# Voltie vs stormi

The clearest difference is iOS requirement: stormi at 15.6 against Voltie's 17.0. On price, update cadence, 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.

Voltie ships an update every 3 weeks, stormi every 2 weeks. The most recent releases landed on August 30, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Voltie | stormi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 41 MB | 112 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Voltie Kft.](https://appshunter.io/developer/1690550740) | [EVsOLUTION Kft.](https://appshunter.io/developer/1684257553) |

## What reviewers say

### Voltie

[App page](https://appshunter.io/ios/app/voltie/id6449769010)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### stormi

[App page](https://appshunter.io/ios/app/stormi/id6476964378)

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

**In-app purchases:** none


## Frequently asked questions

### Is Voltie free?

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

### Is stormi free?

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

### Do Voltie or stormi have ads?

Neither Voltie nor stormi shows ads.

### Which is updated more often, Voltie or stormi?

Voltie ships an update every 3 weeks, and stormi every 2 weeks. Most recently, Voltie was updated on August 30, 2026 and stormi on September 10, 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.*