# 蓝天天气预报 HD vs 计算器专业版

The clearest difference is price: 蓝天天气预报 HD at Free against 计算器专业版's $0.99. 蓝天天气预报 HD also leads on in-app purchases (none vs 10) and ads (none vs shown). 计算器专业版's advantage is update cadence (every 3 months vs every 31 months). On device support there is nothing between them.

蓝天天气预报 HD is free to download; 计算器专业版 costs $0.99 up front. 计算器专业版 sells 10 one-off in-app purchases. 蓝天天气预报 HD asks for nothing beyond the download.

蓝天天气预报 HD ships an update every 31 months, 计算器专业版 every 3 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 蓝天天气预报 HD | 计算器专业版 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 31 months | **Every 3 months** |
| Size | 38 MB | 57 MB |
| Requires iOS | **8.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UTA Information & technology Co., Ltd.](https://appshunter.io/developer/635229974) | [晓峰 左](https://appshunter.io/developer/1357603673) |

## What reviewers say

### 蓝天天气预报 HD

[App page](https://appshunter.io/ios/app/hd/id880931422)

**Features:** macOS Compatibility

**In-app purchases:** none


### 计算器专业版

[App page](https://appshunter.io/ios/app/id1627645755)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 12元套餐1 | $0.99 | one-time |
| 6元套餐1 | $0.99 | one-time |
| 6元套餐2 | $0.99 | one-time |
| 12元套餐2 | $1.99 | one-time |
| 12元套餐3 | $1.99 | one-time |
| 12元套餐5 | $1.99 | one-time |
| 12元套餐4 | $1.99 | one-time |
| 12元套餐6 | $1.99 | one-time |
| 12元套餐7 | $1.99 | one-time |
| 12元套餐8 | $1.99 | one-time |


## Frequently asked questions

### Is 蓝天天气预报 HD free?

蓝天天气预报 HD is free to download, with no in-app purchases.

### Is 计算器专业版 free?

计算器专业版 costs $0.99, and also offers in-app purchases.

### Do 蓝天天气预报 HD or 计算器专业版 have ads?

计算器专业版 shows ads; 蓝天天气预报 HD does not.

### Which is updated more often, 蓝天天气预报 HD or 计算器专业版?

蓝天天气预报 HD ships an update every 31 months, and 计算器专业版 every 3 months. Most recently, 蓝天天气预报 HD was updated on November 6, 2026 and 计算器专业版 on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*