# TDSEE vs MERCUSYS

The clearest difference is review sentiment: MERCUSYS at 89% against TDSEE's 21%. MERCUSYS also leads on rating (4.8 vs 3.5) and ratings volume (793 vs 51). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. TDSEE sells 19 one-off in-app purchases and MERCUSYS sells 8 in-app purchases, starting at $3.49 per month. Whichever you choose, the download price is not the number that matters.

MERCUSYS holds the better App Store score, 4.8 against 3.5. That said, the two scores are not equally well evidenced: MERCUSYS has 793 ratings behind it against 51, so its average is the more settled of the two. Written reviews point the same way: 21% of TDSEE's written reviews are positive against 89% of MERCUSYS's.

TDSEE ships an update fortnightly, MERCUSYS every 3 weeks. The most recent releases landed on October 22, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | TDSEE | MERCUSYS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (51 ratings)](https://appshunter.io/ios/app/tdsee/id1515672765/reviews) | **[4.8 (793 ratings)](https://appshunter.io/ios/app/mercusys/id1539545426/reviews)** |
| Number of ratings | 51 | **793** |
| Positive reviews | 20.8% of reviews | **89.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 122 MB | 764 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Tenda Technology Co.,Ltd.](https://appshunter.io/developer/931811110) | [MERCUSYS Technologies Co., Ltd.](https://appshunter.io/developer/1816669928) |

## What reviewers say

### TDSEE

[App page](https://appshunter.io/ios/app/tdsee/id1515672765)

This application provides remote video monitoring capabilities for various smart devices. It offers features like smart tracking, alarm notifications, and two-way audio for comprehensive surveillance in homes, businesses, and warehouses.

**Highlights:** Video monitoring, Smart tracking, Alarm notification, Two-way audio, Video playback, Remote access

**Features:** Vision Pro support

**In-app purchases (19)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7 Days Detection 2 (1 month) | $2.99 | one-time |
| 7 Days Detection (1 month) | $3.99 | one-time |
| 7 Days Detection 2 (1 month) | $5.99 | one-time |
| 30 Days Detection 2 (1 month) | $6.99 | one-time |
| 30 Days Detection (1 month) | $9.99 | one-time |
| 7 Days Detection (1year) | $9.99 | one-time |
| 30 Days Detection 2 (1 month) | $15.95 | one-time |
| 7 Days Detection (2year) | $17.99 | one-time |
| 7 Days Detection (6 month) | $21.99 | one-time |
| 7 Days Detection 2 (12 months) | $22.99 | one-time |
| 7 Days Detection 2 (6 months) | $34.99 | one-time |
| 7 Days Detection (12 month) | $39.99 | one-time |
| 30 Days Detection 2 (6 months) | $39.99 | one-time |
| 30 Days Detection (2year) | $49.99 | one-time |
| 7 Days Detection 2 (12 months) | $59.90 | one-time |
| 30 Days Detection (6 month) | $59.99 | one-time |
| 7 Days Detection (forever) | $59.99 | one-time |
| 30 Days Detection 2 (12months) | $59.99 | one-time |
| 30 Days Detection (12month) | $99.99 | one-time |

**What reviewers like**

- 📹 Clear and bright video quality
- 🌙 Excellent night vision capability
- ⚡ Easy initial setup and installation
- 🔄 Remote camera control and management
- 🎥 Good recording and playback features

**What reviewers complain about**

- 🐛 Frequent app crashes and freezes
- 📡 Constant connectivity and offline issues
- ⚠️ False alarm notifications (motion/pet detection)
- 💸 Expensive cloud storage subscription
- 📱 Poor iPad/tablet optimization

**Reported bugs**

- App crashes on microphone activation
- Login verification loops and account recognition failures
- QR code scanning not working
- Camera shows offline despite being online
- Video playback shows 'no video' despite recordings existing

**Requested features**

- iPad/tablet optimized version
- Multi-camera grid/mosaic view
- Picture-in-picture mode
- Automated scheduling with day-of-week selection
- Multiple cloud storage provider options


### MERCUSYS

[App page](https://appshunter.io/ios/app/mercusys/id1539545426)

Easily set up and manage your mesh Wi-Fi system. The app guides you through installation, helps optimize unit placement for better coverage, and provides comprehensive control over your network. Enjoy faster, more reliable Wi-Fi throughout your home.

**Highlights:** Mesh Wi-Fi setup, Network management, Device connection monitoring, Guest network sharing, Website access restriction, Wi-Fi scheduling for devices, Device Wi-Fi priority control

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 Cam/month | $3.49 | per month |
| Premium 2 Cam/month | $6.99 | per month |
| Premium 3 Cam/month | $10.49 | per month |
| Premium 10 Cam/month | $11.99 | per month |
| Premium 1 Cam/year | $34.99 | per year |
| Premium 2 Cam/year | $69.99 | per year |
| Premium 3 Cam/year | $104.99 | per year |
| Premium 10 Cam/year | $119.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Fast and reliable
- 💡 Helpful app features
- 🔒 Good security and parental controls
- 🌐 Excellent WiFi coverage and connectivity

**What reviewers complain about**

- 🐛 Occasional app crashes or bugs
- 🔌 Limited functionality in certain modes
- 📱 App could use more customization options
- 🔍 Difficulty identifying connected devices

**Reported bugs**

- App sometimes fails to detect or connect to router
- Inconsistent performance after firmware updates
- Difficulty renaming or customizing mesh nodes

**Requested features**

- Add dark mode option
- Improve device management and monitoring
- Implement automatic network optimization
- Provide more granular parental control settings


## Frequently asked questions

### Is TDSEE free?

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

### Is MERCUSYS free?

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

### Which has better reviews, TDSEE or MERCUSYS?

MERCUSYS is rated higher. TDSEE averages 3.5 out of 5 from 51 ratings, while MERCUSYS averages 4.8 from 793 ratings.

### Do TDSEE or MERCUSYS have ads?

Neither TDSEE nor MERCUSYS shows ads.

### Which is updated more often, TDSEE or MERCUSYS?

TDSEE ships an update fortnightly, and MERCUSYS every 3 weeks. Most recently, TDSEE was updated on October 22, 2026 and MERCUSYS 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.*