# techSampler > Free educational apps with source code for STEM projects and programming. (iPhone/iPad app by Byte Works, Inc..) - Source: https://appshunter.io/ios/app/techsampler/id626214040 (this page in markdown: same URL + `.md`) - Developer: [Byte Works, Inc.](https://appshunter.io/developer/286319447) - Category: Education, Productivity - Price: Free with in-app purchases - Rating: 3.00/5 from 2 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 7.0 · 38 MB - Languages: American English - Released: 2013-08-12 - Data updated: 2026-06-25 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/techsampler/id626214040/reviews.md ## What is techSampler? Dozens of FREE Stand-Alone Apps with Complete Source Code for accessing Sensors, Electronics, Science, Math and Graphics from the iPhone and iPad, and is also the Companion App for the new O’Reilly Book “Building iPhone & iPad Electronics Projects.” VIDEO – BUILDING IPHONE & IPAD ELECTRONICS PROJECTS See https://www.youtube.com/watch?v=wn_VqZMfoMY VIDEO -- CLASSROOM LEARNING See http://www.byteworks.us/Byte_Works/Classroom.html QUICK START GUIDES FOR THE IPHONE AND IPAD See http://www.byteworks.us/Byte_Works/Documentation.html SAMPLE APPS techBASIC Sampler Includes Apps Written in techBASIC for ◆ Electronics projects ◆ Data collection ◆ Creating interactive graphics ◆ Cool programming controls ◆ Connecting to the latest sensor technology ◆ Using Bluetooth low energy and Arduino O’REILLY BOOK -- BUILDING IPHONE & IPAD ELECTRONICS PROJECTS Real World Arduino, Sensor and Bluetooth LE Apps with techBASIC. techBASIC Sampler is the companion app to this new book and includes ◆ Executable versions of each project ◆ Complete source code Check out the Early Release of the Ebook at http://shop.oreilly.com/product/0636920029281.do PROGRAMMING Use techBASIC Sampler to ◆ View the complete source code for every example ◆ Check out the built-in help system ◆ Run the step-and-trace debugger ◆ Explore the powerful, and easy to use world of programming with techBASIC IN-APP PURCHASE An in-app purchase unlocks the editing capabilities, giving you the full version of techBASIC so you can customize these programs or write your own. SCIENCE, TECHNOLOGY, ENGINEERING & MATH {STEM) SCIENCE CLASS Engage Students in Scientific Inquiry as they ◆ Understand physics from real data, like zero G on a swing ◆ Collect data from the built-in sensors on the iPhone & iPad ◆ Study the earth’s magnetic field ◆ See the Stars rotate around the sun Check out these apps for science class lesson ideas:   • Accelerometer, Magnetometer and Gyroscope   • E-M Field   • G-Force   • Metal Detector   • Stars MATH CLASS Bring Math Class to Life as Students ◆ Quickly plot functions to understand coordinate systems ◆ Interact with equations using swipe and pinch gestures ◆ Watch a torus degenerate into a sphere ◆ Use numeric integration for calculus ◆ Fit curves to data with polynomial and linear regression ◆ Solve simultaneous equations with matrix math like LU decomposition ◆ Use techBASIC as the power-user’s graphing calculator (see our tutorial blog) Check Out These Apps for Math Class Lesson Ideas:   • Sin_x and Ball   • Torus Geometry   • Integration   • Regression PROGRAMMING CLASS ◆ Engage students with beautiful interactive graph using just a few lines of code ◆ Clear error messages and step-and-trace debugger make programming easy ◆ Write a program to collect data from the accelerometer in one class period ◆ Learn problem solving skills ◆ Write powerful programs to control and interact with the world around them ◆ BASIC programming language is easy to learn and widely used ◆ Built-in help system answers questions right in the app ELECTRONICS & SENSORS The techBASIC website has numerous tutorials you can modify ◆ Turn an iPhone into a magnetometer ◆ Build Bluetooth low energy based circuits ◆ Turn an iPhone into a Plant Moisture Meter using HiJack ◆ Hack a Remote Control car with an Arduino and Bluetooth LE ◆ Connect to Bluetooth low energy devices from the iPhone and iPad ◆ Collect Data from a model rocket iPhone flight using the TI SensorTag ◆ Access data real-time from the built-in accelerometer, magnetometer and gyroscope sensors FREE DOCUMENTATION QUICK START GUIDES FOR THE IPHONE AND IPAD See http://www.byteworks.us/Byte_Works/Documentation.html ◆ Learn how to quickly access the main features of techBASIC ◆ Get information on the examples included with techBASIC Sampler REFERENCE MANUAL FOR techBASIC ◆ Over 300 pages of documentation ◆ Dozens of sample programs and images ## Key features - Free standalone apps with source code - Electronics and sensor projects - Data collection and analysis - Interactive graphics and programming - Companion to O'Reilly book - Built-in help and debugger - STEM education tools ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Add Editing | $14.99 | one-time | ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/techsampler/id626214040/reviews.md ### 5/5 — Fantastic Programming Tool *2013-12-21* I bought the book that goes with this app, downloaded techSampler, loved it upgraded to techBasic, loved it even more bought App Builder so have the complete suite now. Brings back so many happy memories of using BASIC but this time I can now write super cool apps for IOS devices outside of Xcode. I am so impressed with the development environment used directly on the iPad/iPhone. Not only can you code an app but you can run it directly from within the IDE. It has syntax checking, breakpoints, a complete help tool….plus so many samples. On top of this the support is superb, quick to respond with clear concise replies. It is a fantastic tool for hard core developers and novices alike….get it now! ### 2/5 — No sound? *2013-12-16* No play command. No sound command. Not even a beep or a bell? Really? ## Frequently asked questions about techSampler ### What is techSampler? techSampler offers dozens of free, standalone apps with complete source code for electronics, science, math, and graphics. It serves as a companion to the O'Reilly book 'Building iPhone & iPad Electronics Projects'. ### What kind of projects can I explore with techSampler? You can explore projects related to electronics, data collection, interactive graphics, programming controls, and connecting to sensors and Bluetooth LE devices like Arduino. ### Does techSampler offer programming tools? Yes, techSampler allows you to view complete source code, use a built-in help system, and run a step-and-trace debugger. An in-app purchase unlocks editing capabilities for customization or writing your own programs. ### How does techSampler help with science and math education? For science, it helps understand physics with real data, collect sensor data, and study fields like magnetism. For math, it allows plotting functions, interacting with equations, and performing calculus and matrix math. ### Is techSampler suitable for classroom learning? Yes, the app is designed to engage students in scientific inquiry and bring math class to life. It provides lesson ideas and tools for programming and problem-solving. ### What devices is techSampler compatible with? techSampler is compatible with iPhone, iPad, and iPod touch devices. ### What is the update frequency for techSampler? The app was last updated on February 14, 2017, with version 3.3.3. While updates may not be frequent, the core content remains valuable for learning. ### What is the user sentiment for techSampler? Based on the provided data, techSampler has a rating of 3.0 stars from 2 ratings, indicating a mixed user reception. ## Version history (last 5 releases) ### 3.3.3 — 2017-02-14 This app has been updated by Apple to display the Apple Watch app icon. ° Fixes a problem under iOS 8 that causes a crash when a new program is created. ### 3.3.2 — 2016-10-03 - Fixes copy/paste in iOS 10. ### 3.3.1 — 2016-07-05 • GET and PUT support longer files and longer arrays in files. • The tab key on external keyboards is supported. • Changes in iOS 9 caused problems with external keyboards; these have been corrected. • Changes in iOS 9 caused problems with several BLE calls; these have been corrected. • Numerous minor enhancements and bug fixes. See our support page for details. ### 3.3 — 2015-08-12 • Code completion helps you enter programs with suggested identifiers and reserved words. • Text is colored by syntax. • A new programming oriented editor shows lines without wrapping and supports horizontal scrolling. • UDP support allows communication with devices that use UDP for communication. • The barometer sensor on the iPhone 6 is supported. • The keyboardChanged event notifies the program when the keyboard is shown or hidden. • TextView.replaceText now allows replacement of a range of text in a TextView. • Image.getCameraImage now has an optional parameter to specify that the image should come from the front camera. • Comm.readHTTP now has an optional parameter to set the communications time out value. • When emailing source, the source is now also included as an attachment. • Integer exponents now get special treatment, so expressions like (-2.3)^2 work with no error. • Numerous minor enhancements and bug fixes, especially for iOS 8. See our support page for details. ### 3.2.2 — 2014-11-07 • Better support for Unicode characters in string operations. • Your apps can vibrate the iPhone. • Polygon operations are available when drawing on images. • Fixes incompatibilities with iOS 8. • Numerous bug fixes. 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User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-25.*