# TopDirector (NDI,SRT,UVC,RTSP) vs Obsbot Start

The clearest difference is rating: TopDirector (NDI,SRT,UVC,RTSP) at 4.1 against Obsbot Start's 2.2. TopDirector (NDI,SRT,UVC,RTSP) also leads on review sentiment (38% vs 19%) and update cadence (every 10 days vs monthly). Obsbot Start's advantage is in-app purchases (none vs 10) and iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. TopDirector (NDI,SRT,UVC,RTSP) sells 10 in-app purchases, starting at $49.99 per year. Obsbot Start asks for nothing beyond the download.

TopDirector (NDI,SRT,UVC,RTSP) holds the better App Store score, 4.1 against 2.2. Both are backed by a comparable volume of ratings — 114 and 25 respectively. Written reviews point the same way: 38% of TopDirector (NDI,SRT,UVC,RTSP)'s written reviews are positive against 19% of Obsbot Start's.

TopDirector (NDI,SRT,UVC,RTSP) ships an update every 10 days, Obsbot Start monthly. Both last shipped on November 3, 2026.

## The numbers

| Metric | TopDirector (NDI,SRT,UVC,RTSP) | Obsbot Start |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (114 ratings)](https://appshunter.io/ios/app/topdirector-ndisrtuvcrtsp/id1581209932/reviews)** | [2.2 (25 ratings)](https://appshunter.io/ios/app/obsbot-start/id6449997281/reviews) |
| Number of ratings | **114** | 25 |
| Positive reviews | **37.5% of reviews** | 19.4% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Monthly |
| Monetization | Paid | **Free** |
| Size | 98 MB | 131 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TopDirector Corporation](https://appshunter.io/developer/1581209934) | [Remo Tech Co.,Ltd](https://appshunter.io/developer/1429660022) |

## What reviewers say

### TopDirector (NDI,SRT,UVC,RTSP)

[App page](https://appshunter.io/ios/app/topdirector-ndisrtuvcrtsp/id1581209932)

This app allows users to switch between multiple video sources, including external cameras and built-in device cameras, for live streaming and recording. It offers advanced features like real-time transitions, overlays, picture-in-picture effects, and remote control capabilities.

**Highlights:** Multicam switching (up to 9 inputs), Supports NDI, SRT, UVC, RTSP protocols, Real-time transitions and playback, Customizable overlays (titles, logos, clock), Picture-in-picture effects, Remote title overlay via LAN, Live sports slow-motion playback

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $49.99 | per year |
| NDI and TALLY | $4.99 | one-time |
| Enable USB(UVC) Camera Input | $4.99 | one-time |
| Screen Mirroring/AirPlay | $9.99 | one-time |
| PTZ Camera Control | $9.99 | one-time |
| Picture in Picture Watermark | $14.99 | one-time |
| Logo and Background Music | $14.99 | one-time |
| Video Scopes, Color Grading | $14.99 | one-time |
| UTitle, Title, NTitle, SuperFG | $14.99 | one-time |
| Unlimited PGM Duration | $14.99 | one-time |

**What reviewers like**

- 💡 Game-changer for portable churches
- 💡 Zero wires, no tangled mess
- 💡 Flexible upgrades, not forced bloat
- 💡 Saves money compared to traditional setups
- 💡 Bluetooth video switcher integration

**What reviewers complain about**

- 💸 Hidden pricing, very expensive
- 💸 Burned money, no refund
- 💸 Waste of money
- 💸 Not a cheap app with IAPs
- 💸 Expensive product

**Reported bugs**

- Crashes at opening on iPad Pro M2
- iPad camera always 30fps despite correct config
- App freezes when syncing iPad Pro with iPhone
- App crashes every time after latest update
- App won't open if 'Don't allow' is selected for album access

**Requested features**

- PIP templates with square or round screens
- Scrolling text in overlays
- Ability to replay, back-forward, adjust speed, freeze
- RTMP input support
- OSC control for Stream Decks


### Obsbot Start

[App page](https://appshunter.io/ios/app/obsbot-start/id6449997281)

Control your OBSBOT camera with an intuitive interface. Enhance your livestreaming experience by unleashing AI capabilities, easily switching between landscape and portrait modes, and customizing image parameters on the fly. Stream to popular social platforms with a single tap.

**Highlights:** AI feature control, One-click landscape/portrait switching, Customizable image parameters, Direct social platform streaming, Easy-to-use interface

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

**In-app purchases:** none


## Frequently asked questions

### Is TopDirector (NDI,SRT,UVC,RTSP) free?

TopDirector (NDI,SRT,UVC,RTSP) is free to download, with in-app purchases available.

### Is Obsbot Start free?

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

### Which has better reviews, TopDirector (NDI,SRT,UVC,RTSP) or Obsbot Start?

TopDirector (NDI,SRT,UVC,RTSP) is rated higher. TopDirector (NDI,SRT,UVC,RTSP) averages 4.1 out of 5 from 114 ratings, while Obsbot Start averages 2.2 from 25 ratings.

### Do TopDirector (NDI,SRT,UVC,RTSP) or Obsbot Start have ads?

Neither TopDirector (NDI,SRT,UVC,RTSP) nor Obsbot Start shows ads.

### Which is updated more often, TopDirector (NDI,SRT,UVC,RTSP) or Obsbot Start?

TopDirector (NDI,SRT,UVC,RTSP) ships an update every 10 days, and Obsbot Start monthly. Most recently, TopDirector (NDI,SRT,UVC,RTSP) was updated on November 3, 2026 and Obsbot Start on November 3, 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.*