hosted CRM and business workspace that brings customer records, sales pipelines, follow-up tasks, email campaigns, review requests, invoicing, appointment booking, support tickets and time tracking into one service. Shared customer records and activity history help solo operators, freelancers and small teams manage leads, sales, billing, bookings and customer support together. Users can maintain contacts and deals, create marketing emails, request feedback, issue estimates and invoices, publish availability, manage tickets, and track tasks and billable time. The core plan includes all seven modules for $0 per month with unlimited users and contacts. Free includes 50 one-time AI credits; an optional paid plan extends AI access. Businesses can connect their own Stripe account for payments and supported email providers for delivery. A REST API and MCP endpoint allow scoped access for software integrations.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Solo trade contractors and home service shops of 2 to 15 people: roofing, plumbing, HVAC, electrical, painting, lawn and landscape, cleaning, pressure washing, pest control, pool service, remodeling and handyman businesses.

Audience

Solo operators and small teams who want customers, sales, billing and bookings in one place, with room for their team and AI agents.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$0/month
Office is free. Grow is $249 per month plus usage at cost; Front Office is $499 per month with usage included. Plans have no per-person fee. U.S. card payments incur Stripe's 2.9% + $0.30 processing fee plus Koira's plan-dependent fee: 2% on Office, 1% on Grow, or 0.5% on Front Office.
Free Version Supported
Free Trial Not Supported

Pricing

$0/month
The Free plan costs $0 per month and includes all seven modules, unlimited users and contacts, and 50 one-time AI credits.
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Koira
Founded: 2026
United States
www.koira.ai

Company Information

Vantage Technologies, LLC
Founded: 2026
stackscrm.com

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Intervals

Intervals

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Categories

Categories

CRM Supported

Integrations

Stripe Supported
Brevo Not Supported
Model Context Protocol (MCP) Not Supported
QuickBooks Online Supported
Resend Not Supported
SendGrid Not Supported

Integrations

Stripe Supported
Brevo Supported
Model Context Protocol (MCP) Supported
QuickBooks Online Not Supported
Resend Supported
SendGrid Supported
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