# Tide Chart USA vs Sun ETA

The clearest difference is update cadence: Sun ETA at daily against Tide Chart USA's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Tide Chart USA ships an update every 5 months, Sun ETA daily. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Tide Chart USA | Sun ETA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (8.2K ratings)](https://appshunter.io/ios/app/tide-chart-usa/id593308377/reviews)** | — |
| Number of ratings | **8.2K** | — |
| Positive reviews | 68.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Daily** |
| Monetization | Ad-supported | — |
| Size | 9 MB | 31 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [hanitaro](https://appshunter.io/developer/500375118) | [Skiily LLC](https://appshunter.io/developer/1413607102) |

## What reviewers say

### Tide Chart USA

[App page](https://appshunter.io/ios/app/tide-chart-usa/id593308377)

Access detailed tidal information for various locations. This app is designed for recreational fishing enthusiasts, providing essential data for planning your next outing. It is intended for personal use and not for commercial navigation.

**Highlights:** Tidal information display, Designed for fishing, Recreational use, No warranty provided

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent tide chart
- 👍 Easy to read and understand
- 👍 Useful for boating, fishing, and other activities
- 👍 Accurate and reliable
- 👍 Simple and visually appealing

**What reviewers complain about**

- 🐛 Location issues - app defaults to wrong location
- 🐛 Inaccurate tide information in some areas
- 🐛 Unable to change or add locations
- 🐛 Daylight saving time not handled properly
- 🐛 Tide chart not detailed enough in some areas

**Reported bugs**

- Tide information off by an hour
- App gets stuck in wrong location
- Spelling errors in the app
- Incompatible with some devices

**Requested features**

- Ability to scroll backwards in time
- Extend timeline further into the future
- Add more location options
- Include current weather and conditions
- Provide a widget for the lock screen


### Sun ETA

[App page](https://appshunter.io/ios/app/sun-eta/id6761353487)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tide Chart USA free?

Tide Chart USA is free to download, with no in-app purchases.

### Is Sun ETA free?

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

### Do Tide Chart USA or Sun ETA have ads?

Both Tide Chart USA and Sun ETA show ads.

### Which is updated more often, Tide Chart USA or Sun ETA?

Tide Chart USA ships an update every 5 months, and Sun ETA daily. Most recently, Tide Chart USA was updated on October 29, 2026 and Sun ETA on October 31, 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.*