Comparison

techSampler vs AVR Projects

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

techSampler

Explore dozens of free, standalone apps with complete source code for electronics, science, math, and graphics. This companion app to a popular book provides executable projects and programming tools for iPhone and iPad.

Highlights
  • 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
Features
Read full description

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

About

AVR Projects

Features
Read full description

AVR Projects is an app for those who are learning AVR Microcontroller programming, and it contains demo projects for makers, electronic enthusiast and engineering students. It focuses on ATmega328p, which is a microcontroller IC on Arduino Uno, and Atmel (Microchip) Studio IDE. * Learn AVR Microcontroller Programming with example codes in Embedded written on Atmel Studio IDE, Proteus simulation files, circuit diagrams and descriptions. * Easy to access sensors and ICs’s datasheets. More projects will be added soon!

Screenshots

techSampler4 screens
AVR Projects4 screens

Verdict

The call

The clearest difference is update cadence: AVR Projects at daily against techSampler's every 4 months. techSampler's advantage is iOS requirement (7.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. techSampler sells 1 one-off in-app purchase and AVR Projects sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

techSampler ships an update every 4 months, AVR Projects daily. The most recent releases landed on September 4, 2026 and September 9, 2026 respectively.

Scorecard2 real differences · 8 level
techSampler versus AVR Projects: the parameters behind the verdict, then further details
ParametertechSamplerAVR Projects
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 4 monthsDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS7.0 — better17.0
Further details — not scored
Size38 MB20 MB
Age rating4+4+
DeveloperByte Works, Inc.Zaw Win Myat

In-app purchases

1 purchases

techSampler

One-time1
  • Add Editing$14.99
10 purchases

AVR Projects

One-time10
  • R2R Ladder DAC$0.99
  • Sawtooth Waveform$0.99
  • Triangular Waveform$0.99
Show 7 more
  • Sine Waveform$0.99
  • Ammeter AVR$0.99
  • 4x3 Matrix Keypad$0.99
  • Ohm Meter AVR$0.99
  • Voltmeter AVR$0.99
  • TM1637 Interfacing with AVR$0.99
  • Graphic LCD Interfacing$0.99

Questions

Is techSampler free?
techSampler is free to download, with in-app purchases available.
Is AVR Projects free?
AVR Projects is free to download, with in-app purchases available.
Do techSampler or AVR Projects have ads?
Neither techSampler nor AVR Projects shows ads.
Which is updated more often, techSampler or AVR Projects?
techSampler ships an update every 4 months, and AVR Projects daily. Most recently, techSampler was updated on September 4, 2026 and AVR Projects on September 9, 2026.

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