# Tag Station vs ONWATT

The clearest difference is price: ONWATT at Free against Tag Station's $1.49. ONWATT also leads on iOS requirement (14.0 vs 16.0). Tag Station's advantage is device support (4 vs 2). On ads and in-app purchases there is nothing between them.

ONWATT is free to download; Tag Station costs $1.49 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Tag Station | ONWATT |
| --- | --- | --- |
| Price | $1.49 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tag-station/id1660279964/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Paid | — |
| Size | 5 MB | 156 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pave Vaisanen](https://appshunter.io/developer/1436321813) | [Alpha ESS Co., Ltd.](https://appshunter.io/developer/1088168712) |

## What reviewers say

### Tag Station

[App page](https://appshunter.io/ios/app/tag-station/id1660279964)

Monitor Ruuvi-sensors on all your Apple devices. View temperature, humidity, and air pressure at a glance. Data syncs automatically across your iPhone, iPad, Mac, and Apple Watch via iCloud.

**Highlights:** Ruuvi-sensor monitoring, Temperature, humidity, air pressure display, Cross-device iCloud sync, Apple Watch complications, Optimized user interface

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### ONWATT

[App page](https://appshunter.io/ios/app/onwatt/id6779455028)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tag Station free?

Tag Station costs $1.49, with no in-app purchases.

### Is ONWATT free?

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

### Do Tag Station or ONWATT have ads?

Neither Tag Station nor ONWATT 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.*