Mobile Electrician vs SYSTEM // ZERO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mobile Electrician
This app provides a comprehensive suite of electrical calculation tools for professionals and students. It covers a wide range of topics including Ohm's law, motor calculations, conductor sizing, and various standards. Access essential electrical data and perform complex computations quickly and accurately.
- Ohm's law calculations (DC/AC)
- Motor performance analysis
- Conductor resistance and sizing
- Capacitor and resistor calculations
- Standard compliance tools (NEC, IEC, etc.)
- Unit conversions
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Basic electrical calculations on your mobile Mobile Electrician is a simple and powerful collection of electrical tools. It helps to save both time and effort while providing accurate results to various calculations. With this app you always have all important information at hand! The app includes: Basics: Ohm's law for DC Ohm's law for AC LC Resonance Y-Δ Transformation Electrical Energy Current Density Ideal transformer AC circuits RC snubbers Capacity: Connection of capacitors Capacitive reactance Run a 3 phase motor on a single phase Capacitive Voltage Divider Capacitor Charge / Energy Calculator Decode alphanumeric value Encode alphanumeric value Capacitor to reduce voltage Calculation of discharge time of capacitors Capacitor reactive power Resistance: Connection of resistors Voltage divider LED Resistor Decode the color bands resistors Encode the color bands resistors Wheatstone Bridge Calculator Decode alphanumeric value Encode alphanumeric value Standard Resistor Value Inductance: Connection of inductors Wire Self Inductance Inductive reactance Inductive Voltage Divider Decode the color bands inductors Inductance of an air core inductor Inductance of a solenoid Conductor: Conductor Resistance Conductor length Conductor size Voltage drop Electrical resistivity and conductivity Maximum length of conductor Motor: Calculate Amps Calculate Power Calculate kVA (3 Phase) Calculate Power Factor(3 Phase) Calculate efficiency Calculate of the motor slip Calculate motor torque Individual compensation three-phase induction motors Calculate motor power for centrifugal pump Calculate motor power for piston compressor Calculate motor power for the fan Three-Phase Motor Voltage Unbalance Three-Phase Motor Current Unbalance Motor Protection Standards: Allowable ampacities for wire (NEC,IEC,CEC,PUE,IET,AS/NZS) Wire Size Calculator(NEC,IEC,CEC,PUE,IET,AS/NZS) Motor protection(PUE) Maximum circuit conductor length(NEC,IEC,CEC,PUE,IET,AS/NZS) Maximum circuit ampacity(NEC,IEC,CEC,PUE,IET,AS/NZS) Conduit Fill Calculator(NEC) Others: Minimum levels of short-circuit current Short-circuit current at the secondary terminals of a MV/LV distribution transformer Calculate fuse Power of heating element Heating Element use Nichrome Leakage current Calculation sizing a generator for your home IP Code Appliance classes Force of an Electromagnet Electricity Cost Calculator Calculation of electrical loads applying demand factor UPS Battery size calculator UPS Battery runtime calculator Calculation of transformer rating Generator short circuit fault current Calculation of earthing conductors Compensation to increase the available active power of the transformer Conversion: Conversion Wire sizes Conversion VA-W-VAr and calculate Reactive Power Compensation Conversion cos(φ)-sin(φ)-tg(φ) AWG Conversions Conversion of units of temperature Conversion distance Conversion units of pressure Conversion units of flow Conversion units of volume Conversion voltage Conversion units of energy Conversion SI prefixes Conversion Weight Time Units Conversion Power Units Conversion Cables: Calculate number cables that fits in a pipe Cable Reel Capacity Length of cable on a reel Inductive reactance cable Calculate the weight of the metal in the cable Cable weight by formulas Wiring Color Codes Length of a Hanging Cable Power losses in cable Sizing of protective earthing conductor Calculation history For each calculation is given a separate help Mathematical calculator Percentage calculator Time calculator Online and offline handbook Making reports and screenshots. Save, print and send
SYSTEM // ZERO
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YOUR LIFE. YOUR QUESTS. YOUR SYSTEM. SYSTEM//ZERO transforms personal progress into an immersive leveling experience. Set your objectives, complete daily quests and watch your character grow alongside you. Every completed mission moves you forward. COMPLETE DAILY QUESTS Turn the things you want to accomplish into missions across different areas of your life. Check them off as you complete them and build consistency one day at a time. LEVEL UP Earn progress through your actions and advance through levels and ranks. EVOLVE AS YOU PROGRESS Your system evolves with you. Unlock new stages and experience a visual progression that makes every milestone feel meaningful. BUILD YOUR STATS Develop different attributes and see your progress reflected through your stats and overall power. CHOOSE YOUR SYSTEM Customize your experience with different System Packs, each offering its own visual identity, atmosphere and progression experience. YOUR PROGRESS. SECURED. Create an account to protect your progress and keep your unlocked content connected to you. You don't need another checklist. You need a system. Enter SYSTEM//ZERO.
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Verdict
The clearest difference is price: SYSTEM // ZERO at Free against Mobile Electrician's $4.99. SYSTEM // ZERO also leads on update cadence (every 3 weeks vs every 4 months). Mobile Electrician's advantage is in-app purchases (none vs 5). On ads, device support and iOS requirement 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
SYSTEM // ZERO is free to download; Mobile Electrician costs $4.99 up front. SYSTEM // ZERO sells 5 one-off in-app purchases. Mobile Electrician asks for nothing beyond the download.
Mobile Electrician ships an update every 4 months, SYSTEM // ZERO every 3 weeks. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.
| Parameter | Mobile Electrician | SYSTEM // ZERO |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 2.6 (5 ratings) — better | — |
| Positive reviews | 61.1% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 4 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 27 MB | 60 MB |
| Age rating | 4+ | 12+ |
| Developer | Anatolij Tarasenko | Raushan Nimatov |
In-app purchases
Mobile Electrician
No in-app purchases
SYSTEM // ZERO
- Knight Protocol System Pack$9.99
- Solo Level Up System Pack$9.99
- Mass Build$24.99
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- Fat Loss Protocol$24.99
- Physique Maintenance$24.99
Questions
Is Mobile Electrician free?
Is SYSTEM // ZERO free?
Do Mobile Electrician or SYSTEM // ZERO have ads?
Which is updated more often, Mobile Electrician or SYSTEM // ZERO?
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