Starflower Solutions

Rick Perry, Founder

Olathe, Kansas
Logo for app studio Starflower Solutions Headshot of Rick Perry founder of Starflower Solutions
From a car lot problem to a pocket calculator empire

Rick Perry didn’t set out to become the calculator app guy. He was actually a marketing grad turned Android developer, who just so happened to love solving practical problems, especially the kind that make your day go a little smoother.

Questions like, what’s my car or mortgage payment if the interest rate moves a quarter point? Is that warranty rolled into financing? Are the fees reasonable? Calculations of that sort.

So, when existing mobile apps fell short, he decided to go out and build his own, and would even stress test it against his own car loan paperwork — right down “to the penny,” in fact.

His first Android app was born from a community college course he’d taken, where the final assignment was simple: make a working mobile app using Android Studio.

When he was done, he decided to put it on Google Play and see.

He didn’t have to wait long. He advertised the free version to get discovery going, then added a premium version for folks who preferred not to see any ads (and wanted a few extra bells and whistles to go with that).

One app became several and then a portfolio consisting of a mix of both free and paid versions across a dozen use cases: mortgage payments, tipping, even farm feed protein composition calculator.

He nested all of them under one name: Starflower Solutions, a wink to his home state, Kansas, and its nickname, the “Sunflower State,” but with a twist. Rick had stumbled on the “starflower,” liked how it looked, and got a logo made. And so, a distinct brand was born.

The user base grew too; in fact, into the six figure range over the life of his flagship Car Loan Payment Calculator app.

Screenshot from Starflower Solution's car loan payment calculator app
Math that makes the open web sustainable

For Rick, ads were the on-ramp to all of this. “I needed to provide something free,” he says, describing a reality most Android developers recognize. The free tier brings in the audience.

In exchange, the audience sees relevant advertising. Anyone who prefers an ad-free experience can pay to upgrade, and to receive added functionality. The ad revenue through Google AdMob covers Rick’s costs and pays for the next release.

He’s tried both free and paid paths on the marketing side: buying ads to drive paid downloads and buying ads to drive free downloads. Promoting the free apps wins, hands down.

“The ads inside the app pay for themselves,” especially once people are using the app and it ends up saving them the hassle of doing the math themselves (not to mention, saving money at the dealership as well).

Plus, Rick is thoughtful about ad placement and design. He remembers being frustrated by disruptive banners in games years ago, and he’s vowed to avoid putting that kind of friction into his own apps since.

When users asked for a lighter, cleaner interface, he went ahead and revamped the look and feel. But the reality for every developer is “you can’t please everybody,” he laughs, “but you can make the app clear and useful.”

That sort of balance matters to Rick; he’s protective of both accessibility and usability at the end of the day.

Screenshot from Starflower Solution's farm feed protein composition calculator app
Translate the math, scale the impact

Thanks to ads, Starflower Solutions operates as a self-sustaining shop. The income has helped Rick invest for retirement and fund small joys like vacations here and there.

More importantly, they give him the breathing room to engage with users too, like the car dealership managers, for instance, who email to say they’ve unofficially adopted his calculator in their process to be more transparent with buyers. That feedback, to him, is gold.

Next up for Starflower Solutions: iOS. Rick wants the flagship calculators available to everyone. He’s also kicking the tires on translations, with Spanish as a likely pilot, potentially using AI to help in the process.

Zoom out, and Starflower is a case study in how ad-supported apps meet people where they are: in a dealership office, at the bank, having dinner, or on a farm. No matter the place, they’re free to download, clear to use.

That’s the ad-based internet on full display: helping a solo developer in Kansas solve not-so-everyday math for everyday people.

About the Publisher

Rick Perry is the founder of Starflower Solutions, an app studio based in Kansas. Rick took an Android development course at Johnson County Community College in 2013 and then launched his first app: a car loan payment calculator that was able to precisely reproduce the figures for his own car loan at the time. Since then, he’s shipped a small portfolio of calculators and keeps most of them free to use through advertising.

Headshot of Rick Perry founder of Starflower Solutions