# Probability Toolkit vs Electricity

The clearest difference is update cadence: Probability Toolkit at every 10 months against Electricity's every 62 months. Electricity's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Probability Toolkit costs $1.99 and Electricity $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Probability Toolkit ships an update every 10 months, Electricity every 62 months. The most recent releases landed on October 19, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Probability Toolkit | Electricity |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 62 months |
| Size | 41 MB | 263 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [VIRTUAL FILAMENTS PRIVATE LIMITED](https://appshunter.io/developer/1474217212) |

## What reviewers say

### Probability Toolkit

[App page](https://appshunter.io/ios/app/probability-toolkit/id652216774)

**Features:** macOS Compatibility

**In-app purchases:** none


### Electricity

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Probability Toolkit free?

Probability Toolkit costs $1.99, with no in-app purchases.

### Is Electricity free?

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

### Do Probability Toolkit or Electricity have ads?

Neither Probability Toolkit nor Electricity shows ads.

### Which is updated more often, Probability Toolkit or Electricity?

Probability Toolkit ships an update every 10 months, and Electricity every 62 months. Most recently, Probability Toolkit was updated on October 19, 2026 and Electricity on October 4, 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.*