Comparison

iCircuit vs Blast Pressure

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

Head to head
About

iCircuit

Design and simulate analog and digital electronic circuits in real-time. This app offers a comprehensive component library, built-in test equipment, and the ability to create custom elements. It's ideal for learning, prototyping, and validating designs without physical components.

Highlights
  • Real-time circuit simulation
  • Extensive component library (300+)
  • Built-in test equipment (multimeter, oscilloscope)
  • Programmable Arduino and PIC microcontroller support
  • Custom element creation and sharing
  • Audio simulation
Features
Currently charting
Read full description

iCircuit is the premier iPhone and iPad app for designing, simulating, and learning analog and digital electronics. Its advanced simulation engine provides real-time, always-on analysis so your circuits stay powered and live, just like working with real components. Use it like a CAD tool: add components, wire them up, and set their properties. But iCircuit is unlike typical CAD apps because it is always simulating. You do not stop to take a measurement or spend time configuring reports. Instead, you just play with the circuit as you normally would, with the power on. Build circuits with over 300 components, from simple resistors and LEDs to programmable Arduinos (Uno, Nano, Mega, ESP8266, ESP32), Raspberry Pi Pico boards running real MicroPython and CircuitPython, PIC microcontrollers, and 60 4000/7400-series digital ICs (more available with Pro). Connect elements, adjust values, and instantly see the results. BUILT-IN TEST EQUIPMENT • Multimeter: Probe any point to read voltage, current, and power • Oscilloscope: Track multiple signals with touch-controlled time scale, stacked/unstacked views, FFT analysis, and Bode plots • Gauges: Visualize voltages, currents, and frequencies directly in your circuit • Signal generators and configurable sources EXTENSIVE COMPONENT LIBRARY • Raspberry Pi Pico and Pico 2 running genuine MicroPython and CircuitPython firmware • Programmable Arduinos (Uno, Nano, Mega, ESP8266, ESP32) • Programmable PIC microcontrollers (assembly and HEX files, more available with Pro) • Power: Voltage regulators (78xx, LM317), sources, dependent sources, power jacks, and simulated antennas • Analog: Resistors, capacitors, inductors, diodes, BJTs, MOSFETs, thermistors, triodes, and tetrodes • Digital: Logic gates (AND, OR, NAND, NOR, XOR), JK and D flip-flops, and 60 4000/7400-series ICs (180+ available with Pro) • ADCs and DACs • Sensors and displays: LEDs, 7-segment, NeoPixels, matrix displays, thermistors • Electromechanical: Motors, servos, SPST/SPDT and DPST/DPDT switches, push buttons, relays, and speakers SPICE, VERILOG, AND VHDL Import vendor SPICE models and subcircuits and use them as components. Write Verilog or VHDL in the HDL element and wire it to the rest of your circuit. CREATE CUSTOM ELEMENTS Build sub-circuits and custom elements to componentize your designs and create reusable modules. Share your custom elements with others via the iCircuit Gallery. AUDIO SIMULATION Hear your circuits. Speakers, buzzers, and microphones produce real audio output. Perfect for students learning electronics, hobbyists prototyping projects, and engineers validating designs, all without burning out a single component. ABOUT ICIRCUIT PRO (OPTIONAL) iCircuit is a complete app with a one-time purchase. iCircuit Pro is optional and adds extra components (including more PICs and a larger 4000/7400 IC library) and helps fund ongoing development. Pro is not required for core simulation or everyday circuit design. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Blast Pressure

This application calculates blast pressure on structures using TNT equivalence. It generates detailed reports including scaled pressure, arrival and duration times, and shock wave graphs, supporting various explosive materials for analysis and design.

Highlights
  • Blast pressure calculation
  • TNT equivalence analysis
  • Comprehensive report generation
  • Scaling laws and Hopkinson rule
  • Shock wave graphing
  • Support for multiple explosive materials
Features
Read full description

The purpose of this application is to determine the Blast Pressure acting on a structure based on TNT equivalence value for further analysis and design. This application generates a full comprehensive report based on scaling laws, Hopkinson rule, Kinney and Graham values. it will determine the following: - Scaled Pressure - Arrival and Duration time - Overpressure Impulse - Scales Peak Overpressure - Scales Impulse Pressure - Scaled duration time - Shock Velocity - Particule Velocity - Peak Dynamic - Peak Reflected Overpressure - Reflected Time - Over Pressure - Net Pressure - Shock wave GRAPH produced by Blast acting on wall at any time t Material can be used in this application: TNT, Dynamite, Amatol, Compound B, HMX, Lead Azide, Mercury Fulminate, Nitroglycerin, PBX, PE4, Pentolite, PETN, RDX, Semtex, Tetryl

Screenshots

iCircuit4 screens
Blast Pressure4 screens

Verdict

The call

The clearest difference is price: Blast Pressure at $4.99 against iCircuit's $12.99. Blast Pressure also leads on in-app purchases (none vs 2). iCircuit's advantage is update cadence (every 4 weeks vs every 8 months) and chart position (#66 vs unranked). On review sentiment, ads, 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

CostPrice · In-app purchases · Ads · Monetization

iCircuit costs $12.99 and Blast Pressure $4.99 up front. iCircuit sells 2 in-app purchases, starting at $1.99 per month. Blast Pressure asks for nothing beyond the download.

UpkeepUpdate frequency

iCircuit ships an update every 4 weeks, Blast Pressure every 8 months. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.

Scorecard5 real differences · 6 level
iCircuit versus Blast Pressure: the parameters behind the verdict, then further details
ParameteriCircuitBlast Pressure
Price$12.99$4.99 — better
Rating3.8 (137 ratings) — better—
Positive reviews61.1% of reviews66.7% of reviews — better
Number of ratings137 — better—
Update frequencyEvery 4 weeks — betterEvery 8 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidPaid
Best chart rank#66 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size179 MB4 MB
Age rating4+4+
DeveloperKrueger Systems, Inc.Rab Elias

Customer experience

iCircuit

All ratings135 ratings
Positive68.1%
Neutral4.4%
Negative27.4%
Written reviews682 reviews
Positive61.1%
Neutral12.6%
Negative26.2%

Blast Pressure

Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

Bugs and requests

iCircuit

Reported bugs

4 issues
  • Oscilloscope and meter functions not working properly
  • Saving and loading circuits can be unreliable
  • Inconsistent behavior when rotating/flipping components
  • Crashes when working with larger or more complex circuits

Requested features

5 requests
  • More components (e.g. transformers, triodes, MOSFETs)
  • Ability to create custom components
  • Frequency domain analysis (Bode plots, FFT)
  • Improved wiring and component placement controls
  • Better support for AC circuits and motors

Blast Pressure

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

iCircuit

Subscriptions2
  • iCircuit Pro (Monthly)$1.991 Month
  • iCircuit Pro (Yearly)$14.991 Year
None

Blast Pressure

No in-app purchases

Questions

Is iCircuit free?
iCircuit costs $12.99, and also offers in-app purchases.
Is Blast Pressure free?
Blast Pressure costs $4.99, with no in-app purchases.
Do iCircuit or Blast Pressure have ads?
Neither iCircuit nor Blast Pressure shows ads.
Which is updated more often, iCircuit or Blast Pressure?
iCircuit ships an update every 4 weeks, and Blast Pressure every 8 months. Most recently, iCircuit was updated on October 21, 2026 and Blast Pressure on October 20, 2026.

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