# 投屏助手 vs 潮汐时间表

The clearest difference is in-app purchases: 投屏助手 at none against 潮汐时间表's 6. 投屏助手 also leads on rating (4.1 vs 3.8). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. 潮汐时间表 sells 6 in-app purchases, starting at $2.99 per month. 投屏助手 asks for nothing beyond the download.

投屏助手 holds the better App Store score, 4.1 against 3.8. Both are backed by a comparable volume of ratings — 14 and 12 respectively.

投屏助手 ships an update every 6 weeks, 潮汐时间表 every 5 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 投屏助手 | 潮汐时间表 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (14 ratings)](https://appshunter.io/ios/app/id1357448819/reviews)** | [3.8 (12 ratings)](https://appshunter.io/ios/app/id6467822767/reviews) |
| Number of ratings | **14** | 12 |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 51 MB | 49 MB |
| Requires iOS | **12.1** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [曙光 王](https://appshunter.io/developer/1388169536) | [Fingertip Jusheng (Taiyuan) Network Technology Co. LTD](https://appshunter.io/developer/1687910061) |

## What reviewers say

### 投屏助手

[App page](https://appshunter.io/ios/app/id1357448819)

Easily cast your phone's local videos, pictures, and files to your TV for a better viewing experience. Supports various devices and special wallpapers for occasions.

**Highlights:** Cast local videos and images, Cast local files, Connect to multiple devices, Special occasion wallpapers, Free to use

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

**In-app purchases:** none


### 潮汐时间表

[App page](https://appshunter.io/ios/app/id6467822767)

This app provides detailed tidal forecasts, wind and wave predictions, and sunrise/sunset times for coastal activities. It helps users plan fishing trips, beachcombing excursions, and water sports by identifying optimal times and avoiding hazardous conditions.

**Highlights:** 7-day tidal forecasts, Wind and wave predictions, Sunrise and sunset times, Best fishing/beachcombing times, Nearby pier recommendations, Minute-level tide predictions

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $2.99 | per month |
| 季度会员 | $3.99 | per 3 months |
| 年度会员 | $4.99 | per year |
| 月会员 | $9.99 | per month |
| 季会员 | $14.99 | per 3 months |
| 年会员 | $19.99 | per year |


## Frequently asked questions

### Is 投屏助手 free?

投屏助手 is free to download, with no in-app purchases.

### Is 潮汐时间表 free?

潮汐时间表 is free to download, with in-app purchases available.

### Which has better reviews, 投屏助手 or 潮汐时间表?

投屏助手 is rated higher. 投屏助手 averages 4.1 out of 5 from 14 ratings, while 潮汐时间表 averages 3.8 from 12 ratings.

### Do 投屏助手 or 潮汐时间表 have ads?

Both 投屏助手 and 潮汐时间表 show ads.

### Which is updated more often, 投屏助手 or 潮汐时间表?

投屏助手 ships an update every 6 weeks, and 潮汐时间表 every 5 weeks. Most recently, 投屏助手 was updated on November 2, 2026 and 潮汐时间表 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.*