Turtle Universe vs Electronic Circuit Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Turtle Universe
Explore and learn about scientific phenomena through interactive microworlds. Create your own simulations using text or blocks, and engage with a global community of young learners. Discover over 100 scientific models and create computational art and games.
- Explore 100+ scientific models
- Create custom microworlds
- Code with text or blocks
- Investigate phenomena
- Engage in global discussions
- Create computational art and games
Read full descriptionHide full description
Dive into the mesmerizing world of Turtle Universe, where you can explore and learn about various social and scientific phenomena through captivating microworlds. Unleash your creativity by coding your own microworlds with text or blocks, and join lively discussions with young learners across the globe! 1) Discover over 100 intriguing scientific models from diverse fields – with even more on the way! 2) Investigate phenomena such as traffic jams, predator-prey interactions, and the blooming of flowers. 3) Immerse yourself in enthralling storylines within the microworlds. 4) Create and play with stunning computational art and addictive games just for fun! Inspired by NetLogo, the leading multi-agent programmable modeling environment, Turtle Universe brings the limitless power of computational modeling to smartphones and tablets of young students and educators like you! Experience genuine scientific modeling shared by countless researchers and students worldwide. Turtle Universe supports most NetLogo, NetLogo Web, and NetTango models right from the start. From the creators of Physics Lab, a physics experiment simulation app loved by over 3 million learners and teachers. =========================== Term of Use: https://static.turtlesim.com/products/Term-Of-Use.txt Privacy Policy: https://static.turtlesim.com/products/Privacy-Policy.txt =========================== Copyright 2021 John Chen & Uri Wilensky. All rights reserved. Turtle Universe is authored by John Chen & Uri Wilensky and maintained by CCL at Northwestern University. If you mention the software in a publication, please include the citation below: * Chen, J. & Wilensky, U. (2021). Turtle Universe. Center for Connected Learning and Computer-Based Modeling, Northwestern University, Evanston, IL.
Electronic Circuit Calculator
This app provides a comprehensive suite of calculators and design tools for electronic engineering. It assists with circuit design, filter analysis, and component calculations for resistors, capacitors, and inductors. Ideal for both professionals and students, it simplifies complex electronic projects.
- Comprehensive calculator collection
- Filter design with graph plotting
- Resistor, transistor, capacitor design tools
- Amplifier and inductor design
- Circuit analysis and design
- Offline functionality
Read full descriptionHide full description
Electronic Circuit Calculator is a powerful electronics toolkit combining circuit calculators, circuit analysis, design tools, and interactive simulations in one app. Built for electronics and electrical engineering students, hobbyists, technicians, and engineers, it helps you calculate, analyze, design, and explore electronic circuits. CIRCUIT ANALYSIS & THEORY • Thevenin Theorem • Norton Theorem • Kirchhoff’s Current Law (KCL) • Kirchhoff’s Voltage Law (KVL) • Nodal Analysis • Mesh Analysis • Ohm’s Law • Voltage Divider • Series and Parallel Circuits • RLC Resonance INTERACTIVE CIRCUIT SIMULATIONS Explore electronics with interactive simulations that help you understand circuit behavior. • Buck Converter Simulation • Boost Converter Simulation • Sawtooth Generator Circuit • AND, OR, NAND and NOR Gate Simulations • Shift Register Simulations • Multiplexer (MUX) • Demultiplexer (DEMUX) • Counter IC • PISO and SIPO Simulations POWER ELECTRONICS • Buck Converter Calculator • Boost Converter Calculator • Buck and Boost Simulations DIGITAL ELECTRONICS • Karnaugh Map • Decimal to Binary Converter • Logic Gate Simulations • Multiplexer and Demultiplexer • Counter IC • Shift Registers • PISO and SIPO OP AMP & ANALOG ELECTRONICS • Inverting Amplifier • Non-Inverting Amplifier • Differential Amplifier • Summing Amplifier • Integrator • Differentiator • Comparator • Schmitt Trigger TRANSISTOR, MOTOR & AMPLIFIER TOOLS • Transistor Amplifier Calculator • Transistor Design Tools • Motor Calculations • Stepper Motor Tools • Servo Motor Tools • Power Dissipation FILTER DESIGN • Sallen-Key Active Filters • Butterworth Filters • Chebyshev Filters • Bessel Filters • Band-Pass Filters • Band-Reject Filters • Crossover Filters Graphical visualization is available for supported filter calculations. RESISTOR, CAPACITOR & INDUCTOR TOOLS • Resistor Colour Code • SMD Resistor Code • Resistors in Series and Parallel • Resistor Ratio • LED Series Resistor • Star-Delta / Delta-Star Converter • Pi, Tee and Bridged-Tee Attenuators • Capacitors in Series and Parallel • Capacitor Charge • Capacitor Code • Capacitive Reactance • Inductive Reactance • Inductor Design OTHER ELECTRONICS TOOLS • 555 Timer — Astable and Monostable • Adjustable Voltage Regulator • PCB Trace Width Calculator • Microstrip Trace Width and Impedance • Skin Depth • Coaxial Cable Impedance • Power Calculator • Decibel Converter • Decibel to Watt and Watt to Decibel Electronic Circuit Calculator is useful for circuit analysis, circuit theory, electronic design, electrical calculations, digital electronics, power electronics, filter design, transistor calculations, op amp calculations, and electronics engineering study. Whether you are solving Thevenin, Norton, KCL, KVL, nodal or mesh problems, designing filters and amplifiers, or experimenting with digital ICs and converter simulations, the app brings your essential electronics tools together in one place. Calculate circuits. Analyze networks. Simulate electronics. Learn by interacting.
Screenshots
Verdict
The clearest difference is review sentiment: Turtle Universe at 67% against Electronic Circuit Calculator's 11%. Turtle Universe also leads on rating (4.6 vs 4.0) and in-app purchases (none vs 1). On price, update cadence, monetization model 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
Both are free to download. Electronic Circuit Calculator sells 1 one-off in-app purchase. Turtle Universe asks for nothing beyond the download.
Turtle Universe holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Turtle Universe has 52 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 67% of Turtle Universe's written reviews are positive against 11% of Electronic Circuit Calculator's.
Turtle Universe ships an update every 6 weeks, Electronic Circuit Calculator every 2 months. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.
| Parameter | Turtle Universe | Electronic Circuit Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (52 ratings) — better | 4.0 (5 ratings) |
| Positive reviews | 66.7% of reviews — better | 11.1% of reviews |
| Number of ratings | 52 — better | 5 |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 120 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Turtle Sim LLC | Anas Abubakar |
Customer experience
Turtle Universe
Electronic Circuit Calculator
In-app purchases
Turtle Universe
No in-app purchases
Electronic Circuit Calculator
- Upgrade to the Pro version$3.99
Questions
Is Turtle Universe free?
Is Electronic Circuit Calculator free?
Which has better reviews, Turtle Universe or Electronic Circuit Calculator?
Do Turtle Universe or Electronic Circuit Calculator have ads?
Which is updated more often, Turtle Universe or Electronic Circuit Calculator?
Other comparisons















