# Electric Cost Calculator vs IntervAI

The clearest difference is price: Electric Cost Calculator at Free against IntervAI's $9.99. Electric Cost Calculator also leads on update cadence (every 4 days vs every 3 weeks). IntervAI's advantage is ads (none vs shown) and iOS requirement (15.0 vs 18.0). On in-app purchases and device support there is nothing between them.

Electric Cost Calculator is free to download; IntervAI costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Electric Cost Calculator ships an update every 4 days, IntervAI every 3 weeks. The most recent releases landed on October 18, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Electric Cost Calculator | IntervAI |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Size | 6 MB | 3 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [Mireia Lluch Ortola](https://appshunter.io/developer/1003230042) | [Yu Huang](https://appshunter.io/developer/1873873379) |

## What reviewers say

### Electric Cost Calculator

[App page](https://appshunter.io/ios/app/electric-cost-calculator/id6747753584)

**Features:** macOS Compatibility

**In-app purchases:** none


### IntervAI

[App page](https://appshunter.io/ios/app/intervai-interview-copilot/id6758596978)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Electric Cost Calculator free?

Electric Cost Calculator is free to download, with no in-app purchases.

### Is IntervAI free?

IntervAI costs $9.99, with no in-app purchases.

### Do Electric Cost Calculator or IntervAI have ads?

Electric Cost Calculator shows ads; IntervAI does not.

### Which is updated more often, Electric Cost Calculator or IntervAI?

Electric Cost Calculator ships an update every 4 days, and IntervAI every 3 weeks. Most recently, Electric Cost Calculator was updated on October 18, 2026 and IntervAI on October 5, 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.*