Best Spool Winding Apps & Games

225+ iOS apps & games curated and reviewed

4.2 avg rating
16 free apps & games
Updated May 2026

Every iPhone needs a few good spool winding apps and games. We benchmark 225+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Spool Winding Apps & Games (May 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Spool WindingSpool WindingFreeNoNoMay 2026
2Master Electrician Ref. LiteMaster Electrician Ref. LiteFree4.7★ (2.4K)NoNoJul 2026
3Southwire® Voltage Drop CalcSouthwire® Voltage Drop CalcFree4.6★ (1.5K)NoNoJul 2026
4QuickBend: Conduit BendingQuickBend: Conduit Bending$6.994.8★ (3.8K)NoNoJul 2026
5Southwire® Conduit Fill CalcSouthwire® Conduit Fill CalcFree4.5★ (746)NoNoJul 2026
6Delivery Route Planner - UpperDelivery Route Planner - UpperFree4.5★ (1.7K)NoYesJul 2026
7Loop by ITSLoop by ITSFree3.4★ (154)NoNoJul 2026
8Knot GuideKnot Guide$2.994.6★ (447)NoYesJul 2026

Top Picks for Spool Winding

Master Electrician Ref. Lite#2

Master Electrician Ref. Lite by PawEng, LLC

A handbook for electricians
Strong Contender
📊 Productivity
4.7(2.4K ratings)
Free
Master Electrician Ref. Lite screenshot 1
Master Electrician Ref. Lite screenshot 2
Master Electrician Ref. Lite screenshot 3
Master Electrician Ref. Lite screenshot 4

This electronic pocket reference guide provides essential information for electrical professionals. It offers calculations, code tables, and detailed sections on motors, ampacities, grounding, and more, all accessible on your mobile device.

Southwire® Voltage Drop Calc#3

Southwire® Voltage Drop Calc by Southwire Company

Southwire Calculator
Worth Considering
🔧 Utilities
4.6😐(1.5K ratings)
Free
Southwire® Voltage Drop Calc screenshot 1
Southwire® Voltage Drop Calc screenshot 2
Southwire® Voltage Drop Calc screenshot 3
Southwire® Voltage Drop Calc screenshot 4
Southwire® Voltage Drop Calc screenshot 5
Southwire® Voltage Drop Calc screenshot 6

Calculate the appropriate wire size for electrical circuits. This tool helps determine wire size based on voltage drop and current carrying capacity, ensuring compliance with NEC ampacity limits.

What We Love

  • 🚀 Quick and useful
  • 🚀 Great Quick Reference
  • 👍 A must have app for electricians
  • 👍 Love These

Room to Improve

  • 🐛 Motor starting Voltage drop
  • 🐛 Useless!
  • 🐛 Won't work

More Spool Winding apps to explore

4
QuickBend: Conduit Bending
QuickBend: Conduit Bending
QuickBend: Conduit Bending
Conduit Bending Calculator
$6.99

This app is a conduit bending calculator designed for electricians and DIY enthusiasts. It provides accurate measurements for various bend types, accounting for bender and conduit specifications. Users can input data intuitively and receive instant feedback on bend feasibility.

Accurate centerline radius algorithmSupports multiple bend types (offset, saddle, 90°, etc.)Intuitive data input (number pad, slider)
📊 Productivity
(3.8K)
paid
5
Southwire® Conduit Fill Calc
Southwire® Conduit Fill Calc
Southwire® Conduit Fill Calc
by Southwire Company
Free

This tool assists electricians, engineers, and contractors in determining the correct conduit size based on NEC guidelines. It calculates conduit fill percentages and jam probability, saving time compared to manual calculations.

Conduit size calculationNEC fill percentagesJam probability
🔧 Utilities
(746)
free
6
Delivery Route Planner - Upper
Delivery Route Planner - Upper
Delivery Route Planner - Upper
Courier, Parcel & Driver GPS
Free

Optimize multi-stop delivery routes with intelligent algorithms that consider traffic, time windows, and priorities. Import stops easily from spreadsheets or photos, and validate addresses before you go. Get accurate ETAs and proof of delivery.

Intelligent route optimizationImport stops from Excel, CSV, photosAddress validation
🗺️ Navigation
(1.7K)
free with in-app purchases
7
Loop by ITS
Loop by ITS
Loop by ITS
by ITS National, LLC
Free

This app simplifies business interactions for drivers and customers with a leading third-party logistics provider. It offers personalized supply chain solutions, including brokerage, dedicated fleets, and distribution services nationwide.

Streamlined driver and customer businessPersonalized supply chain solutionsNationwide multi-modal brokerage
💼 Business
(154)
free
8
Knot Guide
Knot Guide
Knot Guide
Essential knots for any use
$2.99

Learn to tie a wide variety of essential knots with this comprehensive guide. It provides step-by-step instructions for over 200 knots, making it a valuable resource for DIY enthusiasts, outdoor adventurers, and anyone needing to master knot-tying techniques.

Extensive knot library (202+ knots)Step-by-step instructionsSuitable for various uses
🔧 Utilities
(447)
free with in-app purchases
9
Ugly's Electrical References
Ugly's Electrical References
Ugly's Electrical References
by Informed Publishing
$12.99

This app provides electricians and electrical professionals with up-to-date digital information based on the National Electrical Code. It includes formulas, wiring diagrams, conduit bending guides, and calculators for various electrical calculations. The app is designed for on-the-job reference and works offline.

NEC 2026 updatesMathematical formulas and calculatorsConduit bending guide with videos
📊 Productivity
(1.5K)
paid
10
McMaster-Carr
McMaster-Carr
McMaster-Carr
Over 700,000 products
Free

Access a vast catalog of industrial and maintenance supplies from your mobile device. Browse and order over 800,000 products for your plant and facility needs.

Extensive product catalogOrder from mobilePlant and facility supplies
🛍️ Shopping
(214)
free
11
Conduit Bending
Conduit Bending
Conduit Bending
Electrical Conduit Bender
Free
$9.99 | 100% OFF

This app simplifies electrical conduit bending calculations with expert-designed tools. It offers advanced fractional and unit conversion capabilities, supporting a wide range of bend types for precise results. Easily switch between imperial and metric units and choose from predefined benders.

Advanced fractional calculationsImperial and metric unit conversionSupport for numerous bend types
📊 Productivity
(478)
free with in-app purchases
12
Halliburton eRedBook® Mobile
Halliburton eRedBook® Mobile
Halliburton eRedBook® Mobile
by Halliburton
Free

This app provides essential data and calculators for oil and gas well calculations. Access key dimensions, strengths, and specifications for tubulars to quickly determine volumes and capacities. Supports multiple unit systems for flexible calculations.

Instant access to pipe dimensions and strengthsQuickly calculate capacity and annulus volumesView volume measurements in Metric or Imperial units
💼 Business
(30)
free
13
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
14
Spool Programmer
Spool Programmer
Spool Programmer
RFID tag r/w for filament
Free

This app allows users to program RFID tags for 3D printing filament spools. It supports various filament types and spool sizes, offering features like reading existing tags, checking memory, and custom color selection. All processing is done on-device for privacy and security.

Write filament data to NTAG215/216 tags18 pre-configured filament profilesRead and verify existing tags
🔧 Utilities
(3)
free
15
Weldbend Field Reference App
Weldbend Field Reference App
Weldbend Field Reference App
by Weldbend Corporation
Free

Access dimensional data for carbon steel butt-weld fittings and flanges. This digital companion also provides technical and general information for carbon steel pipe systems.

Dimensional data for butt-weld fittingsDimensional data for flangesTechnical information for carbon steel pipe systems
🔍 Reference
(36)
free
16
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
17
Spoolstock - 3D Printing Hub
Spoolstock - 3D Printing Hub
Spoolstock - 3D Printing Hub
Filament and print inventory
Free

Manage your 3D printing materials and projects with this app. Track filament inventory, monitor print progress, and gain insights into your usage. Syncs across devices and offers smart tracking for remaining filament.

Filament inventory managementQR/barcode scanningIntelligent filament tracking
📊 Productivity
(82)
freemium
18
Mike Holt's Electrical Toolbox
Mike Holt's Electrical Toolbox
Mike Holt's Electrical Toolbox
Electrical Power Calculator
Free

This app provides essential calculations for electricians, inspectors, contractors, and engineers. It helps determine conductor sizing, circuit protection, race sizing, and grounding conductor sizes for various electrical equipment and services.

Conductor sizingVoltage drop limitationsCircuit protection sizing
🔧 Utilities
(197)
free
19
McCalc Fusion Calculator
McCalc Fusion Calculator
McCalc Fusion Calculator
HDPE/PP Pressure Calculator
Free

This app calculates the correct fusion pressure for HDPE and Polypropylene pipe jobs. It simplifies the process by selecting your fusion machine and entering pipe details to determine the recommended theoretical gauge pressure.

Select McElroy fusion machinesChoose from nine international standardsEnter pipe size in multiple units
💼 Business
(18)
free
20
iBend Pipe
iBend Pipe
iBend Pipe
by Francisco Alcala
$3.99
$4.99 | 20% OFF

This app simplifies conduit bending calculations for electricians and tradespeople. It offers instant, accurate results for various bend types using English or Metric measurements, with customizable bender profiles and an integrated protractor.

Calculates various conduit bendsSupports English and Metric measurementsInstant, one-screen calculations
📊 Productivity
(88)
paid

FAQ about Spool Winding

Are there free spool winding apps & games for iPhone?
Yes — 16 of the top spool winding apps & games we rank are free to download, including Spool Winding and Master Electrician Ref. Lite.
Spool Winding has no ads and has no in-app purchases, according to its App Store listing as of May 2026.
We track 225+ spool winding apps & games on the iOS App Store as of May 2026, ranked by rating, recency, and analysis of real user reviews.