# Bio vs See Fish

The clearest difference is rating: Bio at 4.0 against See Fish's 3.0. Bio also leads on review sentiment (100% vs 67%). See Fish's advantage is in-app purchases (none vs 3) and ratings volume (4 vs 1). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Bio sells 3 one-off in-app purchases. See Fish asks for nothing beyond the download.

Bio holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 100% of Bio's written reviews are positive against 67% of See Fish's.

Bio ships an update every 6 months, See Fish every 4 months. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Bio | See Fish |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/bio-compatibility-analysis/id566991076/reviews)** | [3.0 (4 ratings)](https://appshunter.io/ios/app/see-fish/id1544177867/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 6 MB | 51 MB |
| Requires iOS | 17.5 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Biological Immunity Research Institute](https://appshunter.io/developer/566991079) | [Caia Corp](https://appshunter.io/developer/1090978943) |

## What reviewers say

### Bio

[App page](https://appshunter.io/ios/app/bio-compatibility-analysis/id566991076)

Discover deeper connections by analyzing your birth date for physical, mental, and emotional compatibility with others. This tool helps you understand relationship dynamics and find more fulfilling partnerships.

**Highlights:** Birth date compatibility analysis, Physical compatibility assessment, Mental compatibility assessment, Emotional compatibility assessment, Relationship insight tool

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Credit | $1.99 | one-time |
| 5 Credits | $3.99 | one-time |
| 10 Credits | $4.99 | one-time |


### See Fish

[App page](https://appshunter.io/ios/app/see-fish/id1544177867)

Identify fish species from photos using AI, learn if they are endangered, and measure them virtually. Share your catches and fishing experiences with others.

**Highlights:** AI fish recognition, Endangered species identification, Virtual reality measuring stick, Photo and video sharing, Catch logging

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bio free?

Bio is free to download, with in-app purchases available.

### Is See Fish free?

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

### Which has better reviews, Bio or See Fish?

Bio is rated higher. Bio averages 4.0 out of 5 from 1 ratings, while See Fish averages 3.0 from 4 ratings.

### Do Bio or See Fish have ads?

Neither Bio nor See Fish shows ads.

### Which is updated more often, Bio or See Fish?

Bio ships an update every 6 months, and See Fish every 4 months. Most recently, Bio was updated on October 1, 2026 and See Fish on October 3, 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.*