We build the software your business is missing.
Scheduling, quotes, invoicing, and billing, built around how your business already works. For when spreadsheets and store-bought apps can’t keep up.
Got a text from this number? That was me. If I don’t pick up, I’ll call you back the same day.
You’ll work with Isaac Riehm, founder · Scottsdale, Arizona
Today
- TuesdaySmith – AC?Garcia ✓
- MikeOak St wants the quote again
- Call Pine Ave back!
- invoices_v3Garcia3,860Oak St?
With DevPlus
Today’s jobs
- Smith home · AC not cooling
- Oak St. office
- Garcia remodel
- Pine Ave. rental
What we build
Pick the one that sounds like your business.
- Jobs, quotes, and schedulesFor service companies whose jobs live on a whiteboard, in texts, and in one person’s head.
- Invoicing and billingFor businesses that bill from a spreadsheet only one person understands.
- Phone messages and paperworkMissed calls, voicemail, and forms, sorted for you.
- Medical billing and practicesClaims, billing, and paperwork for practices and billing companies.
- Old websites and programsReplace the site or program nobody can update anymore.
How a job moves through your business
Every job goes through the same steps. Today each step lives somewhere different. Here is what changes with one system.
- Call comes in
- Today
- Notepad
- With one system
- Logged with name and number
- Quote
- Today
- Word document
- With one system
- Sent from the job and tracked
- Schedule
- Today
- Whiteboard
- With one system
- The crew sees it on their phone
- Do the work
- Today
- Text threads
- With one system
- Notes and photos saved on the job
- Invoice
- Today
- Spreadsheet
- With one system
- Made from the job in one step
- Get paid
- Today
- Chasing payments
- With one system
- One list of who still owes
A system I built
Claims tracked in one place instead of three
Claims used to live in provider paperwork, spreadsheets, and insurance websites. I built one system that carries each claim from the provider’s records to the insurer’s receipt to the books.
- Records come inChecked the moment they arrive
- Claim builtChecked against the insurer’s rules first
- Sent to the insurerThe insurer’s receipt is saved as proof
- Matched to the booksA report that lines up with your accounting
How working with me goes
- A phone callTell me what’s broken. About fifteen minutes.
- I look at how the work gets doneAt your office or on a shared screen. The call and this look are free.
- A fixed price, in writingYou know the number before any work starts.
- Progress you can see every weekWorking pieces, not a big reveal at the end.
- You own itThe program, your data, the accounts, and a written guide.
Who you’ll work with

I’m Isaac Riehm. I plan it, build it, and answer the phone after it launches.
- I work across the Phoenix area and will come to your office.
- I build with common tools any good developer can pick up.
- If I’m ever unavailable, you keep everything: the code, the accounts, and a written guide.
Questions owners ask
- What does it cost?
- It depends on what I build, so there is no price list. The first call and a look at how the work gets done are free. After that, you get a fixed price in writing before any work starts. Small jobs are welcome too.
- How long does it take?
- It depends on the size of the job. You get a schedule in writing along with the price, and you see working pieces every week, not one big reveal at the end.
- Will it work with QuickBooks and the programs we already use?
- That is one of the first things I check. Most programs, QuickBooks included, can take information from the system I build. If one can’t, I’ll tell you before you pay anything.
- What happens if something happens to you?
- You own everything: the program, your data, the accounts, and a written guide to how it works. It is built with common tools any good developer can pick up. You never depend on me alone.
- Will my people have to learn a complicated program?
- No. It is built around the steps your people already do, using the words they already use.