# TideSync vs Fishare

The clearest difference is in-app purchases: TideSync at none against Fishare's 2. Fishare's advantage is update cadence (every 2 days vs every 3 weeks) and device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. Fishare sells 2 in-app purchases, starting at $8.99 per month. TideSync asks for nothing beyond the download.

TideSync ships an update every 3 weeks, Fishare every 2 days. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | TideSync | Fishare |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tidesync/id6760349625/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 17 MB | 365 MB |
| Requires iOS | 26.2 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Xinyu Hong](https://appshunter.io/developer/1883449097) | [Oli-Mikael Vaittinen](https://appshunter.io/developer/6783726941) |

## What reviewers say

### TideSync

[App page](https://appshunter.io/ios/app/tidesync/id6760349625)

This utility tool provides precise marine data for ocean enthusiasts, including tides, weather, and solunar information. It offers offline global data and a native, interactive user experience.

**Highlights:** Global offline tide data, Pro marine weather charts, Interactive forecast charts, Solunar timings and moon phases, Native iOS experience, Haptic feedback

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

**In-app purchases:** none


### Fishare

[App page](https://appshunter.io/ios/app/fishare-offshore-sst-charts/id6783726939)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fishare Pro | $8.99 | per month |
| Fishare Pro | $79.99 | per year |


## Frequently asked questions

### Is TideSync free?

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

### Is Fishare free?

Fishare is free to download, with in-app purchases available.

### Do TideSync or Fishare have ads?

Neither TideSync nor Fishare shows ads.

### Which is updated more often, TideSync or Fishare?

TideSync ships an update every 3 weeks, and Fishare every 2 days. Most recently, TideSync was updated on October 31, 2026 and Fishare on November 10, 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.*