# Electricity vs e++ Probability

The clearest difference is price: e++ Probability at Free against Electricity's $1.99. Electricity's advantage is device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

e++ Probability is free to download; Electricity costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Electricity | e++ Probability |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 62 months | — |
| Size | 263 MB | 30 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [VIRTUAL FILAMENTS PRIVATE LIMITED](https://appshunter.io/developer/1474217212) | [Modern Educational Research Society, LTD](https://appshunter.io/developer/432268704) |

## What reviewers say

### Electricity

[App page](https://appshunter.io/ios/app/electricity-edutech-era/id1537222849)

**Features:** macOS Compatibility

**In-app purchases:** none


### e++ Probability

[App page](https://appshunter.io/ios/app/e-plus-plus-probability/id1564855389)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Electricity free?

Electricity costs $1.99, with no in-app purchases.

### Is e++ Probability free?

e++ Probability is free to download, with no in-app purchases.

### Do Electricity or e++ Probability have ads?

Neither Electricity nor e++ Probability shows ads.

---

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