Comparison

techSampler vs Bode Plot Calculator

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

Bode Plot Calculator

This advanced calculator is designed for creating Bode plots and Nyquist diagrams. It also supports complex number calculations and time-domain graphing. Users can export plots and calculations for further analysis.

Highlights
  • Bode Plot generation
  • Nyquist Diagram visualization
  • Complex number calculations
  • Time-domain graphing
  • Export plots and calculations
  • Intuitive interface with themes
  • Sliders for real-time parameter changes
Features
Read full description

This is not a standard scientific calculator, it is optimized to evaluate Bode plots and Nyquist diagrams. This calculator is also fully compatible with the complex domain and standard graphs in time domain (linear). Writing a calculation produces the numeric result, as any calculator, while adding the variable t produces a plot in time domain. Inserting f, omega or s instead, produces the Bode Plot, then it is possible to switch to the Nyquist diagram. Functionalities: - Nice looking interface, intuitive, immediate and able to not only replace, but to enrich hardware calculators. - Elegant and modern themes and colors to choose from, all included in the first purchase. - A little magic feature: in scientific notation, swipe over the result to move the decimal dot and see the ten power change :) - All scientific function (sin, cos, tan, ..., log, ln, exp, ..., atan2). - Calculation structured in 2D, with fractions, powers, roots, brackets and so on, with very easy to nest operations, no limits! - Tap on the calculation to place the cursor and write. - Undo/Redo buttons - A catalog with 40 physics fundamentals constants, with name and unit of measure, ready to be inserted. - Possibility to store values. - Chronology. - Sliders: yes, you can insert many parameters and change them swiping on a slider to see the effect in real time. - Spaces: access to up to 4 spaces on which you can edit and keep calculations, useful also to superpose different plots. - Joystick mode: swipe over the buttons to move the cursor (still in beta). - Bode Plots: inserting a variable, s, omega or f, produces the Bode Plot, toggling on the button it switches to the Nyquist diagram. - Linear Plots: inserting the t variable, produces a plot in a linear domain. - Complex numbers: the app automatically uses complex numbers when needed, no need to set the complex mode. - Plots also support for complex values. - Integrals and derivatives (in the future also limits). - Export plot and calculation as image/PDF, copy result as text

Screenshots

techSampler4 screens
Bode Plot Calculator4 screens

Verdict

The call

The clearest difference is review sentiment: Bode Plot Calculator at 100% against techSampler's 50%. Bode Plot Calculator also leads on rating (5.0 vs 3.0) and in-app purchases (none vs 1). techSampler's advantage is price (Free vs $3.99) and update cadence (every 4 months vs every 12 months). On ratings volume, ads 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

techSampler is free to download; Bode Plot Calculator costs $3.99 up front. techSampler sells 1 one-off in-app purchase. Bode Plot Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Bode Plot Calculator holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 50% of techSampler's written reviews are positive against 100% of Bode Plot Calculator's.

UpkeepUpdate frequency

techSampler ships an update every 4 months, Bode Plot Calculator every 12 months. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

Scorecard7 real differences · 3 level
techSampler versus Bode Plot Calculator: the parameters behind the verdict, then further details
ParametertechSamplerBode Plot Calculator
PriceFree — better$3.99
Rating3.0 (2 ratings)5.0 (1 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings2 — better1
Update frequencyEvery 4 months — betterEvery 12 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better15
Further details — not scored
Size38 MB9 MB
Age rating4+4+
DeveloperByte Works, Inc.Edoardo Orzes

Customer experience

techSampler

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Bode Plot Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

techSampler

One-time1
  • Add Editing$14.99
None

Bode Plot Calculator

No in-app purchases

Questions

Is techSampler free?
techSampler is free to download, with in-app purchases available.
Is Bode Plot Calculator free?
Bode Plot Calculator costs $3.99, with no in-app purchases.
Which has better reviews, techSampler or Bode Plot Calculator?
Bode Plot Calculator is rated higher. techSampler averages 3.0 out of 5 from 2 ratings, while Bode Plot Calculator averages 5.0 from 1 ratings.
Do techSampler or Bode Plot Calculator have ads?
Neither techSampler nor Bode Plot Calculator shows ads.
Which is updated more often, techSampler or Bode Plot Calculator?
techSampler ships an update every 4 months, and Bode Plot Calculator every 12 months. Most recently, techSampler was updated on October 6, 2026 and Bode Plot Calculator on October 8, 2026.

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