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● Web Masters LLC · Conway, Arkansas

ROI SystemsSites + Software Suites

Websites your whole team runs, and software built for one trade at a time. One screen for each. Scroll down, or pick one from the list.

Book a call with HarrisonPhone, Zoom or Google Meet: you pick

One link for all three. Open it, choose a phone call, Zoom or Google Meet, then pick a time.

Email me the overviewOur sites, our software and every price, in one email

See the sites ↓See the software ↓

  • Walter
  • Kardinal App
  • Airstrike
  • KardinalEye
  • ROI Realty
  • Acreworks
  • SolarStrike
  • EsoTrade
Scroll

Pick one. It gets the whole screen.

Two sites for your team and your customers. Six apps, each built for one kind of business. Try any of the apps free for 7 days in your browser.

Sites · for your team and your customers

Walter Team SuiteTeams with more than one person$4,777/yr for the whole teamKardinal AppAny business people call, visit or reviewfrom $97/mo or $977/yr

Software · built for one trade at a time

ROI AirstrikeHome-improvement contractors$120 / 30 days · try freeKardinalEyeNon-roofing contractors$120 / 30 days · try freeROI RealtyReal estate agents & brokerages$100 / 30 days · try freeROI AcreworksFarms, gardens & nurseries$39 / 30 days · try freeROI SolarStrikeSolar installers & their sales teams$120 / 30 days · try freeEsoTradeSelf-directed traders$99 / 30 days · try free

Sites · 1 / 2Teams with more than one person

Walter Team Suite

One website for the whole team, and a page for every person on it.

  • Every person gets their own page: call, text, email, Save to Contacts, and a request that goes straight to them.
  • Change something in your admin and it's live. Add a new hire's page in minutes, retire one when someone moves on.
  • It saves four ways: an app on their phone, a web address, a QR code and an NFC tap card.

$9,777 $4,777/yr for the whole team

Get it for your teamSee a live example
Email me the full packetWhat it does, how you'd use it, your first 90 days, and pricesBook a call →

Walter is named for my grandfather, Walter Dunaway, Conway's mayor for 13 years.

Harrison's own Walter page, and the team admin

Sites · 2 / 2Any business people call, visit or review

Kardinal App

Your business on their home screen, with your name under the icon.

  • Call, text, directions and Save contact, one tap each, from their home screen.
  • A short tap-to-answer request goes straight to your phone and your email.
  • Every customer gets the same two review choices: Google, or a private note to you.

from $97/mo or $977/yr

See the plansOpen a sample
Email me the full packetWhat it does, how you'd use it, your first 90 days, and pricesBook a call →

We set it up for you, usually in a day or two, and you edit it yourself after that.

Kardinal Home Service, a labeled sample app

Software · 1 / 6Home-improvement contractors

ROI Airstrike

Measure, price, propose and track every job from one app that works offline.

  • Trace roof planes on free 1-ft USGS aerial photos, enter each plane's pitch, and the app does the math.
  • Price from your own price book, with every number traced and a scope check for common misses.
  • Send Good / Better / Best proposals the homeowner signs on screen, with the FTC 3-day notice.

$120 / 30 days · $1,200 / year one-time · no auto-renew

Try free for 7 daysin your browser, no cardBuy 30 days · $120
Email me the full packetWhat it does, how you'd use it, your first 90 days, and pricesFull product page →

Runs on Windows, Linux and Android in Chrome or Edge. Made by Harrison Holt and licensed to Web Masters LLC, which sells and supports it.

ROI Airstrike, a real screen from the app
UCA football field · 47,897 sq ft, from a laptop

Software · 2 / 6Non-roofing contractors

KardinalEye

Measure it from the laptop. Price it from your own book. Get it signed.

  • Draw the job on 1-ft USGS aerial photos and get lengths, areas and counts right away.
  • Depth, width and spacing turn them into cubic yards, tons, gallons, posts and panels.
  • Price from your own book, materials and labor, with every number traced and a scope check.

$120 / 30 days · $1,200 / year one-time · no auto-renew

Try free for 7 daysin your browser, no cardBuy 30 days · $120
Email me the full packetWhat it does, how you'd use it, your first 90 days, and pricesPick 1–12 months, up to 10% off →

Runs on Windows, Linux and Android in Chrome or Edge. Made by Harrison Holt and licensed to Web Masters LLC, which sells and supports it.

KardinalEye, a real screen from the app

Software · 3 / 6Real estate agents & brokerages

ROI Realty

Run the whole brokerage from one app that works offline.

  • One app holds leads, deals, showings, offers and listings for every agent at the business.
  • Every deal's deadlines count down on the dashboard, and closed deals show their closing date.
  • Twelve calculators turn a client's numbers into a net sheet, payment or investment picture in minutes, with every figure editable.

$100 / 30 days · $1,000 / year one-time · no auto-renew

Try free for 7 daysin your browser, no cardBuy 30 days · $100
Email me the full packetWhat it does, how you'd use it, your first 90 days, and pricesFull product page →

Runs on Windows, Linux and Android in Chrome or Edge. Made by Harrison Holt and licensed to Web Masters LLC, which sells and supports it.

ROI Realty, a real screen from the app

Software · 4 / 6Farms, gardens & nurseries

ROI Acreworks

The whole farm, garden or nursery in one file. Yours, even with no signal.

  • The Dashboard lists overdue tasks, animals in drug withdrawal, vaccines and births coming due, low stock and spray restrictions.
  • Harvests & Lot Trace links each harvest to its field, planting, seed lot, sprays and the customers who bought it.
  • Finance & Ledger records income and expenses by Schedule F line, with a 2026 Tax Center and printable reports.

$39 / 30 days · $390 / year one-time · no auto-renew

Try free for 7 daysin your browser, no cardBuy 30 days · $39
Email me the full packetWhat it does, how you'd use it, your first 90 days, and pricesFull product page →

Works in Chrome or Edge on Windows and Android, and in Safari on iPhone. Made by Harrison Holt and Nicholas Evans and licensed to Web Masters LLC, which sells and supports it.

ROI Acreworks Dashboard for a demo farm

Software · 5 / 6Solar installers & their sales teams

ROI SolarStrike

Every panel at its true size. Every kilowatt-hour counted. Every part priced.

  • Pick the real panel model and it lands on the aerial photo at its datasheet size, so you see exactly what fits on that roof face before anyone climbs a ladder.
  • Each panel's yearly kilowatt-hours come from its own watts, heat rating and first-year fade, times your sun hours and that roof face's tilt and direction, minus any tree shade.
  • Draw the conduit run on the map and every stick, strap, coupling and foot of wire is priced with your racking, inverters and labor. Power used on site and power fed to the grid are each valued at their own rate.

$120 / 30 days · $1,200 / year one-time · no auto-renew

Try free for 7 daysin your browser, no cardBuy 30 days · $120
Email me the full packetWhat it does, how you'd use it, your first 90 days, and pricesFull product page →

Works in Chrome, Edge or Firefox on Windows, Linux and Android. Made by Harrison Holt and Nicholas Evans and licensed to Web Masters LLC, which sells and supports it.

ROI SolarStrike: 48 panels placed at true size on a roof, with a priced conduit run

Software · 6 / 6Self-directed traders

EsoTrade

Pick how you trade. See every number that matters for it. Approve every order yourself.

  • One screen that loads the numbers, charts and scanners for your trading style.
  • A 50-variable lattice turned into one score, with every contribution shown.
  • Projection ranges that are graded against what printed, so you can see the track record.

$99 / 30 days · $990 / year one-time · no auto-renew

Try free for 7 daysin your browser, no cardBuy 30 days · $99
Email me the full packetWhat it does, how you'd use it, your first 90 days, and pricesFull product page →

Runs in Chrome or Edge on Windows, Mac, Linux and Android, and can be added to the home screen on iPhone and iPad. Made by Harrison Holt and licensed to Web Masters LLC, which sells and supports it. Information and education only, not investment advice; trading involves risk of loss.

EsoTrade by ROI Systems, a real screen from the app

Not sure which one fits?

Tell Harrison what you run. If none of these fit, he'll say so. Fifteen minutes on his calendar, or call or text the office.

Pick a timePhone, Zoom or Google Meet Call (501) 817-9500 Text us
Rather read first? Email me the overviewSites, software and prices, in one email

Harrison Holt · ROI Systems by Web Masters LLC · Conway, Arkansas
Who we are: arroweyesystems.com · harrison@arroweyesystems.com

Our own pages: Harrison Holt · Nick Evans · see a Walter Team Suite live

Each app's maker is named on its own screen. Web Masters LLC sells and supports them under license.
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