Comparison

Electrical Engineering vs LockBox

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

Head to head
About

Electrical Engineering

This app provides electrical calculations and fundamental concepts for students and professionals. It covers Ohm's Law, power calculations, circuit analysis, and advanced topics like wire sizing and power factor correction.

Highlights
  • Electrical calculations
  • Basic electrical knowledge
  • Advanced electrical topics
  • Ohm's Law and power calculations
  • Circuit analysis theorems
  • Wire sizing and voltage drop
  • Resistor color codes
Features
Read full description

Electrical engineering for technical school and college: theory, formulas and calculators explained clearly. WHY CHOOSE IT • In-depth theory for every component and circuit • Calculators for every formula • Quizzes, mind maps and flashcards for revision • AI Scanner: turn your notes into maps and solve problems TOPICS • Direct current: Ohm's law, Kirchhoff's laws • Alternating current: phasors, impedance • Components: resistors, capacitors, inductors • Circuits: series, parallel, RLC • Electric machines: motors, transformers, generators • Electronics: diodes, transistors, semiconductors STUDY TOOLS • Calculators, quizzes, mind maps, flashcards, archive IDEAL FOR Technical school students and electrical engineering majors. Start studying electrical engineering the easier way today. SUBSCRIPTIONS AND TERMS Full access is available via auto-renewable subscription: • Monthly Subscription • Annual Subscription Prices are shown in the app at purchase and may vary by region. Payment will be charged to your Apple ID at confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours of the end of the current period. Subscriptions can be managed and auto-renew turned off in your Apple ID Account Settings after purchase. Privacy Policy: https://masterapps.it/privacy_policy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

LockBox

Features
Read full description

BLOCK ALL DISTRACTIONS WITH ONE TAP! LockBox is your physical key to focus. Download this app to use your LockBox and maximize focus. You can block all distracting apps with a simple tap, muting all notifications and preventing compulsive phone usage. Choose between Hard Mode, Study Mode, or Easy Mode, tap your phone on the LockBox, and focus on the present moment. To unlock, you must tap on the LockBox again. SAVE TIME & EARN COINS For every minute of focus, LockBox rewards you with in-app coins: * Hard Mode: Earn 60 coins/hour * Study Mode: Earn 35 coins/hour * Easy Mode: Earn 5 coins/hour The longer you stay focused, the more you earn! REDEEM REWARDS Use your in-app coins to buy perks in real life! Our rewards marketplace features exclusive deals for LockBox users — from free or discounted Food & Beverage treats to Clothing, Accessories, and much more. About LockBox Our mission is to build technology that allows people to get their time back. LockBox is a tool to break free from addictive algorithms and support your digital wellbeing: just tap in, lock out, and gift your time to what matters.

Screenshots

Electrical Engineering4 screens
LockBox3 screens

Verdict

The call

The clearest difference is in-app purchases: LockBox at none against Electrical Engineering's 8. LockBox also leads on update cadence (every 10 days vs every 2 months). Electrical Engineering's advantage is device support (3 vs 1) and iOS requirement (15.5 vs 17.6). On price and ads 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. Electrical Engineering sells 7 in-app purchases, starting at $3.99 per month. LockBox asks for nothing beyond the download.

UpkeepUpdate frequency

Electrical Engineering ships an update every 2 months, LockBox every 10 days. The most recent releases landed on October 22, 2026 and October 6, 2026 respectively.

Scorecard4 real differences · 6 level
Electrical Engineering versus LockBox: the parameters behind the verdict, then further details
ParameterElectrical EngineeringLockBox
PriceFreeFree
Rating4.8 (12 ratings) — better—
Positive reviews73.9% of reviews—
Number of ratings12 — better—
Update frequencyEvery 2 monthsEvery 10 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.5 — better17.6
Further details — not scored
Size115 MB193 MB
Age rating4+4+
DeveloperCarlo TerraccianoaSocial Inc.

In-app purchases

7 purchases

Electrical Engineering

Subscriptions5
  • Monthly subscription - Electro$3.991 Month
  • Monthly subscription - Electro$5.991 Month
  • Annual Subscription Electronic$8.991 Year
Show 2 more
  • Annual Subscription Electronic$24.991 Year
  • Annual Subscription Electronic1 Year trial2 variants$24.991 Year
One-time2
  • Lifetime Subscription Electro$29.99
  • Circuits & Electric Machines$99.99
None

LockBox

No in-app purchases

Questions

Is Electrical Engineering free?
Electrical Engineering is free to download, with in-app purchases available.
Is LockBox free?
LockBox is free to download, with no in-app purchases.
Do Electrical Engineering or LockBox have ads?
Both Electrical Engineering and LockBox show ads.
Which is updated more often, Electrical Engineering or LockBox?
Electrical Engineering ships an update every 2 months, and LockBox every 10 days. Most recently, Electrical Engineering was updated on October 22, 2026 and LockBox on October 6, 2026.

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