Independent app studio

We make mobile apps
for iOS and Android.

From science and engineering to weather, air quality, water chemistry, and personal finance, we design and maintain apps and cloud solutions for the tools professionals rely on every day.

See the apps Contact
Apps

Apps, built and
maintained in‑house.

A selection of our work, in-house and for clients. Available on the App Store and Google Play.

PE & FE Exam Prep iOS · Android

PassStamp

Practice for the NCEES PE and FE exams. Over 1,000 question engines generate new problems each time rather than repeating a fixed bank, and a separate held-out set is used for timed, CBT-style mock exams. Readiness is scored against the NCEES blueprint weighting.

  • Unlimited fresh questions, generated and never recycled
  • Timed, CBT-style mock exams for a true readiness check
  • Blueprint-weighted readiness score, not raw accuracy
  • Pay once, study offline. No subscription, no login
Download on the App Store Get it on Google Play passstamp.com
PassStamp app icon

PassStamp

PE & FE Practice
17PE & FE Exams
1,000+Question Engines
One-TimePurchase
AirScope app showing the Air Quality Score and pollutant readings
Pollen & Air Quality iOS · Android 4.6 · 103 ratings

AirScope

Air quality and pollen data for locations worldwide. Shows current and forecast AQI, daily pollen counts, five-day allergy forecasts, animated radar, and wildfire and smoke maps. Data is aggregated from tens of thousands of providers and sensor networks.

  • Real-time AQI with five-day allergy forecasts
  • Animated radar & pollution map layers
  • Wildfire & near-surface smoke tracking
  • Pollen, ozone, PM2.5, PM10 and more
Download on the App Store Get it on Google Play Visit airscope.app
Pool & Spa Chemistry iOS · Android 4.6 · 94 ratings

Pool Water Calculator

Calculates chemical dosages for balancing pool and spa water, covering more than 800 chemical and strength combinations. Records water parameters, chemical additions, and maintenance over time, and charts the history.

  • 800+ chemical & strength combinations
  • Save & track water parameters and dosing
  • Water-history graphs
  • Metric & US units · English, Spanish, French
Download on the App Store Get it on Google Play pool-water.com
Pool Water Calculator chemistry calculator on a tablet
Savings & Retirement iOS · Android

Vault

A net worth and retirement planner. Log savings, retirement, brokerage and HSA accounts in one place, then project balances one, five, or thirty years out and see how much came from deposits versus growth. A simulator tests a higher contribution or a different rate of return without touching your real numbers, and every projection can switch to today's dollars.

  • Forecasts that separate deposits from compound growth
  • Readiness scored against Fidelity's published age benchmarks
  • Social Security estimates using the actual SSA formula
  • No bank connection. Data stays on your device
Download on the App Store Get it on Google Play vaultplanner.app
Vault app icon

Vault

Savings & Retirement
30 yrForecast Horizon
4%Withdrawal Rule
FreeNo Bank Link
Lovibond PoolAssistant and the Scuba3 smart pool tester
Client Work iOS · Android

Lovibond® PoolAssistant

Built for Lovibond®. Pairs with the Scuba3™ smart tester over NFC to transfer water readings with a tap. Stores pool and spa profiles, tracks maintenance and chemical dosing, and charts water-quality trends.

  • Automatic NFC sync with the Scuba3 tester
  • Custom pool & spa profiles
  • Maintenance & chemical-dosing tracking
  • Water-quality trend charts
Download on the App Store Get it on Google Play
About

About the studio

Ingenio Productions is a small, independent studio. We build and maintain our own apps, and we take on client work.

Most of the work sits somewhere in science and engineering. Some of it ships publicly, like the apps above. The rest stays private, usually custom portals where heavy calculation runs behind a plain interface. Either way the problem tends to be the same: dense technical data that still has to be readable on a phone.

Energy & efficiency Thermo & fluid dynamics HVAC & building systems Weather & radar Environmental science Systems engineering
Contact

Get in touch

For support with any of our apps, client work, or anything else.

[email protected]