# TNAS mobile vs Sigma Timer

TNAS mobile and Sigma Timer are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | TNAS mobile | Sigma Timer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 10.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 122 MB | 20 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Noon Technology Company Limited](https://appshunter.io/developer/1219897352) | [Sigma Laborzentrifugen GmbH](https://appshunter.io/developer/1731355921) |

## What reviewers say

### 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


### Sigma Timer

[App page](https://appshunter.io/ios/app/sigma-timer/id6478013776)

**In-app purchases:** none


## Frequently asked questions

### Is TNAS mobile free?

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

### Is Sigma Timer free?

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

### Do TNAS mobile or Sigma Timer have ads?

Neither TNAS mobile nor Sigma Timer shows ads.

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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.*