Comparison

OpAmplifiers vs Digital Electronics Guide

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

Head to head
About

OpAmplifiers

This app aids electronics students by providing information on operational amplifier applications, including schematics, formulas, and component calculations. It offers a simple interface to revise key concepts and check amplifier pinouts.

Highlights
  • Operational amplifier application revision
  • Schematics and input value display
  • Formula lookup
  • Component value calculation
  • Amplifier pinout checking
  • Supports multiple op-amp circuit types
Features
Read full description

The ideal app for electronics studies ! OpAmplifiers allows you to easily revise what you should know about the main applications of Operational Amplifiers, but that's not it ! You can also use OpAmplifiers to calculate the values of your components and quickly check out the pinning of your amplifier, all in a simple and smooth interface. For each application, OpAmplifiers allows you to : - See schematics, and input values. - See the formula of the application. - Check the pinning of your amplifier. The following Operational Amplifier applications are available : - Voltage Follower - Comparator - Inverting Amplifier - Non Inverting Amplifier - Summing Amplifier - Differential Amplifier - Inverting Integrator - Inverting Differentiator

About

Digital Electronics Guide

This app serves as a comprehensive reference for digital electronics, covering essential theory and practical guides. It's designed for students, engineers, and hobbyists to learn and prototype digital circuits with ease. Features include detailed information on logic gates, IC families, and various digital components.

Highlights
  • Logic gate tutorials
  • IC reference data (TTL 7400, CMOS 4000)
  • Digital circuit design and prototyping
  • Covers counters, flip-flops, and more
  • Available in 14 languages
  • Detailed tutorials and references
Features
Read full description

Digital Electronics Guide is a powerful reference tool for electronics students, engineers, and hobbyists. Whether you're just starting out or already experienced, this app helps you design, learn, and prototype with ease. It combines essential theory with practical guides and covers key digital electronics topics, including logic gates, counters, flip-flops, and IC reference data. The app also features detailed information on popular digital IC families such as TTL 7400 and CMOS 4000 series. Perfect for quick learning or as a companion for working on electronic circuits and digital systems. 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! The app includes detailed tutorials and references for: • Basic logic • Families of digital chips • Universal logic elements • Elements with Schmitt trigger • Buffer elements • Flip-flops • Registers • Counters • Adders • Multiplexers • Decoders and demultiplexers • 7-segment LED drivers • Encryptors • Digital comparators • Astable CMOS Oscillators • Monostable CMOS Oscillators • Bistable CMOS Oscillators • Gated CMOS Oscillators • TTL Oscillators • 7400 series ICs • 4000 series ICs Whether you're learning, teaching, or building real-world digital circuits, Digital Electronics Pro is your trusted companion every step of the way.

Screenshots

OpAmplifiers4 screens
Digital Electronics Guide4 screens

Verdict

The call

The clearest difference is ads: OpAmplifiers at none against Digital Electronics Guide's shown. OpAmplifiers also leads on monetization model (free vs ad-supported) and iOS requirement (6.0 vs 16.0). On price, rating, ratings volume and update cadence 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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for OpAmplifiers against 5.0 for Digital Electronics Guide. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

OpAmplifiers ships an update every 6 weeks, Digital Electronics Guide every 5 weeks. The most recent releases landed on September 23, 2026 and August 27, 2026 respectively.

Scorecard3 real differences · 7 level
OpAmplifiers versus Digital Electronics Guide: the parameters behind the verdict, then further details
ParameterOpAmplifiersDigital Electronics Guide
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews—100.0% of reviews
Number of ratings12 — better
Update frequencyEvery 6 weeksEvery 5 weeks — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPodiPhone, iPad
Requires iOS6.0 — better16.0
Further details — not scored
Size3 MB24 MB
Age rating4+4+
DeveloperKyrill CoussonALG Software Lab

Customer experience

OpAmplifiers

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Digital Electronics Guide

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

OpAmplifiers

No in-app purchases

None

Digital Electronics Guide

No in-app purchases

Questions

Is OpAmplifiers free?
OpAmplifiers is free to download, with no in-app purchases.
Is Digital Electronics Guide free?
Digital Electronics Guide is free to download, with no in-app purchases.
Which has better reviews, OpAmplifiers or Digital Electronics Guide?
OpAmplifiers and Digital Electronics Guide are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do OpAmplifiers or Digital Electronics Guide have ads?
Digital Electronics Guide shows ads; OpAmplifiers does not.
Which is updated more often, OpAmplifiers or Digital Electronics Guide?
OpAmplifiers ships an update every 6 weeks, and Digital Electronics Guide every 5 weeks. Most recently, OpAmplifiers was updated on September 23, 2026 and Digital Electronics Guide on August 27, 2026.

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