DualSpark

Focused apps that do one thing really well. Built by two founders who care about craft, privacy, and software that lasts.

See our apps Get support

Made with care

Every app is designed and built by the two of us, with attention to the small details that make software a pleasure to use.

Privacy first

No ad trackers and no selling your data. We collect only what an app needs to work. Read our policy.

Here for the long run

We keep improving our apps over time and we answer every support message ourselves.

Our Apps

I
live

Idea Rubric

Know which ideas are worth building

Describe your idea, get a multi-dimensional AI evaluation in seconds. Compare scores, rank your best concepts, and stop guessing which one to build next.

Web credits
Learn more →
E
live

Expressify

Know what you're nodding to

Expressify helps you unlock the meaning behind everyday idioms and proverbs from around the world.

iOS freemium
Learn more →
V
live

Vivytal

Your health data. AI-powered plans.

Track your real health metrics — blood pressure, cholesterol, A1C, BMI — and get personalized nutrition and exercise plans tailored to your actual numbers.

Web subscription
Learn more →