# Electrical Calculator lite vs REBT Pro

The clearest difference is update cadence: REBT Pro at every 2 weeks against Electrical Calculator lite's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Electrical Calculator lite sells 2 one-off in-app purchases and REBT Pro sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Electrical Calculator lite ships an update every 2 months, REBT Pro every 2 weeks. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Electrical Calculator lite | REBT Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (580 ratings)](https://appshunter.io/ios/app/electrical-calculator-lite/id922903696/reviews)** | — |
| Number of ratings | **580** | — |
| Positive reviews | 39.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 29 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Manuel Mogrovejo](https://appshunter.io/developer/1888765151) |

## What reviewers say

### Electrical Calculator lite

[App page](https://appshunter.io/ios/app/electrical-calculator-lite/id922903696)

This comprehensive tool offers over 60 calculators and 16 converters for electrical engineering, wiring, and circuit analysis. It supports engineers, electricians, students, and hobbyists with calculations ranging from basic Ohm's Law to complex RLC circuits and power conversions.

**Highlights:** 60+ Electrical Calculators, 16 Electrical Unit Converters, Ohm's Law Calculations, RLC Circuit Analysis, Power and Current Calculations, Transformer Calculations, Wire Size Selector

**Features:** Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 16 Electrical Converters | $0.99 | one-time |
| Electrical Calculators | $3.99 | one-time |

**What reviewers like**

- 👍 Very helpful formulas for homework
- 👍 Easy to use interface
- 👍 Comprehensive electricity app, a true Swiss Army knife
- 👍 Well-designed, intuitive, and aesthetic interface
- 👍 Great for work, very useful

**What reviewers complain about**

-  anúncios são muito irritantes
- 💰 Useful features are paywalled (RMS calculator, transformer calculator, MVA/current calculator)
- 💰 Costs too much
- 💰 Extremely basic calculators, rest require purchase
- 💰 Unlock option doesn't work

**Reported bugs**

- Unlock option doesn’t work
- Voltage drop calculator is incorrect compared to other apps

**Requested features**

- Output vs frequency sweep plotting for resonance points or impedance graphs for RL and RC circuits
- Add MHz option for capacitive and inductive reactance calculators
- Add MHz option for resonance frequency calculator


### REBT Pro

[App page](https://appshunter.io/ios/app/rebt-pro/id6761301576)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| REBT Pro Mensual | $3.99 | per month |
| REBT Pro Anual | $34.99 | per year |


## Frequently asked questions

### Is Electrical Calculator lite free?

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

### Is REBT Pro free?

REBT Pro is free to download, with in-app purchases available.

### Do Electrical Calculator lite or REBT Pro have ads?

Neither Electrical Calculator lite nor REBT Pro shows ads.

### Which is updated more often, Electrical Calculator lite or REBT Pro?

Electrical Calculator lite ships an update every 2 months, and REBT Pro every 2 weeks. Most recently, Electrical Calculator lite was updated on October 31, 2026 and REBT Pro on October 24, 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.*