Comparison

Trigonometric Equations vs Digital Electronics Pro

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

Head to head
About

Trigonometric Equations

Features
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A quick reference to over 150 trigonometric equations that are essential to any student taking a math course with trigonometry as one of its subjects. Complete with zoomable equations as well as a sample problem provided with hint and solution. An easy to use menu with the options All equations, Basics, Identities, Power reduction, Half angle, Triple angle, Calculus. FadiSoft icon on credits page lists all apps by FadiSoft.

About

Digital Electronics Pro

Features
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Digital Electronics Pro 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 Pro version offers additional features, including: • Favourites feature: Allows users to save topics and access them quickly. • Full-text search: Enables quick navigation across all app content. 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 • 7400 series ICs • 4000 series ICs • Astable CMOS Oscillators • Monostable CMOS Oscillators • Bistable CMOS Oscillators • Gated CMOS Oscillators • TTL Oscillators Whether you're learning, teaching, or building real-world digital circuits, Digital Electronics Pro is your trusted companion every step of the way.

Screenshots

Trigonometric Equations3 screens
Digital Electronics Pro4 screens

Verdict

The call

The clearest difference is update cadence: Digital Electronics Pro at every 2 months against Trigonometric Equations's every 20 months. Trigonometric Equations's advantage is price ($0.99 vs $4.99) and iOS requirement (9.0 vs 16.0). 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

Trigonometric Equations costs $0.99 and Digital Electronics Pro $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Trigonometric Equations ships an update every 20 months, Digital Electronics Pro every 2 months. The most recent releases landed on October 8, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 3 level
Trigonometric Equations versus Digital Electronics Pro: the parameters behind the verdict, then further details
ParameterTrigonometric EquationsDigital Electronics Pro
Price$0.99 — better$4.99
Update frequencyEvery 20 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS9.0 — better16.0
Further details — not scored
Size10 MB21 MB
Age rating4+4+
DeveloperFadiSoft Inc.ALG Software Lab SIA

In-app purchases

None

Trigonometric Equations

No in-app purchases

None

Digital Electronics Pro

No in-app purchases

Questions

Is Trigonometric Equations free?
Trigonometric Equations costs $0.99, with no in-app purchases.
Is Digital Electronics Pro free?
Digital Electronics Pro costs $4.99, with no in-app purchases.
Do Trigonometric Equations or Digital Electronics Pro have ads?
Neither Trigonometric Equations nor Digital Electronics Pro shows ads.
Which is updated more often, Trigonometric Equations or Digital Electronics Pro?
Trigonometric Equations ships an update every 20 months, and Digital Electronics Pro every 2 months. Most recently, Trigonometric Equations was updated on October 8, 2026 and Digital Electronics Pro on October 12, 2026.

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