Software · free 7-day demo
ROI Airstrike
Measure, price, propose and track every job from one app that works offline.
From $120 / 30 days · one payment, no auto-renew
Start the free 7-day demo See inside → Get the full packet →ROI Systems · Conway, Arkansas
Sites + Software Suites.
Software for roofers, contractors and real estate teams, each with a 7-day demo in your browser. And a Walter Team Suite for any team: a page for every person, from title offices and insurance agencies to law firms, dealerships and small businesses.
7-day demos, no card · Built and supported in Conway, Arkansas
Find your trade
Your software, your website, and who you already work with.
Pick your trade. You'll see the system built for it, the team website that goes with it, and the trades on the other side of your deals.
Software · free 7-day demo
KardinalEye
If you measure it in feet, you can price it here: fences, concrete, paving, landscaping, pools and every other trade except roofing.
From $120 / 30 days · one payment, no auto-renew
Start the free 7-day demo See inside → Get the full packet →
Website · Walter team site
A page for every crew leadRequest quiz, call and text, save the contact. See my example →Works hand in hand with
InsuranceStorm claims become roofing jobs. Real estateRoof work that has to be done before a closing.
Software · free 7-day demo
ROI Realty
Run the whole brokerage from one app that works offline.
From $100 / 30 days · one payment, no auto-renew
Start the free 7-day demo See inside → Get the full packet →
Website · Prime Real Estate
An app plus a page for every agentEach agent's leads go to their own cell. Open the live demo →
Website · Walter team site
A page for every closerAgents and lenders save your closer, not a switchboard. Ask about the title template →Works hand in hand with
Real estateThe agents who send you every file. LawClosing attorneys and curative work.
Website · Walter team site
A page for every attorneyPractice-area quiz, book a consult, send documents. See my example →Works hand in hand with
Title & closingClosings and curative title work. Real estateContracts, disputes and estates.System · live with dealers today
The dealer sales system
A page for every salesperson, tap cards, the team roster you run yourself, and the review loop, as one system.
Book a 15-minute call
Website · Walter team site
Vehicle request, trade-in, financingSee my example →Works hand in hand with
InsuranceEvery car sold needs a policy.Software · coming · not for sale yet
GridSpan
Utility operations for municipal, co-op and multi-service utilities, made generic from a system built for a public power utility. It isn't offered for sale yet.
Backed by the ASBTDCArkansas Small Business Technology & Development Center
Built in ConwayOne shop builds it, runs it and answers the phone
A demo you can touchNot a mock-up. Tap call, text, review.
No invented numbersNo fake reviews, counters or countdowns. Ever.
Team sites · The Walter system
A page for every person. One admin that runs them all.
Named for Walter Dunaway, who served as mayor of Conway, Arkansas, for 13 years and knew his people by name. Built beside the website you already have, hosted and kept up for you.
The Walter system
One team page, and a page for every person on your team, with an owner admin that controls every one of them.
- Each person's page: direct line, save to contacts, directions, reviews, share and QR, photos and files.
- Requests land on that person's own phone, typed out. We keep none of it.
- Your admin adds people, changes their phone and email, retires them, and sends push news to your customers.
$9,777 $4,777/year
Prime Real Estate
The full team edition: an app plus a page for every person, and an owner admin.
- Each team member's leads go to their own cell and email.
- You change services, hours, team and colors yourself.
- Hosting and security handled for you.
One person, five trades: see my example pages.
Example pages built on my own name, using the same templates your team would get. Each firm is a Kardinal demo business, labeled on the page. Tap any one.
Watch · the full overview · sound on
Your customers want their person.
- One team page, and a page for every person on it.
- Saved to the customer's phone in one tap.
- Requests land on that person's phone, typed out. We keep none of it.
- One sign-in runs it all: add someone, retire someone, your customers stay.
$9,777 $4,777/year · See the team site
See it for your trade · about 2 minutes each
Watch the Walter system run your kind of team.
Software by ROI Systems
Software · try any of them free for 7 days
Runs in Chrome or Edge on Windows, Linux or Android; on a phone, start the demo and we email you the link for your computer. ROI Airstrike, KardinalEye, ROI Realty and EsoTrade are made by Harrison Holt and licensed to Web Masters LLC. ROI Acreworks and ROI SolarStrike are made by Harrison Holt and Nicholas Evans and licensed to Web Masters LLC.
Roofing & home-improvement contractors
ROI Airstrike
Measure, price, propose and track every job from one app that works offline.
From $120 / 30 days · one payment, no auto-renew
Start the free 7-day demo See inside → Get the full packet →
Every trade except roofing
KardinalEye
If you measure it in feet, you can price it here: fences, concrete, paving, landscaping, pools and every other trade except roofing.
From $120 / 30 days · one payment, no auto-renew
Start the free 7-day demo See inside → Get the full packet →
Real estate agents & brokerages
ROI Realty
Run the whole brokerage from one app that works offline.
From $100 / 30 days · one payment, no auto-renew
Start the free 7-day demo See inside → Get the full packet →
Farms, gardens & nurseries
ROI Acreworks
The whole farm, garden or nursery in one file. Yours, even with no signal.
From $39 / 30 days · one payment, no auto-renew
Start the free 7-day demo See inside → Get the full packet →
Solar installers & their sales teams
ROI SolarStrike
Every panel placed at its true size, its kilowatt-hours worked out from its own specs and your roof's tilt and direction, and every part you draw priced. Then it shows what's used on site and what's fed to the grid.
From $120 / 30 days · one payment, no auto-renew · savings are shown as estimates
Start the free 7-day demo See the math → Get the full packet →
Stock, crypto, options & futures traders
EsoTrade
Fifty market numbers on one screen, weighted for how you trade, with every order approved by you.
From $99 / 30 days · one payment, no auto-renew · information and education only, not investment advice; trading involves risk of loss
Start the free 7-day demo See inside → Get the full packet →GridSpan
Utility operations for municipal, co-op and multi-service utilities.
- Made generic from a system built for a public power utility.
- Not offered for sale yet. Run a utility? Ask us about it.
7-day demos
Pick your software. Your demo link arrives by email in a minute.
Request received.
Harrison will email your private 7-day demo links. Each one opens in your browser with a sample company.
Picture next Monday. A customer saves you to their phone in one tap. A new lead texts your top agent directly. A roof is measured before your truck leaves the driveway. Nobody had to call a developer.
How the Kardinal Offer works
Three steps. You approve every one.
- 1
We build from your Google listing
Your name, hours, phone and address come straight from Google, so they always match.
- 2
You open a private preview
A link only you have. Tap everything. Ask for changes.
- 3
It goes live when you say so
Then you run it from your phone: team, services, colors, hours.
Could you get this somewhere else?
You could piece it together. Here's what that usually looks like.
| Pieced together | The Kardinal Offer | |
|---|---|---|
| Website + app + review tool | Separate vendors, separate logins | One build, one admin |
| Your business facts | Typed in by hand, drift out of date | Pulled from your Google listing |
| Team member pages | Usually extra, if offered | One per person, leads to their own phone |
| Reviews | Some tools filter unhappy customers (Google forbids it) | Everyone gets the same two choices |
| Hosting & security | Your problem | Handled for you |
| Try before you buy | A sales call first | A 7-day demo of every system |
| Roof measurements | A fee for every report | No per-report fees (ROI Airstrike) |
| Who answers the phone | A ticket queue | The people who built it, in Conway |
Who you'll talk to
Harrison Holt, Co-founder
I build these systems with a business partner, right here in Conway. When you call, you get me, not a call center.
Get started
Tell us where you want to win. We'll take it from there.
Takes about 30 seconds. Prefer to talk? Book 15 minutes or call (501) 817-9500.
Got it. Harrison has your note.
Want it in front of him right this second? Send it straight from your phone too: