Comparison

Electronic Lab Free 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

Electronic Lab Free

This app provides electrical and computer engineering tools for professionals and hobbyists. It offers circuit design, simulation, component libraries, and measurement functionalities for on-the-go use.

Highlights
  • Circuit design and simulation
  • Component libraries and datasheets
  • Calculators and unit conversion
  • Arduino code editor
  • Waveform audio visualizer
  • Electronic color code identification
Features
Read full description

Electronic Lab App Description Electronic Lab is a great phone application for people working in the field of electrical and computer engineering. Hobbyist, DIYers, Students, Technicians with specific needs, Engineers can all benefit from this app. It is an amazing community of Tools, Projects and resources providing functionalities to measure two or more electrical values such as voltage, current and signals. The app’s natural touch experience is designed for all phones and tablets. Whether you want to design a power supply circuit, program an Arduino board or analyze an analog signal on-the-go, Electronic Lab gives you the best experience. It brings the bulky tools of the electrical/electronic industry to the palm of your hand. Features Electronic Color code Color picker Alpha-Numeric Code Identification Sample circuits Component libraries Calculators Component Datasheet Formula Calculators Unit Conversion Arduino Code editor Circuit design and simulation PCB design Chip Simulation Waveform audio visualizer Signal to Audio Page Bookmarking The following features require the Bluetooth module Voltmeter Ammeter Oscilloscope Voltage generator Frequency generator Chip programming (Arduino) Contribution Share Simulations Shares circuits Share code Add formula Add Sample circuit Add PCB design

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

Electronic Lab Free4 screens
555 Timer & Oscillators Guide4 screens

Verdict

The call

The clearest difference is ads: Electronic Lab Free at none against 555 Timer & Oscillators Guide's shown. Electronic Lab Free also leads on update cadence (every 9 days vs every 5 months) and iOS requirement (8.0 vs 16.0). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Electronic Lab Free ships an update every 9 days, 555 Timer & Oscillators Guide every 5 months. The most recent releases landed on September 26, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
Electronic Lab Free versus 555 Timer & Oscillators Guide: the parameters behind the verdict, then further details
ParameterElectronic Lab Free555 Timer & Oscillators Guide
PriceFreeFree
Rating4.2 (16 ratings) — better—
Positive reviews87.5% of reviews—
Number of ratings16 — better—
Update frequencyEvery 9 days — betterEvery 5 months
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS8.0 — better16.0
Further details — not scored
Size51 MB24 MB
Age rating4+4+
DeveloperLuai ElamirALG Software Lab

In-app purchases

None

Electronic Lab Free

No in-app purchases

None

555 Timer & Oscillators Guide

No in-app purchases

Questions

Is Electronic Lab Free free?
Electronic Lab Free is free to download, with no in-app purchases.
Is 555 Timer & Oscillators Guide free?
555 Timer & Oscillators Guide is free to download, with no in-app purchases.
Do Electronic Lab Free or 555 Timer & Oscillators Guide have ads?
555 Timer & Oscillators Guide shows ads; Electronic Lab Free does not.
Which is updated more often, Electronic Lab Free or 555 Timer & Oscillators Guide?
Electronic Lab Free ships an update every 9 days, and 555 Timer & Oscillators Guide every 5 months. Most recently, Electronic Lab Free was updated on September 26, 2026 and 555 Timer & Oscillators Guide on October 12, 2026.

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