OhmQuill: Electrical Calc

In-app purchases
Content rating
Everyone
1+
Downloads
Content rating
Everyone
In-App Purchases
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About this app

WHAT YOU GET FREE
Use all six tools free: resistor and SMD decoding, circuit and wire calculations, thread references, solar sizing, unit-price comparison, and every reference chart. Small saved sets are included for trying each workflow.

IN-APP PURCHASES
Every purchase is a one-time, non-consumable unlock. Current, localized prices are shown by Google Play on demand.

OhmQuill All Access
Unlocks all six tools at once: unlimited saved projects, jobs, runs, systems and lists; bills of materials; panel-schedule, takeoff, torque and payback workspaces; and CSV export.

Individual Tool Modules
Each tool can also be unlocked individually. Module unlocks expand unlimited saved work, advanced workflows, and export for that specific tool.

PRIVACY AND OFFLINE USE
No account is required. Saved work stays on device and is never uploaded. The app works offline, has no ads, and uses no analytics.

bee2.io LLC — more apps at https://bee2.io
Electrical calculators: Ohm's law, wire ampacity, solar sizing & unit tools.
Updated on
Oct 11, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

A complete redesign: a calmer layout, larger type, clay artwork and a 3D home scene across every tool.

Also in this update:
- Tablets: every tool sits in one centred column and the home screen fills the page.
- Headline figures stay readable on every card.
- Upgrade names no longer break inside a word when the store cannot be reached.