Comparison

AC Circuit Analyzer vs 555 Timer & Oscillators Guide

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

Head to head
About

AC Circuit Analyzer

This application enables users to simulate and design AC circuits, offering a unique way to input circuits in phasor form. It's an ideal tool for students studying electrical engineering and related fields.

Highlights
  • AC circuit simulation
  • Phasor input for circuits
  • Ideal for theoretical and real-world scenarios
  • Supports various electrical engineering courses
  • User-friendly interface
Features
Read full description

This easy to use AC Circuit Analyzer allows users to simulate AC Circuits. The AC Circuit Analyzer is the only Circuit Analyzer that allows user to enter AC circuits in Phasor form. Making it the ideal solution for both theoretical, and real-world AC circuit simulation. The AC Circuit Analyzer is perfect for students taking courses that use AC Circuits; such as Circuits II, EM-Fields, Power Engineering, and Telecommunications.

About

555 Timer & Oscillators Guide

Features
Read full description

Master the design of oscillators and waveform generators using 555 timer integrated circuits, digital logic integrated circuits, operational amplifiers, and transistors. The application provides a comprehensive collection of over 130 tutorials and circuit diagrams, covering 555 timer circuits and practical applications, CMOS 4000 series logic oscillators, TTL 74LS and 74HC series oscillators, operational amplifier–based waveform generators, and transistor multivibrators. Designed for electronics beginners, students, hobbyists, and professional engineers, the app serves as a complete reference and learning tool for designing, understanding, and building oscillators, multivibrators, pulse generators, and waveform circuits commonly used in both analog and digital electronics. In addition to tutorials and schematics, the app includes built-in calculators for frequency, timing, duty cycle, and component value estimation, helping users quickly calculate and adjust circuit parameters. All topics are presented with clear circuit diagrams and detailed explanations. Available in 14 Languages: • English, French, German, Indonesian, Italian, Japanese, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Turkish, Ukrainian, and Vietnamese — study in your native language! Covered Topics: • 555 Timer IC Series • Astable, monostable, and bistable modes • Pulse Width Modulation (PWM) • Voltage conversion circuits • Sensor and external module interfacing • CMOS Logic Oscillators • CMOS 4000 series circuits • Astable, monostable, and bistable modes • Gated CMOS oscillators • TTL / HC Logic Oscillators • TTL 74LS series circuits • 74HC series logic oscillators • Astable and monostable modes • Operational Amplifier Oscillators • Sine wave generators • Square-wave pulse generators • Triangle wave generators • Transistor-Based Oscillators • Transistor-Based Astable multivibrators • Transistor-Based Monostable multivibrators The content is regularly updated and expanded with each new release, ensuring the latest tutorials and circuit examples are always available.

Screenshots

AC Circuit Analyzer4 screens
555 Timer & Oscillators Guide4 screens

Verdict

The call

The clearest difference is in-app purchases: 555 Timer & Oscillators Guide at none against AC Circuit Analyzer's 1. AC Circuit Analyzer's advantage is ads (none vs shown) and update cadence (fortnightly vs every 5 months). On price 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. AC Circuit Analyzer sells 1 one-off in-app purchase. 555 Timer & Oscillators Guide asks for nothing beyond the download.

UpkeepUpdate frequency

AC Circuit Analyzer ships an update fortnightly, 555 Timer & Oscillators Guide every 5 months. The most recent releases landed on June 1, 2026 and September 24, 2026 respectively.

Scorecard4 real differences · 5 level
AC Circuit Analyzer versus 555 Timer & Oscillators Guide: the parameters behind the verdict, then further details
ParameterAC Circuit Analyzer555 Timer & Oscillators Guide
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyFortnightly — betterEvery 5 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better16.0
Further details — not scored
Size35 MB24 MB
Age rating4++4
DeveloperPaul MoatALG Software Lab

In-app purchases

1 purchases

AC Circuit Analyzer

One-time1
  • Unlock Full Access$1.99
None

555 Timer & Oscillators Guide

No in-app purchases

Questions

Is AC Circuit Analyzer free?
AC Circuit Analyzer is free to download, with in-app purchases available.
Is 555 Timer & Oscillators Guide free?
555 Timer & Oscillators Guide is free to download, with no in-app purchases.
Do AC Circuit Analyzer or 555 Timer & Oscillators Guide have ads?
555 Timer & Oscillators Guide shows ads; AC Circuit Analyzer does not.
Which is updated more often, AC Circuit Analyzer or 555 Timer & Oscillators Guide?
AC Circuit Analyzer ships an update fortnightly, and 555 Timer & Oscillators Guide every 5 months. Most recently, AC Circuit Analyzer was updated on June 1, 2026 and 555 Timer & Oscillators Guide on September 24, 2026.

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