# E Sentry Systems vs Leadsun Edge

The clearest difference is update cadence: E Sentry Systems at every 3 weeks against Leadsun Edge's every 2 months. Leadsun Edge's advantage is iOS requirement (9.0 vs 16.0). 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.

E Sentry Systems ships an update every 3 weeks, Leadsun Edge every 2 months. The most recent releases landed on November 7, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | E Sentry Systems | Leadsun Edge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 54 MB | 8 MB |
| Requires iOS | 16.0 | **9.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [IRISS Inc](https://appshunter.io/developer/1245323320) | [Leadsun Electronic Technology Co.,Ltd](https://appshunter.io/developer/959800104) |

## What reviewers say

### E Sentry Systems

[App page](https://appshunter.io/ios/app/e-sentry-systems/id6444192723)

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

**In-app purchases:** none


### Leadsun Edge

[App page](https://appshunter.io/ios/app/leadsun-edge/id6457950725)

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

**In-app purchases:** none


## Frequently asked questions

### Is E Sentry Systems free?

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

### Is Leadsun Edge free?

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

### Do E Sentry Systems or Leadsun Edge have ads?

Neither E Sentry Systems nor Leadsun Edge shows ads.

### Which is updated more often, E Sentry Systems or Leadsun Edge?

E Sentry Systems ships an update every 3 weeks, and Leadsun Edge every 2 months. Most recently, E Sentry Systems was updated on November 7, 2026 and Leadsun Edge on October 27, 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.*