# Fisherman's Watch vs SiriusGPS

The clearest difference is in-app purchases: SiriusGPS at none against Fisherman's Watch's 4. SiriusGPS also leads on ads (none vs shown) and update cadence (every 4 months vs every 38 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Fisherman's Watch sells 4 one-off in-app purchases. SiriusGPS asks for nothing beyond the download.

Fisherman's Watch ships an update every 38 months, SiriusGPS every 4 months. The most recent releases landed on October 17, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Fisherman's Watch | SiriusGPS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (16 ratings)](https://appshunter.io/ios/app/fishermans-watch/id968740417/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 13.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 38 months | **Every 4 months** |
| Monetization | Free with in-app purchases | — |
| Size | 75 MB | 37 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Web and Print](https://appshunter.io/developer/517696765) | [Amine Fellahi](https://appshunter.io/developer/1542759641) |

## What reviewers say

### Fisherman's Watch

[App page](https://appshunter.io/ios/app/fishermans-watch/id968740417)

Predicts fishing success based on weather, sun, and moon cycles. It uses mathematical models for over 300 fish species to suggest optimal fishing times. Users can customize which factors influence the forecast.

**Highlights:** Fishing success prediction, Weather, sun, and moon influence, Mathematical models for 300+ fish species, Optimal fishing time suggestions, Customizable forecast factors, Regional fish packages

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fishes of Europe and Asia | $1.99 | one-time |
| Fishes of North America | $1.99 | one-time |
| Fishes of the seas and oceans | $1.99 | one-time |
| All-in-one | $4.99 | one-time |


### SiriusGPS

[App page](https://appshunter.io/ios/app/siriusgps/id1542759639)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fisherman's Watch free?

Fisherman's Watch is free to download, with in-app purchases available.

### Is SiriusGPS free?

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

### Do Fisherman's Watch or SiriusGPS have ads?

Fisherman's Watch shows ads; SiriusGPS does not.

### Which is updated more often, Fisherman's Watch or SiriusGPS?

Fisherman's Watch ships an update every 38 months, and SiriusGPS every 4 months. Most recently, Fisherman's Watch was updated on October 17, 2026 and SiriusGPS on October 27, 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.*