# xTraMarlinXP vs SmartFish US

The clearest difference is update cadence: xTraMarlinXP at every 2 weeks against SmartFish US's every 7 months. SmartFish US's advantage is iOS requirement (12.0 vs 15.0). 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.

xTraMarlinXP ships an update every 2 weeks, SmartFish US every 7 months. The most recent releases landed on October 12, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | xTraMarlinXP | SmartFish US |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (6 ratings)](https://appshunter.io/ios/app/smartfish-us/id1451605163/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 7 months |
| Monetization | — | Free |
| Size | 62 MB | 42 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Krzysztof Magrel](https://appshunter.io/developer/1434344754) | [Wade Bales](https://appshunter.io/developer/1451605162) |

## What reviewers say

### xTraMarlinXP

[App page](https://appshunter.io/ios/app/xtramarlinxp/id1434344755)

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

**In-app purchases:** none


### SmartFish US

[App page](https://appshunter.io/ios/app/smartfish-us/id1451605163)

This app helps anglers assess largemouth bass health by calculating relative weight, a crucial metric for fishery management. It offers data logging to save catch and harvest information for later analysis and strategic decision-making.

**Highlights:** Relative weight calculation for largemouth bass, Data logging for catch and harvest, Supports fishery management strategies, Automatic data saving, Downloadable catch data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is xTraMarlinXP free?

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

### Is SmartFish US free?

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

### Do xTraMarlinXP or SmartFish US have ads?

Neither xTraMarlinXP nor SmartFish US shows ads.

### Which is updated more often, xTraMarlinXP or SmartFish US?

xTraMarlinXP ships an update every 2 weeks, and SmartFish US every 7 months. Most recently, xTraMarlinXP was updated on October 12, 2026 and SmartFish US on October 8, 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.*