# USEN Camera Viewer vs Preflop Range Builder

The clearest difference is ads: USEN Camera Viewer at none against Preflop Range Builder's shown. USEN Camera Viewer also leads on iOS requirement (11 vs 17.0). Preflop Range Builder's advantage is update cadence (every 8 days vs every 3 months). On price, 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.

USEN Camera Viewer ships an update every 3 months, Preflop Range Builder every 8 days. Both last shipped on October 13, 2026.

## The numbers

| Metric | USEN Camera Viewer | Preflop Range Builder |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 8 days** |
| Monetization | Free | — |
| Size | 58 MB | 4 MB |
| Requires iOS | **11** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [USEN](https://appshunter.io/developer/405001406) | [Seishin Miyaji](https://appshunter.io/developer/1324900707) |

## What reviewers say

### USEN Camera Viewer

[App page](https://appshunter.io/ios/app/usen-camera-viewer/id1542322703)

View security camera footage and in-store live streams from your smartphone. Capture video, set motion detection alarms, and remotely control pan and tilt functions for a wider view. Share live streams securely via QR code.

**Highlights:** Remote IP camera viewing, Motion detection alarms, Video capture and recording, Pan and tilt control, QR code live stream sharing, Multi-camera split-screen view

**Features:** Vision Pro support

**In-app purchases:** none


### Preflop Range Builder

[App page](https://appshunter.io/ios/app/preflop-range-builder/id6811308271)

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

**In-app purchases:** none


## Frequently asked questions

### Is USEN Camera Viewer free?

USEN Camera Viewer is free to download, with no in-app purchases.

### Is Preflop Range Builder free?

Preflop Range Builder is free to download, with no in-app purchases.

### Do USEN Camera Viewer or Preflop Range Builder have ads?

Preflop Range Builder shows ads; USEN Camera Viewer does not.

### Which is updated more often, USEN Camera Viewer or Preflop Range Builder?

USEN Camera Viewer ships an update every 3 months, and Preflop Range Builder every 8 days. Most recently, USEN Camera Viewer was updated on October 13, 2026 and Preflop Range Builder on October 13, 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.*