# Voltrelli vs E

The clearest difference is iOS requirement: E at 13.0 against Voltrelli's 15.1. 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.

Voltrelli ships an update every 10 days, E weekly. Both last shipped on September 17, 2026.

## The numbers

| Metric | Voltrelli | E |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Size | 85 MB | 76 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Smart Business & Technologies Solutions SRL](https://appshunter.io/developer/1650374230) | [LITE-ON TECHNOLOGY CORP.](https://appshunter.io/developer/511806419) |

## What reviewers say

### Voltrelli

[App page](https://appshunter.io/ios/app/voltrelli/id6443899578)

**Features:** macOS Compatibility

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-on-mobile/id6444123287)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Voltrelli free?

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

### Is E free?

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

### Do Voltrelli or E have ads?

Neither Voltrelli nor E shows ads.

### Which is updated more often, Voltrelli or E?

Voltrelli ships an update every 10 days, and E weekly. Most recently, Voltrelli was updated on September 17, 2026 and E on September 17, 2026.

---

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