# 4 vs Accsoon SEE

The clearest difference is price: Accsoon SEE at Free against 4's $4.99. Accsoon SEE also leads on iOS requirement (15.6 vs 17.0). 4's advantage is in-app purchases (none vs 5) and update cadence (every 4 days vs fortnightly). On ads and device support there is nothing between them.

Accsoon SEE is free to download; 4 costs $4.99 up front. Accsoon SEE sells 5 one-off in-app purchases. 4 asks for nothing beyond the download.

4 ships an update every 4 days, Accsoon SEE fortnightly. The most recent releases landed on October 31, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 4 | Accsoon SEE |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[3.4 (49 ratings)](https://appshunter.io/ios/app/accsoon-see/id6443441166/reviews)** |
| Number of ratings | — | **49** |
| Positive reviews | — | 47.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 198 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Upload Studio Ltd.](https://appshunter.io/developer/318563953) | [Chengdu Accsoon Technology Co., Ltd](https://appshunter.io/developer/1503113127) |

## What reviewers say

### 4

[App page](https://appshunter.io/ios/app/420/id327003892)

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

**In-app purchases:** none


### Accsoon SEE

[App page](https://appshunter.io/ios/app/accsoon-see/id6443441166)

Transform your phone into a professional video monitor, recorder, and live streamer. This app offers advanced monitoring tools, direct streaming to popular platforms, and HD video recording for easy sharing and editing.

**Highlights:** Professional video monitoring tools, Live streaming to platforms, HD video recording, Use phone as a monitor, Direct streaming from HDMI sources, Record to camera roll

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 | $0.99 | one-time |
| 50 | $0.99 | one-time |
| 200 | $2.99 | one-time |
| 500 | $6.99 | one-time |
| 1000 | $14.99 | one-time |

**What reviewers like**

- 👍 Great for live streaming
- 👍 Turns iPad into field monitor
- 👍 Useful for tethering
- 👍 Works with Sony a7C
- 👍 Professional monitoring features (histogram, focus peaking, false colors)

**What reviewers complain about**

- 🐛 Crashes during live stream
- 🐛 Freezes after a few seconds
- 🐛 Incompatible with iPhone 14 Pro Max
- 🐛 Black screen issues
- 🐛 Stopped working after firmware update

**Reported bugs**

- Black screen on iPhone 14 Pro Max
- Stopped working after firmware update
- Network error within the app
- Latest update causes crash on launch
- Buttons on edges of screen cut off on iPhone 15

**Requested features**

- Continue live streaming in background
- Expand functionality to Nikon and Fujifilm
- Add 360-degree rotation of image preview
- App remembers transmitter
- Allow scale adjustment for crosshairs


## Frequently asked questions

### Is 4 free?

4 costs $4.99, with no in-app purchases.

### Is Accsoon SEE free?

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

### Do 4 or Accsoon SEE have ads?

Neither 4 nor Accsoon SEE shows ads.

### Which is updated more often, 4 or Accsoon SEE?

4 ships an update every 4 days, and Accsoon SEE fortnightly. Most recently, 4 was updated on October 31, 2026 and Accsoon SEE 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.*