# Cuprum Charging vs e

The clearest difference is update cadence: e at every 4 weeks against Cuprum Charging's every 8 months. e also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Cuprum Charging ships an update every 8 months, e every 4 weeks. The most recent releases landed on November 8, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Cuprum Charging | e |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 weeks** |
| Size | 14 MB | 67 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Cuprum Charging USA Inc.](https://appshunter.io/developer/1769093739) | [Center for Research in Perspective Technologies - Armenia LLC](https://appshunter.io/developer/1706506047) |

## What reviewers say

### Cuprum Charging

[App page](https://appshunter.io/ios/app/cuprum-charging/id6695725622)

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

**In-app purchases:** none


### e

[App page](https://appshunter.io/ios/app/e-mark-scan-and-verify/id6764100086)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cuprum Charging free?

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

### Is e free?

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

### Do Cuprum Charging or e have ads?

Neither Cuprum Charging nor e shows ads.

### Which is updated more often, Cuprum Charging or e?

Cuprum Charging ships an update every 8 months, and e every 4 weeks. Most recently, Cuprum Charging was updated on November 8, 2026 and e on November 9, 2026.

---

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