Electrical Formulator vs District Manager
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Electrical Formulator
This app provides a comprehensive suite of electrical calculation tools for design and engineering challenges. It offers hundreds of conversion and calculation options, with features to save, print, and email results. Easily access frequently used and recently accessed formulas, with all calculations automatically stored.
- Over 100 electrical formulas
- Save and organize results
- Share results via email or print
- Access most-used and recent formulas
- Supports US/Imperial and metric units
- Formula categories for batteries, motors, transformers, and more
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Electrical Formulator: Your Complete Electrical Calculation Tool Solve virtually any electrical design or engineering challenge with this powerful and intuitive electrical formulator. Packed with hundreds of conversion and calculation tools, it’s the most versatile utility in your toolkit. Save, print, or email your results. Easily access your most-used and recently used formulas. Every calculation is automatically saved for future reference. Key Features: • Instant access to over 100 professional-grade electrical formulas • Save and organize your results for later reference • Share results via email or print • Highlights your most-used and recent formulas • Designed for engineers, electricians, and energy professionals Formula Categories: Batteries • Starting motor amperage • Number of cells required • Estimated operating time Cost Calculations • Appliance and lighting energy usage • Estimated usage hours for new bulbs • Insulation payback period BTU Conversions • BTU to joules, horsepower-hr, watt-hr, calories, foot-pounds, and more Generator Calculations • DC generator output • Generator amperage and efficiency Impedance & Reactance • Resistance & reactance combinations • Inductive and capacitive reactance • Total impedance and parallel circuits Kilowatts & Joules • Convert kilowatts to BTU/hr, joules/sec, lumens, horsepower, megajoules/hr, and more Motors • Single- and three-phase motor calculations • Locked rotor current • Motor kVA (including multiple input scenarios) • Motor speed analysis Ohm’s Law • Calculate for power, voltage, resistance, or current Transformers • Primary and secondary amperage • Full-load transformer sizing (208V, 240V, 480V for single and three-phase) • Impedance and amperage capacity calculations Voltage Drop • Copper and aluminum wire voltage drop (1-phase and 3-phase) • US/Imperial and metric units supported Wiring & Conduits • Wire size and resistance (copper and aluminum) • Wire length calculations • Conduit sizing Whether you’re working in the field, the lab, or the classroom, this electrical formulator helps you work faster, smarter, and with confidence. Users are able to calculate twelve formulas for FREE. Purchase a subscription to calculate additional formulas. All subscriptions come with a 1-WEEK FREE TRIAL and SUPPORT Family Sharing.
District Manager
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District Manager is a Mobile app that can be used with District Manager software that is an innovative, cloud based, asset management solution. Through its mobile app it enables districts and schools to manage all their fixed and mobile assets including PCs and laptops to software, scientific devices, sports equipment and musical instruments, all from one solution. District Manager users have the ability to have mobile access to their full Asset Register with the following features: -Scan QRCodes -Add New Assets -Update Assets -Asset Helpdesk -Sync data between mobile device and cloud -1:1
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Verdict
The clearest difference is in-app purchases: District Manager at none against Electrical Formulator's 1. District Manager also leads on iOS requirement (11.0 vs 18.4). Electrical Formulator's advantage is update cadence (every 2 months vs every 5 months). On price, ads 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
Both are free to download. Electrical Formulator sells 1 one-off in-app purchase. District Manager asks for nothing beyond the download.
Electrical Formulator ships an update every 2 months, District Manager every 5 months. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.
| Parameter | Electrical Formulator | District Manager |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 15.2% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.4 | 11.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Historycentral.com | Results Squared LTD |
In-app purchases
Electrical Formulator
- Pro Features For Electrcial$1.99
District Manager
No in-app purchases
Questions
Is Electrical Formulator free?
Is District Manager free?
Do Electrical Formulator or District Manager have ads?
Which is updated more often, Electrical Formulator or District Manager?
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