# E vs Lumen

The clearest difference is in-app purchases: E at none against Lumen's 1. E also leads on device support (3 vs 1) and iOS requirement (7.1 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Lumen sells 1 one-off in-app purchase. E asks for nothing beyond the download.

E ships an update every 9 days, Lumen every 6 days. The most recent releases landed on November 6, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | E | Lumen |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 6 days** |
| Monetization | Free | — |
| Size | 28 MB | 17 MB |
| Requires iOS | **7.1** | 17.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [国华 章](https://appshunter.io/developer/1144430023) | [Mario Steenbergen](https://appshunter.io/developer/1896445967) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-cam4k/id1144430024)

View and manage footage from Wi-Fi-enabled action cameras in real-time. Control recording settings, browse media, and share directly to social media. Compatible with Sharper Image action cameras.

**Highlights:** Live HD footage viewing, Camera recording control, Photo and video capture settings, Media browsing and download, Direct social media posting

**Features:** macOS Compatibility

**In-app purchases:** none


### Lumen

[App page](https://appshunter.io/ios/app/lumen-ai-camera/id6769420043)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lumen Pro | $6.99 | one-time |


## Frequently asked questions

### Is E free?

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

### Is Lumen free?

Lumen is free to download, with in-app purchases available.

### Do E or Lumen have ads?

Neither E nor Lumen shows ads.

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

E ships an update every 9 days, and Lumen every 6 days. Most recently, E was updated on November 6, 2026 and Lumen on November 11, 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.*