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Best Nup 207 Ecj Apps

217+ iOS apps curated and reviewed

3.7 avg rating
19 free apps
Updated May 2026

From beginner-friendly picks to power-user tools, our NUP 207 ECJ list covers 217+ iPhone apps updated through May 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for Nup 207 Ecj

AutoCAD#1

AutoCAD by Autodesk

DWG Viewer & Editor
Editor's Choice
📊 Productivity
4.4😞(6.3K ratings)
FreeIn-App Purchases
AutoCAD screenshot 1
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AutoCAD screenshot 5
AutoCAD screenshot 6

Access and edit CAD drawings on the go with this official application. It provides essential drafting and design tools for creating, updating, and sharing 2D drawings from any device. Collaborate with teams and simplify workflows by accessing files from various cloud storage services.

What We Love

  • 🚀 Intuitive and easy to learn
  • 📱 Convenient mobile solution
  • 👍 Great for site visits and field work
  • 🔍 Useful for viewing and marking up drawings

Room to Improve

  • 🐛 Crashes frequently
  • 🔒 Difficult login and account management
  • 🔍 Limited functionality compared to desktop version
Concrete Calculator Plus#2

Concrete Calculator Plus by Calc Hub, LLC

by Inch Calculator
Strong Contender
🔧 Utilities
4.8😊(21K ratings)
FreeAds
Concrete Calculator Plus screenshot 1
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Concrete Calculator Plus screenshot 6

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.

What We Love

  • 🚀 Easy to use
  • 🚀 Accurate calculations
  • 🚀 Convenient for on-the-go use
  • 🚀 Helpful for various projects

Room to Improve

  • 🔍 Limited features (no cost calculation, no 50 lb bag option)
  • 📱 Issues with display on some devices
有道翻译官-107种语言翻译#3

有道翻译官-107种语言翻译 by Beijing NetEase Youdao Computer System Co.,Ltd

离线AR拍照语音同传翻译
Worth Considering
📊 Productivity
4.5😞(1.7K ratings)
FreeAdsIn-App Purchases
有道翻译官-107种语言翻译 screenshot 1
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有道翻译官-107种语言翻译 screenshot 3
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This app offers translation for 107 languages, supporting various needs like learning, work, and travel. It features advanced neural machine translation for improved accuracy, with options for photo, voice, real-time AR, and offline translation.

What We Love

  • 🌟 Accurate translations
  • 🔍 Useful features like screen capture translation
  • 📚 Helpful for language learning

Room to Improve

  • 📢 Excessive advertisements
  • 🐛 Buggy performance, crashes and freezes
  • 🔌 Unreliable connectivity and offline mode

More Nup 207 Ecj apps to explore

4
Pipedata
Pipedata
Pipedata
Fast access to component data
Free

Access dimensional and weight data for over 70 common ASME piping components. Provides information in Metric, US Customary Units, and Inch/Fractions, with audited weights for valves, flanges, and other parts. Ensures accuracy and up-to-date information based on the latest ASME specifications.

Dimensional data for 72+ ASME piping componentsWeight information for valves and flangesSupports Metric, US Customary Units, and Inch/Fractions
📊 Productivity
(39)
free
5
橙光-超好玩的原创互动小说
橙光-超好玩的原创互动小说
橙光-超好玩的原创互动小说
by Beijing Liuqu Network Technology Co., Ltd.
Free

Engage with a vast library of interactive stories where your choices shape the narrative and lead to unique endings. Explore diverse genres from romance and fantasy to mystery and historical dramas. Become a character or even a creator within these immersive worlds.

Massive library of interactive storiesMultiple story genresBranching narratives and multiple endings
📚 Books
(381)
free with in-app purchases
6
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
7
Rig Count
Rig Count
Rig Count
by Baker Hughes Company
Free

This app provides an interactive analysis of US rotary rig counts, a key indicator for the drilling industry. It helps users understand demand for products used in hydrocarbon extraction and processing.

Interactive rig count analysisBaker Hughes US rotary rig dataBusiness barometer for drilling industry
💼 Business
(23)
free
8
天眼查—全国企业查询查公司工商征信
天眼查—全国企业查询查公司工商征信
天眼查—全国企业查询查公司工商征信
企业工商征信查询专业平台
Free
💼 Business
(113)
9
Concrete and Agg Calculator
Concrete and Agg Calculator
Concrete and Agg Calculator
by Chaney Enterprises
Free

Calculate precise amounts of concrete, aggregate, and masonry materials needed for various construction projects. Accounts for potential waste and overages to ensure you order the right quantity.

Concrete slab calculationConcrete footing calculationConcrete wall calculation
💼 Business
(37)
ad-supported
10
SuperCool Slide Rule HVAC
SuperCool Slide Rule HVAC
SuperCool Slide Rule HVAC
by Designstein, llc
Free

This app offers a comprehensive suite of tools for HVAC technicians. It provides interactive guides, step-by-step repair instructions, and calculators for various HVAC calculations including superheat, subcooling, and duct sizing.

Superheat & Subcooling chargingDuct sizing & layout calculatorCompressor windings troubleshooter
🔧 Utilities
(185)
free
11
Figure calculator ShapeInfo
Figure calculator ShapeInfo
Figure calculator ShapeInfo
Geometric shape calculator
Free

Easily calculate lengths, angles, and areas of various geometric shapes. Input known values and instantly get precise results for a wide range of 2D and 3D figures. Ideal for students and engineers needing quick geometric computations.

Calculate lengths, angles, and areaSupports 2D shapes (triangle, circle, ellipse)Supports 3D shapes (pyramid, prism, cone, cylinder, sphere)
📊 Productivity
(134)
ad-supported
12
ECHO Smart Control
ECHO Smart Control
ECHO Smart Control
by CURT Manufacturing, LLC
Free

Control and monitor your trailer brakes directly from your smartphone. Adjust braking power, sensitivity, and receive diagnostic alerts. Offers manual override for enhanced safety and stores personalized settings for multiple vehicles.

Adjust maximum braking powerAdjust braking sensitivityMonitor diagnostic information
✈️ Travel
(113)
free
13
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
14
SKF Bearing Assist
SKF Bearing Assist
SKF Bearing Assist
Assistance at your fingertips
Free

This app guides users through bearing mounting with step-by-step instructions and visual aids. It allows for searching bearings by various criteria, tracking mounting history, and collaborating with maintenance teams. Users can also document procedures with checklists, notes, and photos, generating shareable PDF reports.

Step-by-step mounting instructionsBearing search by designation, dimensions, or typeMounting history tracking
🔧 Utilities
(7)
ad-supported
15
Bell & Gossett - SystemSyzer
Bell & Gossett - SystemSyzer
Bell & Gossett - SystemSyzer
by Xylem Inc.
Free

This HVAC tool aids in piping system design, offering calculators for friction loss, velocity, and heat load. It includes a Cv tool and a specialized calculator for balancing contractors to determine valve settings and flow rates.

Friction loss and velocity calculatorHeat/cooling load calculationCv tool
🔍 Reference
(7)
free
16
SSC Spring Engineering
SSC Spring Engineering
SSC Spring Engineering
Spring engineering calculator
Free

This utility app assists with spring engineering calculations, including conversions, new designs, and comparisons. It helps determine spring and drum specifications for various applications, such as rolling steel doors, and calculates lifting capacities.

Spring conversionNew spring engineeringDrum specification comparison
🔧 Utilities
(26)
free
17
Crane & Rigger
Crane & Rigger
Crane & Rigger
by Luke LeBlanc
Free

Access capacity charts for hundreds of rigging items and calculate load formulas with ease. Browse a vast database of crane models and use mat calculators to simplify crane matting. Eliminate the need for physical manuals and reference materials.

Capacity charts for rigging itemsSling and load calculatorsCrane load chart database
🔧 Utilities
(12)
freemium
18
The Phillips Machinist
The Phillips Machinist
The Phillips Machinist
by Phillips Corporation
Free

Access essential machine codes, calculators, and practical resources for machinists. Get direct support from engineers and explore a library of machining information. Enhance your productivity and problem-solving on the shop floor.

Haas G & M reference codesError and Alarm CodesCalculator library (Inch/Metric)
📊 Productivity
(394)
free with in-app purchases
19
Pipe Fitter Calculator
Pipe Fitter Calculator
Pipe Fitter Calculator
by Kevin Morneault
$4.99

This app provides a comprehensive suite of tools for pipe fitting calculations, including offsets, angles, and fitting data. It supports various pipe standards and measurement units, helping users determine precise cut lengths and angles for fabrication.

Multiple pipe offset calculation optionsReducing tee offset calculationsOdd angle fitting calculations
📊 Productivity
(28)
free
20
Ariel Quick Size
Ariel Quick Size
Ariel Quick Size
by Ariel Corporation
Free

This utility app helps users estimate compressor configurations based on input pressures and flow requirements. It calculates needed horsepower or flow, suggests frame and cylinder configurations, and estimates stages, bore sizes, and discharge temperatures. Results can be emailed for further review.

Horsepower or gas flow estimateCompressor frame and cylinder configurationEstimate required stages and bore sizes
🔧 Utilities
(1)
free