# Solity Viewer vs True Solar Time （真太陽時）

The clearest difference is in-app purchases: Solity Viewer at none against True Solar Time （真太陽時）'s 1. Solity Viewer also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. True Solar Time （真太陽時） sells 1 one-off in-app purchase. Solity Viewer asks for nothing beyond the download.

## The numbers

| Metric | Solity Viewer | True Solar Time （真太陽時） |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 5 days |
| Size | 103 MB | 24 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [SOLITY CO., LTD.](https://appshunter.io/developer/1261813930) | [Tsz Fung Shing](https://appshunter.io/developer/1877613702) |

## What reviewers say

### Solity Viewer

[App page](https://appshunter.io/ios/app/solity-viewer/id6480092893)

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

**In-app purchases:** none


### True Solar Time （真太陽時）

[App page](https://appshunter.io/ios/app/true-solar-time/id6759240543)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 購買移除廣告 | $4.99 | one-time |


## Frequently asked questions

### Is Solity Viewer free?

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

### Is True Solar Time （真太陽時） free?

True Solar Time （真太陽時） is free to download, with in-app purchases available.

### Do Solity Viewer or True Solar Time （真太陽時） have ads?

True Solar Time （真太陽時） shows ads; Solity Viewer does not.

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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.*