Best Iso 8502-4 Apps

229+ iOS apps curated and reviewed

4.4 avg rating
19 free apps
Updated June 2026

Decibel X is the household name in ISO 8502-4, but it's far from the only option. We track 229+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Top Picks for Iso 8502-4

Decibel X:dB Sound Level Meter#1

Decibel X:dB Sound Level Meter by SkyPaw Co., Limited

Frequency Spectrum Analyzer
Editor's Choice
🔧 Utilities
4.7😐(156K ratings)
FreeIn-App Purchases
Decibel X:dB Sound Level Meter screenshot 1
Decibel X:dB Sound Level Meter screenshot 2
Decibel X:dB Sound Level Meter screenshot 3
Decibel X:dB Sound Level Meter screenshot 4
Decibel X:dB Sound Level Meter screenshot 5
Decibel X:dB Sound Level Meter screenshot 6

This app transforms your device into a professional sound level meter, precisely measuring ambient noise pressure. It offers advanced features like frequency analysis, historical data management, and dosimeter functions, making it useful for various applications and entertainment.

What We Love

  • ⭐ Excellent app
  • 👍 Easy to use and understand
  • 🔍 Useful for various applications
  • 🎓 Helpful for hearing protection

Room to Improve

  • 💰 Expensive subscription model
  • 🔒 Misleading free trial
  • 📢 Intrusive ads
HVACR Check & Charge#2

HVACR Check & Charge by Copeland LP

PT Charts Superheat Subcooling
Strong Contender
🔍 Reference
4.8😊(16K ratings)
Free
HVACR Check & Charge screenshot 1
HVACR Check & Charge screenshot 2
HVACR Check & Charge screenshot 3
HVACR Check & Charge screenshot 4
HVACR Check & Charge screenshot 5
HVACR Check & Charge screenshot 6

This app provides an instant mobile refrigerant charge calculator for HVACR applications. It supports various refrigerants and allows users to calculate the correct system charge based on superheat, subcooling, or airflow, along with environmental conditions.

What We Love

  • 🚀 Convenient
  • 🚀 Great program
  • 🚀 Reliable app
  • 🚀 Easy and quick charging reference

Room to Improve

  • 🐛 Pressure settings not helpful
  • 🔒 Concerning privacy policy
  • 🐛 Restricted temperature range
Pitch Gauge#3

Pitch Gauge by Pitch Gauge LLC

Roofing & Construction
Worth Considering
💼 Business
3.8😐(261 ratings)
FreeAdsIn-App Purchases
Pitch Gauge screenshot 1
Pitch Gauge screenshot 2
Pitch Gauge screenshot 3
Pitch Gauge screenshot 4
Pitch Gauge screenshot 5
Pitch Gauge screenshot 6

This app helps roofing and construction professionals with accurate roof take-offs, measurements, and project management. It offers features like pitch finding, photo documentation, lead tracking, and report generation to streamline business operations and sales.

What We Love

  • 🚀 Accurate roof measurements and square footage calculations
  • 👍 User-friendly interface and easy to learn
  • ⭐ Excellent customer service and responsive support team
  • 🎯 Saves time on job estimates and measurements

Room to Improve

  • 🐛 Frequent app crashes and stability issues
  • ❌ Poor customer service responsiveness in recent years
  • 📉 Declining reliability over time with each update

More Iso 8502-4 apps to explore

4
EagleView
EagleView
EagleView
Accurate roof and wall reports
Free

This app provides contractors with accurate property measurements for roofs and walls. It helps generate estimates, plan jobs, and visualize proposed improvements for clients. Access property imagery, upload your own, and annotate images for detailed planning.

Property measurementsEstimate generationJob planning
💼 Business
(9.6K)
free
5
Concrete Calculator Plus
Concrete Calculator Plus
Concrete Calculator Plus
by Inch Calculator
Free

This app provides 15 calculators for estimating concrete, blocks, mortar, rebar, and gravel. It supports various shapes and units, offering material cost estimations for construction projects.

15 concrete estimation calculatorsEstimates cubic yards or bagsCalculates material costs
🔧 Utilities
(21K)
ad-supported
6
Copeland Mobile
Copeland Mobile
Copeland Mobile
by Copeland LP
Free

Access a vast database of product information for air conditioning and refrigeration systems on your mobile device. Quickly find specifications, diagrams, and diagnostic tools. Includes AI-powered assistance and a "Where To Buy" locator.

Intelligent HVACR Assistance chatbotOnline product information database accessAuto-fill model recommendations
🔍 Reference
(5.1K)
free with in-app purchases
7
Bubble Level Plus+
Bubble Level Plus+
Bubble Level Plus+
+ Angle Meter & Tilt Meter
Free

This utility app functions as a digital bubble level, angle meter, and tilt meter. It helps users align picture frames, measure slopes, and assist with home decoration. Calibration instructions are provided for accurate measurements.

Bubble level functionalityAngle measurementTilt meter
🔧 Utilities
(15K)
free with in-app purchases
8
Fieldpiece Job Link
Fieldpiece Job Link
Fieldpiece Job Link
by Fieldpiece Instruments, Inc
Free

This app connects wirelessly with compatible HVACR tools to help professionals troubleshoot, diagnose, and evaluate HVACR systems. It serves as a central hub for managing wireless tools and business solutions, linking your equipment to your jobs.

Wireless tool connectivitySystem troubleshootingDiagnostic capabilities
💼 Business
(490)
free
9
Ref Tools
Ref Tools
Ref Tools
All-in-one HVACR app
Free

This app provides HVACR technicians with essential tools and information for field service. It includes refrigerant calculators, troubleshooting guides, product finders, and access to spare parts. Listen to educational podcasts to enhance your knowledge on the go.

Refrigerant Slider for P/T calculationsSolenoid valve coil testing toolRefrigeration system troubleshooting guide
🔧 Utilities
(47)
free
10
Munters PsychroApp
Munters PsychroApp
Munters PsychroApp
by Munters Europe AB
Free

This tool provides quick and accurate psychrometric calculations for moist air properties. It offers detailed thermodynamic data, including dew point and humidity ratios, using ASHRAE equations. Supports both imperial and SI units for various applications.

Psychrometric calculationsDew point and humidity ratioImperial and SI units
📊 Productivity
(5)
free
11
608 Practice
608 Practice
608 Practice
Prepare for your Certification
$12.99

Prepare for your EPA 608 certification with hundreds of up-to-date practice questions. The app offers both a practice mode and a timed test mode with detailed review to help you identify areas needing improvement across Core, Type I, Type II, and Type III exams.

Hundreds of practice questionsUp-to-date content (2018-2020)Core, Type I, II, III exam sections
📚 Education
(113)
free
12
CE HVAC Pro+
CE HVAC Pro+
CE HVAC Pro+
HVAC Tools
Free

This app provides HVAC technicians with instant access to product information, including warranty status, inventory, and technical specifications. It offers real-time support, order tracking, and helpful calculators to streamline job management and business growth.

Real-time product availability & pricingOrder status and notificationsVideo/Text technical support
📊 Productivity
(1.5K)
free with in-app purchases
13
Ozinga Concrete Calculator
Ozinga Concrete Calculator
Ozinga Concrete Calculator
by Ozinga Ready Mix Concrete, Inc.
Free

Easily calculate concrete quantities for various projects like flatwork, footings, and walls. If within the service area, connect live with customer service for quotes and orders.

Calculate concrete for flatwork, footings, walls, columns, and caissonsAccurate project estimationsShare calculations with suppliers
🔧 Utilities
(18)
free
14
P-T Calculator
P-T Calculator
P-T Calculator
by National Refrigerants, Inc.
Free

This tool simplifies HVAC/R technician tasks by calculating pressure/temperature relationships, superheat, and subcool. It automatically adjusts for altitude and offers English/Metric units. Easily access favorite refrigerants and supplementary information.

Pressure/Temperature calculationSuperheat/Subcool calculationAutomatic altitude correction
🔍 Reference
(51)
free
15
Phoenix Psychrometric Calculator
Phoenix Psychrometric Calculator
Phoenix Psychrometric Calculator
by Therma-Stor, LLC
Free

Easily calculate psychrometric values like dew point and grains per pound by inputting temperature and humidity. It also helps determine dehumidifier performance by calculating water removal based on CFM and conditions.

Dew point calculationGrains per pound calculationDehumidifier performance calculation
📊 Productivity
(3)
free
16
GAF QuickMeasure
GAF QuickMeasure
GAF QuickMeasure
Fast & Accurate Roof Reports
Free

Generate comprehensive roof measurement reports quickly and accurately. Ideal for single-family homes with reports in under an hour, and commercial/multifamily properties within 24 hours. Reports include detailed measurements of roof area, pitch, and various components.

Fast roof reportsAccurate measurementsRoof area calculation
💼 Business
(835)
paid
17
Chemical Safety Data Sheets - ICSC
Chemical Safety Data Sheets - ICSC
Chemical Safety Data Sheets - ICSC
by ThatsMyStapler Inc.
Free

Access concise, standardized safety summaries for chemicals, ideal for workers and employers. This app provides essential health and safety information in an easy-to-review, two-page format, serving as a valuable supplement or alternative to lengthy MSDS documents.

Two-page chemical safety summariesSearchable chemical list (Name, CAS#, RTECS#)Saved history of viewed chemicals
🏥 Medical
(145)
free
18
Fit Tolerance ISO
Fit Tolerance ISO
Fit Tolerance ISO
Fits and Tolerances Calculator
Free

Calculates engineering tolerances for various mechanical components based on ISO and ANSI standards. It determines size limits, deviations, and fit types for holes and shafts, offering schematic representations of fits.

Calculates engineering tolerancesSupports ISO and ANSI standardsDetermines clearance, transition, and interference fits
🔧 Utilities
(2)
ad-supported
19
NIOSH Mobile Pocket Guide
NIOSH Mobile Pocket Guide
NIOSH Mobile Pocket Guide
Chemical Hazard Data
Free

This app provides essential industrial hygiene data for 677 chemicals, helping workers and professionals identify and manage occupational hazards. It includes exposure limits, chemical identifiers, and search functionalities for quick access to critical safety information.

677 chemical entriesSearch by name, synonym, DOT, CAS, RTECSLinks to IDLH, NIOSH, OSHA Methods
💪 Health & Fitness
(17)
free
20
HazMat Test & ERG 2024
HazMat Test & ERG 2024
HazMat Test & ERG 2024
CDL HazMat Test & Prep
Free

Prepare for your Commercial Driver's License (CDL) Hazardous Materials endorsement exam with over 110 practice questions. This app simulates the real test, offering detailed score reports and custom timer settings to help you track progress and build confidence.

110+ practice questionsRealistic test simulationDetailed score reports
📚 Education
(2K)
free with in-app purchases