# 易拉开门助手 vs 火箭发射预报

The clearest difference is price: 易拉开门助手 at Free against 火箭发射预报's $2.99. 易拉开门助手 also leads on update cadence (every 2 days vs every 10 days). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

易拉开门助手 is free to download; 火箭发射预报 costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

易拉开门助手 ships an update every 2 days, 火箭发射预报 every 10 days. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 易拉开门助手 | 火箭发射预报 |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 10 days |
| Size | 3 MB | 166 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [建峰 李](https://appshunter.io/developer/1697107628) | [建荣 金](https://appshunter.io/developer/6798779315) |

## What reviewers say

### 易拉开门助手

[App page](https://appshunter.io/ios/app/id6464450214)

**In-app purchases:** none


### 火箭发射预报

[App page](https://appshunter.io/ios/app/id6799094888)

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

**In-app purchases:** none


## Frequently asked questions

### Is 易拉开门助手 free?

易拉开门助手 is free to download, with no in-app purchases.

### Is 火箭发射预报 free?

火箭发射预报 costs $2.99, with no in-app purchases.

### Do 易拉开门助手 or 火箭发射预报 have ads?

Neither 易拉开门助手 nor 火箭发射预报 shows ads.

### Which is updated more often, 易拉开门助手 or 火箭发射预报?

易拉开门助手 ships an update every 2 days, and 火箭发射预报 every 10 days. Most recently, 易拉开门助手 was updated on October 12, 2026 and 火箭发射预报 on October 16, 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.*