# Voltage Drop. vs Interval

The clearest difference is device support: Voltage Drop. at 3 against Interval's 1. Voltage Drop. also leads on iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Voltage Drop. | Interval |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 18 MB | 0 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Eyup Ensar ORAL](https://appshunter.io/developer/6772512446) | [Matthew Donders](https://appshunter.io/developer/1871614032) |

## What reviewers say

### Voltage Drop.

[App page](https://appshunter.io/ios/app/voltage-drop/id6780509345)

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

**In-app purchases:** none


### Interval

[App page](https://appshunter.io/ios/app/interval-spacing-calculator/id6809219678)

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

**In-app purchases:** none


## Frequently asked questions

### Is Voltage Drop. free?

Voltage Drop. is free to download, with no in-app purchases.

### Is Interval free?

Interval is free to download, with no in-app purchases.

### Do Voltage Drop. or Interval have ads?

Neither Voltage Drop. nor Interval shows ads.

---

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