Comparison

Blast Pressure vs Circuitry

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

Head to head
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

About

Circuitry

Build and simulate electronic circuits in an intuitive 3D environment. This app offers lightning-fast analysis and a user-friendly interface, making complex engineering accessible. Circuits are saved as documents for easy sharing and management across devices.

Highlights
  • 3D circuit building
  • GPU-accelerated analysis
  • Intuitive 3D interface
  • Document-based circuit files
  • Component placement and connection
  • Resistor, voltage source, light bulb components
Features
Read full description

Welcome to Circuitry - the world's first and only 3D circuit builder! INSANELY FAST Circuitry uses an optimized, GPU-accelerated network analysis algorithm that will blow your mind. It can calculate the voltages and currents of even the largest circuits in the blink of an eye - an insanely fast blinking eye! SUPER DUPER EASY TO USE While most circuit simulators are stuck in the stone age when it comes to usability, Circuitry takes you on a time-travel journey to the future. Its' 3D interface and intuitive controls will instantly feel familiar - no lengthy tutorials required. DOCUMENT-BASED Every circuit you build in Circuitry is a file. That way, they integrate perfectly into your existing files and can be used exactly the same way: you can duplicate and modify them, share them, and they are available to you on all your devices. HOW TO USE: 1. Place components by dragging from the toolkit to the canvas. 2. Connect components by tapping the sides of the components in cabling mode. 3. Delete or modify components by long pressing on them. AVAILABLE COMPONENTS: - Resistor - Voltage source - Light bulb

Screenshots

Blast Pressure4 screens
Circuitry4 screens

Verdict

The call

The clearest difference is price: Circuitry at Free against Blast Pressure's $4.99. Circuitry also leads on update cadence (every 4 months vs every 8 months) and iOS requirement (12.0 vs 17.0). Blast Pressure's advantage is review sentiment (67% vs 51%). On 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

Circuitry is free to download; Blast Pressure costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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

Scorecard5 real differences · 5 level
Blast Pressure versus Circuitry: the parameters behind the verdict, then further details
ParameterBlast PressureCircuitry
Price$4.99Free — better
Rating—3.9 (156 ratings) — better
Positive reviews66.7% of reviews — better51.4% of reviews
Number of ratings—156 — better
Update frequencyEvery 8 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.012.0 — better
Further details — not scored
Size4 MB35 MB
Age rating4+4+
DeveloperRab EliasRaffael Kaehn

Customer experience

Blast Pressure

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

Circuitry

All ratings155 ratings
Positive68.4%
Neutral12.9%
Negative18.7%
Written reviews37 reviews
Positive51.4%
Neutral13.5%
Negative35.1%

Bugs and requests

Blast Pressure

Not enough reviews yet to summarise bugs or requests.

Circuitry

Reported bugs

6 issues
  • App crashes on launch
  • App doesn't work after download
  • Blank white screen on opening
  • App won't open, only shows a folder
  • Lights won't turn on
Show 1 more
  • Cannot close circuits properly

Requested features

14 requests
  • Add more components (diodes, transistors, capacitors, inductors, speakers, microphones, resistors, switches, LEDs, displays, transformers)
  • Add labels/names for components
  • Add intensity and voltage for cables
  • Add undo/redo buttons
  • Add tutorials or guidance videos
Show 9 more
  • Allow moving placed components
  • Add polarity for components
  • Add graphical representation of current flow
  • Add export of 2D schematic
  • Support DC and AC circuits
  • Allow use of virtual meters
  • Add oscilloscope function (graph vs time)
  • Improve UI intuitiveness
  • Add sample circuits

In-app purchases

None

Blast Pressure

No in-app purchases

None

Circuitry

No in-app purchases

Questions

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

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