Reliability Pro

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Content rating
Everyone
10+
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Content rating
Everyone
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About this app

Reliability Pro is a professional toolkit for reliability, quality, and maintenance engineers — putting a full suite of analysis calculators and live sensor diagnostics in your pocket.

CORE RELIABILITY TOOLS
- Weibull analysis solver for life-data and failure-rate modeling
- Availability & MTBF/MTTR calculator
- FMEA with automatic RPN scoring
- Reliability Block Diagram (RBD) builder
- Distribution identification
- Process capability (Cp/Cpk) analysis
- Linear regression
- Reliability growth modeling
- Monte Carlo reliability simulation

QUALITY & ROOT-CAUSE
- 5 Whys root-cause guide
- Failure modes reference library
- Quality standards reference

ON-DEVICE SENSOR DIAGNOSTICS
- Barometric pressure / leak-decay diagnostics
- Vibration spectrum (FFT) analyzer
- Acoustic / sound-level diagnostics
- Shock and impact measurement
All sensor readings are processed locally on your device.

WHO IT'S FOR
Reliability engineers, quality professionals, maintenance and asset-management teams, and engineering students who need fast, field-ready calculations and diagnostics.

A core set of tools is free. A subscription unlocks the full premium suite, with a free trial to start.
Updated on
Jul 19, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info and Financial info
Data is encrypted in transit
You can request that data be deleted

What’s new

New — Design for Reliability: 28 engineering design calculators across fluids, mechanical, electrical, thermal, chemical and optical, each framed by the failure mode it prevents.

Includes flow-induced failure screening: water hammer, acoustic-induced vibration, vortex shedding, two-phase slug loads and parallel flow distribution.

Also:
- Thermal and derating tools now in one place
- Discover expanded with theory and worked examples
- Clearer tool naming and assorted fixes
Content rating
Everyone
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App support

About the developer
ILLAYATHAMBI KUNADIAN
victor.kunadian@gmail.com
84 Van Cott Ct San Jose, CA 95127-2867 United States

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