# Electrical Calculator lite vs Rehlko Power Plus

The clearest difference is in-app purchases: Rehlko Power Plus at none against Electrical Calculator lite's 2. Rehlko Power Plus also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Electrical Calculator lite sells 2 one-off in-app purchases. Rehlko Power Plus asks for nothing beyond the download.

Electrical Calculator lite ships an update every 2 months, Rehlko Power Plus every 2 weeks. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Electrical Calculator lite | Rehlko Power Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (581 ratings)](https://appshunter.io/ios/app/electrical-calculator-lite/id922903696/reviews)** | — |
| Number of ratings | **581** | — |
| Positive reviews | 39.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 49 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [DISCOVERY ENERGY, LLC](https://appshunter.io/developer/1791473545) |

## 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


### Rehlko Power Plus

[App page](https://appshunter.io/ios/app/rehlko-power-plus/id6781033628)

**In-app purchases:** none


## Frequently asked questions

### Is Electrical Calculator lite free?

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

### Is Rehlko Power Plus free?

Rehlko Power Plus is free to download, with no in-app purchases.

### Do Electrical Calculator lite or Rehlko Power Plus have ads?

Neither Electrical Calculator lite nor Rehlko Power Plus shows ads.

### Which is updated more often, Electrical Calculator lite or Rehlko Power Plus?

Electrical Calculator lite ships an update every 2 months, and Rehlko Power Plus every 2 weeks. Most recently, Electrical Calculator lite was updated on November 6, 2026 and Rehlko Power Plus on November 7, 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.*