Best Drill Chart Apps & Games

186+ iOS apps & games curated and reviewed

4.4 avg rating
15 free apps & games
Updated June 2026

Finding the right drill chart app can be overwhelming with so many options. We've analyzed 186+ apps and games to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for Drill Chart

iEngineer#2

iEngineer by Perfectly Simple Apps LLC

Strong Contender
🔍 Reference
4.5😊(191 ratings)
FreeIn-App Purchases
iEngineer screenshot 1
iEngineer screenshot 2
iEngineer screenshot 3
iEngineer screenshot 4
iEngineer screenshot 5

Access a vast database of screw and bolt information, including dimensions, material grades, and strength properties for both US and metric fasteners. Features a comprehensive drill chart, unit conversion, and customizable material displays.

What We Love

  • 🚀 Easy to navigate
  • 👍 Comprehensive information
  • 🔧 Useful for everyday work
  • ⚙️ Essential for engineers and machinists

Room to Improve

  • 🐛 Occasional errors in torque and tensile strength data
  • 💰 Metric information requires paid upgrade
  • 🔍 Missing some thread types like NPT and BSPP

More Drill Chart apps to explore

4
Drill Speed
Drill Speed
Drill Speed
Drill Speed Calculator
Free

Easily calculate optimal drill speeds for various drill bits and materials with an intuitive icon-based interface. This app automatically adjusts options based on your selections and remembers your progress.

Intuitive icon-based interfaceWide selection of drill bits and materialsAutomatic option adjustment
🔍 Reference
(2)
free
5
WS Drill Bits
WS Drill Bits
WS Drill Bits
by Rein Rapp
Free

This application serves machinists, designers, and manufacturing personnel with essential drill bit calculations. It features a comprehensive drill size chart with decimal equivalents, a calculator for optimal speeds and feeds across various materials, and a tool for determining drill point depth based on angle.

Drill size and decimal equivalent chartFast vertical scrolling with color-coded valuesSliding scale for quick list navigation
📚 Education
(2)
free
6
Grafio 4 - Diagram Maker
Grafio 4 - Diagram Maker
Grafio 4 - Diagram Maker
Sketch, chart & explain ideas
$9.99

Easily create diagrams, charts, and visual explanations of your ideas. This app features automatic shape recognition, a vast library of stencils, and the ability to add audio notes and images to your creations. It's designed for intuitive use by everyone, not just professionals.

Automatic shape recognitionDrag and drop stencilsEmbed images
📊 Productivity
(252)
paid
7
Drill Bit Nozzle Calculator
Drill Bit Nozzle Calculator
Drill Bit Nozzle Calculator
by NOV Inc.
Free

Calculate essential drilling parameters like bit TFA, pressure drop, and impact force using bit size, flow rate, and mud weight. Offers a reverse calculation to determine nozzle sizes for a specific total flow area and number of nozzles.

Calculate bit TFACalculate pressure dropCalculate HSI
💼 Business
(2)
free
8
Chart Builder Graph Maker
Chart Builder Graph Maker
Chart Builder Graph Maker
Pie,Bar,Line Chart
Free

Easily create professional line, bar, and pie charts. Visualize your data with intuitive tools and share your creations.

Create line chartsCreate bar chartsCreate pie charts
📊 Productivity
(92)
free with in-app purchases
9
Easy Chart
Easy Chart
Easy Chart
by Andrew Griffiths
Free

Create beautiful bar, line, pie, and sidebar charts with ease. Save your creations to photos in various sizes and customize them with multiple color schemes. An advanced pack offers additional sharing and customization options.

Bar, line, pie, sidebar chartsSave to photosOffline functionality
🔧 Utilities
(25)
free with in-app purchases
10
DrillOut Calcs
DrillOut Calcs
DrillOut Calcs
Common plug drill-out calcs
Free

This app offers essential calculations for oilfield professionals performing post-frac plug drill-outs. It provides quick and accurate tools to verify flow balance, annular velocity, sweep efficiency, and surface return timing in real time, designed for simplicity and speed.

Post-frac plug drill-out calculationsFlow balance verificationAnnular velocity calculation
🔧 Utilities
(2)
free
11
DCI DigiGuide
DCI DigiGuide
DCI DigiGuide
by Digital Control, Incorporated
Free

This app offers detailed, searchable instructions for operating and mastering specific equipment. It serves as a comprehensive digital manual, ensuring users can efficiently complete their tasks.

Step-by-step instructionsMaster equipment operationSearchable information
📊 Productivity
(12)
free
12
Drill Bit Converter
Drill Bit Converter
Drill Bit Converter
by Dohmann Engineering Services
$0.99
🔧 Utilities
(0)
13
FSWizard PRO
FSWizard PRO
FSWizard PRO
by Eldar Gerfanov
$17.99

This app calculates optimal cutting speeds and feeds for CNC milling and turning operations. It supports various materials, tools, and machining techniques like chip thinning and HSM. Includes helpful charts and calculators for machinists.

CNC milling and turning speed calculatorMaterial and tool-based cutting condition calculationChip thinning and HSM support
📊 Productivity
(23)
paid
14
Max Drilling
Max Drilling
Max Drilling
by NOV Inc.
Free

Monitor drilling operations in real-time with instant access to active and historical well data. Visualize drilling parameters, view rig reports, and communicate securely with your team from anywhere.

1-second data streamingCustomizable data visualizationTime and depth views
💼 Business
(22)
free
15
Organization Chart Management
Organization Chart Management
Organization Chart Management
project, business and contact
Free

Effortlessly create and manage organizational charts without drawing. Input data and customize elements like color, shape, and text. Supports tree structures and offers versatile export options for efficient team visualization.

Automatic chart generationNo drawing requiredCustomizable elements (color, shape, size, text)
💼 Business
(569)
free
16
Blackjack - Vegas Casino Real
Blackjack - Vegas Casino Real
Blackjack - Vegas Casino Real
Play learn train practice win!
Free

Experience authentic casino blackjack with big cards and free chips. Learn basic strategy, practice your skills, or play for fun. Configure table rules to match real casinos.

Casino-authentic gameplayPlay on Apple WatchFree chips
🎮 Games
(4.6K)
free with in-app purchases
17
Flowchart Designer 3
Flowchart Designer 3
Flowchart Designer 3
A Simple Flow Chart Maker
Free

Easily create professional flowcharts, org charts, and process diagrams with a variety of templates and styling options. Organize complex ideas with containers and smart connectors on an infinite canvas. Export your creations in PDF or PNG format.

Drag to add nodesInfinite Canvas24 attractive themes
🎨 Graphics & Design
(99)
free with in-app purchases
18
Chartistic - Charting App
Chartistic - Charting App
Chartistic - Charting App
by Zoho Corporation
Free

Easily create visually appealing and interactive charts for presentations and data visualization on your mobile device. Transform your data into compelling stories with a variety of chart types and a unique clipart-powered visualizer. Export your creations for use in documents, emails, and social media.

Interactive bar, line, and area chartsPie chartsClipart-powered data visualizer
📊 Productivity
(234)
free
19
Blackjack Trainer 101
Blackjack Trainer 101
Blackjack Trainer 101
Learn Basic Strategy
Free

This app is a practice tool designed to help users learn and master basic strategy for the card game Blackjack. It offers various training modes and customization options to improve decision-making in different scenarios. While it doesn't simulate a full game, it focuses on teaching optimal play.

Four learning modes (random, soft, pairs, custom)Customizable house rules (decks, soft 17, doubling, surrender)Skill levels for focused practice
🎮 Games
(6.1K)
free with in-app purchases
20
Dyna-Drill Power Sections
Dyna-Drill Power Sections
Dyna-Drill Power Sections
by Schlumberger Technology Corporation
Free

Explore and search detailed specifications for motor power sections, rotors, and stators. Find the ideal drilling solution by filtering based on tool size, lobes, stages, and revolutions per gallon. Save favorites and connect with experts.

Browse power section spec sheetsSearch by tool size, lobes, stages, and RPMIdentify optimal drilling solutions
📊 Productivity
(3)
free