# OBS vs RailDrishti (RDPMS)

The clearest difference is in-app purchases: RailDrishti (RDPMS) at none against OBS's 4. RailDrishti (RDPMS) also leads on update cadence (every 8 days vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OBS sells 4 in-app purchases, starting at $4.99 per 7 days. RailDrishti (RDPMS) asks for nothing beyond the download.

OBS ships an update every 7 months, RailDrishti (RDPMS) every 8 days. The most recent releases landed on September 23, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | OBS | RailDrishti (RDPMS) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (435 ratings)](https://appshunter.io/ios/app/obs-studio-camera/id6758282877/reviews)** | — |
| Number of ratings | **435** | — |
| Positive reviews | 10.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 41 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DREAMEE STUDIO COMPANY LIMITED](https://appshunter.io/developer/1869312159) | [BITCOMM TECHNOLOGIES PRIVATE LIMITED](https://appshunter.io/developer/1622370802) |

## What reviewers say

### OBS

[App page](https://appshunter.io/ios/app/obs-studio-camera/id6758282877)

Transform your iPhone or iPad into a high-quality webcam for OBS Studio. Connects instantly over your local network with no drivers or complex setup needed. Ideal for streamers, professionals, and presenters seeking stable video.

**Highlights:** Use iPhone/iPad as webcam for OBS, High quality, low latency video, Instant one-tap connection, Simple OBS integration, Works on macOS and Windows, No login or ads

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly camera access | $4.99 | per 7 days |
| Monthly camera access | $9.99 | per month |
| Yearly camera access | $14.99 | per year |
| Lifetime camera access | $17.99 | one-time |


### RailDrishti (RDPMS)

[App page](https://appshunter.io/ios/app/raildrishti-rdpms/id6767129461)

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

**In-app purchases:** none


## Frequently asked questions

### Is OBS free?

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

### Is RailDrishti (RDPMS) free?

RailDrishti (RDPMS) is free to download, with no in-app purchases.

### Do OBS or RailDrishti (RDPMS) have ads?

Neither OBS nor RailDrishti (RDPMS) shows ads.

### Which is updated more often, OBS or RailDrishti (RDPMS)?

OBS ships an update every 7 months, and RailDrishti (RDPMS) every 8 days. Most recently, OBS was updated on September 23, 2026 and RailDrishti (RDPMS) on September 17, 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.*