# 专业测量仪 vs Solara Horizon

The clearest difference is price: Solara Horizon at Free against 专业测量仪's $0.99. 专业测量仪's advantage is update cadence (every 5 days vs monthly). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Solara Horizon is free to download; 专业测量仪 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

专业测量仪 ships an update every 5 days, Solara Horizon monthly. The most recent releases landed on October 8, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 专业测量仪 | Solara Horizon |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Size | 123 MB | 33 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [小飞 刘](https://appshunter.io/developer/1679472128) | [广州光远联控智能科技有限公司](https://appshunter.io/developer/1863154178) |

## What reviewers say

### 专业测量仪

[App page](https://appshunter.io/ios/app/id6449776548)

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

**In-app purchases:** none


### Solara Horizon

[App page](https://appshunter.io/ios/app/solara-horizon/id6756836388)

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

**In-app purchases:** none


## Frequently asked questions

### Is 专业测量仪 free?

专业测量仪 costs $0.99, with no in-app purchases.

### Is Solara Horizon free?

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

### Do 专业测量仪 or Solara Horizon have ads?

Neither 专业测量仪 nor Solara Horizon shows ads.

### Which is updated more often, 专业测量仪 or Solara Horizon?

专业测量仪 ships an update every 5 days, and Solara Horizon monthly. Most recently, 专业测量仪 was updated on October 8, 2026 and Solara Horizon on October 5, 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.*