# Electrical Formulator vs InstElectric

The clearest difference is rating: Electrical Formulator at 5.0 against InstElectric's 4.3. Electrical Formulator also leads on review sentiment (16% vs 0%). InstElectric's advantage is in-app purchases (none vs 1) and update cadence (monthly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Electrical Formulator sells 1 one-off in-app purchase. InstElectric asks for nothing beyond the download.

Electrical Formulator holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 16% of Electrical Formulator's written reviews are positive against 0% of InstElectric's.

Electrical Formulator ships an update every 2 months, InstElectric monthly. The most recent releases landed on September 26, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Electrical Formulator | InstElectric |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/electrical-formulator/id299749412/reviews)** | [4.3 (3 ratings)](https://appshunter.io/ios/app/instelectric-electricity/id1447422315/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | **15.6% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Freemium | **Free** |
| Size | 16 MB | 19 MB |
| Requires iOS | 18.4 | **8.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Historycentral.com](https://appshunter.io/developer/1744330560) | [Angel Martinez](https://appshunter.io/developer/1446956865) |

## What reviewers say

### Electrical Formulator

[App page](https://appshunter.io/ios/app/electrical-formulator/id299749412)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Features For Electrcial | $1.99 | one-time |


### InstElectric

[App page](https://appshunter.io/ios/app/instelectric-electricity/id1447422315)

This tool simplifies electrical installation calculations for designers, electricians, and technicians. It supports low-voltage circuit dimensioning, cable sizing, and protection estimations, referencing international standards.

**Highlights:** Low voltage circuit dimensioning, Cable sizing and protection, Short-circuit current estimation, Building load forecasting, Capacitor bank calculations, Conduit and tray sizing, Wire size conversions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Electrical Formulator free?

Electrical Formulator is free to download, with in-app purchases available.

### Is InstElectric free?

InstElectric is free to download, with no in-app purchases.

### Which has better reviews, Electrical Formulator or InstElectric?

Electrical Formulator is rated higher. Electrical Formulator averages 5.0 out of 5 from 1 ratings, while InstElectric averages 4.3 from 3 ratings.

### Do Electrical Formulator or InstElectric have ads?

Neither Electrical Formulator nor InstElectric shows ads.

### Which is updated more often, Electrical Formulator or InstElectric?

Electrical Formulator ships an update every 2 months, and InstElectric monthly. Most recently, Electrical Formulator was updated on September 26, 2026 and InstElectric on September 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*