# Temtop vs TNAS mobile

The clearest difference is rating: Temtop at 2.9 against TNAS mobile's 1.0. Temtop also leads on ratings volume (82 vs 1) and review sentiment (32% vs 10%). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Temtop holds the better App Store score, 2.9 against 1.0. That said, the two scores are not equally well evidenced: Temtop has 82 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 32% of Temtop's written reviews are positive against 10% of TNAS mobile's.

Temtop ships an update every 5 weeks, TNAS mobile every 2 months. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Temtop | TNAS mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (82 ratings)](https://appshunter.io/ios/app/temtop/id1439409326/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/tnas-mobile/id6443591966/reviews) |
| Number of ratings | **82** | 1 |
| Positive reviews | **32.2% of reviews** | 10.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 183 MB | 122 MB |
| Requires iOS | **15** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Elitech Technology,Inc.](https://appshunter.io/developer/1455057713) | [Noon Technology Company Limited](https://appshunter.io/developer/1219897352) |

## What reviewers say

### Temtop

[App page](https://appshunter.io/ios/app/temtop/id1439409326)

This app detects formaldehyde, PM2.5, and TVOC using advanced sensors. It provides accurate and reliable environmental data for your home or workspace.

**Highlights:** Formaldehyde detection, PM2.5 detection, TVOC detection, British Dart electrochemical sensor, US TEMTOP laser particle sensor, Accurate and reliable data

**Features:** Vision Pro support

**In-app purchases:** none


### TNAS mobile

[App page](https://appshunter.io/ios/app/tnas-mobile/id6443591966)

Access and manage your TerraMaster NAS devices from your mobile phone. Back up photos and videos, browse documents, and stream multimedia files remotely or locally.

**Highlights:** Remote NAS access, Local NAS access, Photo and video backup, Document browsing, File upload/download, Multimedia playback, Device management

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 User-friendly for admin tasks
- 👍 Intuitive interface for file access
- 👍 Reliable remote access
- 👍 Good for quick system overview
- 👍 Works well for some users

**What reviewers complain about**

- 🐛 Frequent crashing
- 🐛 Connection issues (cannot connect, drops signal)
- 🐛 Backup failures (photos, videos, .mov files)
- 🔋 High battery consumption
- 🐌 Slow or unresponsive performance

**Reported bugs**

- App crashes on startup
- App crashes when connected to network
- App crashes when backing up photos/videos
- App freezes during backup
- Cannot connect to NAS

**Requested features**

- Add display of desktop shortcuts and apps
- Improve user-friendliness and navigation
- Add iPad support
- Allow uploading more than 99 files at a time
- Add 'select all' option for uploads


## Frequently asked questions

### Is Temtop free?

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

### Is TNAS mobile free?

TNAS mobile is free to download, with no in-app purchases.

### Which has better reviews, Temtop or TNAS mobile?

Temtop is rated higher. Temtop averages 2.9 out of 5 from 82 ratings, while TNAS mobile averages 1.0 from 1 ratings.

### Do Temtop or TNAS mobile have ads?

Neither Temtop nor TNAS mobile shows ads.

### Which is updated more often, Temtop or TNAS mobile?

Temtop ships an update every 5 weeks, and TNAS mobile every 2 months. Most recently, Temtop was updated on October 24, 2026 and TNAS mobile on October 20, 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.*