# ScaleScience: Fishing Logbook — Fish Weight & Catch Logbook

> Fish weight calculator and digital catch logbook for anglers. (iPhone/iPad app by BFT LLC.)

- Source: https://appshunter.io/ios/app/scalescience-fishing-logbook/id6754184953 (this page in markdown: same URL + `.md`)
- Developer: [BFT LLC](https://appshunter.io/developer/1846978566)
- Category: Sports, Navigation
- Price: Free with in-app purchases
- Rating: 4.86/5 from 7 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 17 · 34 MB
- Languages: English
- Released: 2025-10-21
- Data updated: 2026-10-15
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/scalescience-fishing-logbook/id6754184953/reviews.md

## What is ScaleScience?

ScaleScience is a fish weight calculator and digital catch log built for anglers who want accurate weight estimates on the water. Enter a length measurement, select your species, and get an instant weight estimate. Built by a fisherman for fishermen, the app lets you save and store catch info — including species, length, girth, photos, and location. Then you can seamlessly share your stats with your fishing buddies or keep it all to yourself. Fish smarter, brag better.

Key features:
- 100+ species covering tuna, bass, trout, salmon, billfish, grouper, snapper, jacks, and more. Don't see what you want? Request it
- For fisherman practicing catch and release or the one that just wants to brag, a length measurement can be used to estimate fish weight
- Save every catch in your own Cloud Synced digital log book with all of the details
- Interactive catch map to visualize where you fish and save your favorite fishing spots
- Contribute anonymized catch data to marine science research + the more you catch and contribute the more accurate our estimates are
- Offline access for premium subscribers

Create a free account to sync your catches to the cloud and access them from the ScaleScience web app at scalescience.net.

Optional subscriptions unlock additional features:
Basic ($0.99/mo): Ad-free experience, interactive catch map, fishing spots, 14-day offline access
Coming in future versions:
 - Pro ($2.99/mo)
 - Ultimate ($4.99/mo)

Want to request a feature? Email us at: scalesciences@gmail.com
Privacy Policy: https://www.scalescience.net/privacy

## Key features

- Instant fish weight estimates
- Log catches with photos and location
- Cloud-synced digital logbook
- Interactive catch map
- Contribute to marine science research
- Offline access for premium subscribers

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Basic Monthly | $0.99 | per month |
| Basic Annual | $9.99 | per year |


## Is ScaleScience safe?

Not enough ratings yet to assess ScaleScience.

## Is ScaleScience legit?

ScaleScience: Fishing Logbook has limited verification signals. The AppsHunter Legitimacy Score for ScaleScience is 48 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/scalescience-fishing-logbook/id6754184953/reviews.md

### 4/5 — Good so far

*2026-03-08*

Good app so far but need to see what comes in future versions. Worth a download.

### 5/5 — Best I’ve Tried

*2026-03-07*

So far this is the best catch log app I’ve tried. Simple and very intuitive. The weight estimates are a great feature. Will consider trying a subscription for the catch/spot map.

### 5/5 — Game changer for offshore fishing

*2026-03-07*

If you want to keep you catch log organized and brag to your friends this app is for you. Excited to see what they do with future versions. Loving the ability to use it offline when out at the canyons.

### 5/5 — Blown Away

*2026-03-05*

I stumbled across this app in preparation for a fishing trip, and man I’m glad that I did. This is such a cool idea and seemingly very accurate. I brought this with me on my fishing trip in the Caribbean and was able to use Scalescience to identity and approximate the weight of a Black Tip Shark we caught. I would have thought it was around 300 pounds, but Scalescience helped me realize it was closer to 500! Makes for a much better, and more accurate, story to share with friends and family. This tool will be a staple in all of my fishing trips moving forward!

### 5/5 — Surprisingly Accurate

*2026-03-05*

Tested this against my scale and was very accurate. Definitely recommend giving it a try.

### 5/5 — Love the logging

*2026-03-05*

The weight estimate is great and cool tool for turning the length into a more useful number. But the catch log is what I get the most value. Definitely the easiest way i’ve found to log my catch with a location, length, and now a weight estimate. Can’t wait to get some more fish in the books and track the best spots for big guys.

### 5/5 — Would recommend

*2026-03-05*

Super easy to use and the weight estimates are surprisingly accurate.

## Frequently asked questions about ScaleScience

### How does ScaleScience estimate fish weight?

ScaleScience estimates fish weight by using a length measurement and selecting the specific fish species. The app utilizes a database of species information to provide an accurate weight estimate on the water.

### What information can I log with ScaleScience?

You can log detailed information for each catch, including species, length, girth, photos, and the exact location. This data is stored in a cloud-synced digital logbook for easy access and organization.

### Can I use ScaleScience offline?

Yes, offline access is available for premium subscribers. This allows you to log and estimate fish weights even when you don't have an internet connection.

### What are the subscription options for ScaleScience?

ScaleScience offers a Basic subscription for $0.99/month or $9.99/year, which includes an ad-free experience, interactive catch map, fishing spots, and 14-day offline access. Pro and Ultimate tiers with additional features are planned for future releases.

### Does ScaleScience have ads?

The free version of ScaleScience contains advertisements. Subscribing to the Basic plan removes ads and provides additional features.

### How does ScaleScience contribute to marine science?

By contributing your anonymized catch data, you help improve the accuracy of the app's weight estimates and support marine science research. The more users contribute, the more precise the estimations become.

### What devices is ScaleScience available on?

ScaleScience is available on Mac, iPhone, and iPad, allowing you to manage your fishing logs across multiple Apple devices.

### How often is ScaleScience updated?

The app was last updated on March 3, 2026, with version 1.2. This indicates a commitment to ongoing development and feature additions.

## Version history (last 3 releases)

### 1.3 — 2026-04-10

New in V1.3.0:
- Native Apple Sign In — sign in with your Apple ID for fast, private account creation
- Native Google Sign In — sign in with your Google account for seamless access
- Bug fixes and performance improvements

### 1.2 — 2026-03-03

- Create a free account and access your catches across devices and on the web
- Catch history — save every catch with species, weight, measurements, GPS location, photos, and notes
- Interactive catch map — view all your catches on a map, save fishing spots, and track your location with heading
- Subscription tiers — Basic, Pro, and Ultimate plans with ad-free experience, offline access, and more
- Expanded species database — now 145+ species and counting 
- Research contribution — anonymously contribute your catch data to contribute to a public dataset

### 1.01 — 2025-10-21

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-15.*