# PNW Current Atlas vs TideWorld

The clearest difference is price: PNW Current Atlas at Free against TideWorld's $1.99. PNW Current Atlas also leads on iOS requirement (9.0 vs 12.0). TideWorld's advantage is in-app purchases (none vs 2) and update cadence (every 4 weeks vs every 11 months). On ads and device support there is nothing between them.

PNW Current Atlas is free to download; TideWorld costs $1.99 up front. PNW Current Atlas sells 2 one-off in-app purchases. TideWorld asks for nothing beyond the download.

PNW Current Atlas ships an update every 11 months, TideWorld every 4 weeks. The most recent releases landed on October 20, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | PNW Current Atlas | TideWorld |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[3.5 (33 ratings)](https://appshunter.io/ios/app/pnw-current-atlas/id1456020312/reviews)** | — |
| Number of ratings | **33** | — |
| Positive reviews | 41.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 58 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TinyOctopus, LLC](https://appshunter.io/developer/507385773) | [Christian Guine](https://appshunter.io/developer/1636112507) |

## What reviewers say

### PNW Current Atlas

[App page](https://appshunter.io/ios/app/pnw-current-atlas/id1456020312)

Access detailed current prediction charts for the Pacific Northwest, covering regions like the Juan de Fuca Strait and San Juan Islands. View any date or time within the current year with free yearly updates, and use the app offline.

**Highlights:** View past/future date/time predictions, Daylight savings time correction, Jump to 'Now' prediction, Swipe/tap to move through time, Zoomable prediction details, Offline functionality, Free yearly updates

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-Day Free Trial | Free | one-time |
| Current Atlas unlimited access | $19.99 | one-time |


### TideWorld

[App page](https://appshunter.io/ios/app/tideworld/id6443661001)

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

**In-app purchases:** none


## Frequently asked questions

### Is PNW Current Atlas free?

PNW Current Atlas is free to download, with in-app purchases available.

### Is TideWorld free?

TideWorld costs $1.99, with no in-app purchases.

### Do PNW Current Atlas or TideWorld have ads?

Neither PNW Current Atlas nor TideWorld shows ads.

### Which is updated more often, PNW Current Atlas or TideWorld?

PNW Current Atlas ships an update every 11 months, and TideWorld every 4 weeks. Most recently, PNW Current Atlas was updated on October 20, 2026 and TideWorld on October 9, 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.*