# Fish AI vs Pi Sequence

The clearest difference is update cadence: Fish AI at monthly against Pi Sequence's every 3 months. Fish AI also leads on iOS requirement (15.5 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Fish AI sells 2 in-app purchases, starting at $7.99 per 7 days and Pi Sequence sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Fish AI ships an update monthly, Pi Sequence every 3 months. Both last shipped on October 10, 2026.

## The numbers

| Metric | Fish AI | Pi Sequence |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fish-ai-fish-identifier/id6749224279/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 124 MB | 29 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GODHITECH JSC](https://appshunter.io/developer/1722381618) | [晓灵 潘](https://appshunter.io/developer/6781908128) |

## What reviewers say

### Fish AI

[App page](https://appshunter.io/ios/app/fish-ai-fish-identifier/id6749224279)

Instantly identify fish species using your camera. Access detailed information, log your catches with location and lure details, and explore a comprehensive fish encyclopedia. Perfect for anglers wanting to learn more about their catches.

**Highlights:** Instant AI fish identification, Detailed fish information, Smart catch logging, Map integration for catches, Fish encyclopedia

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fish Weekly Pro | $7.99 | per 7 days |
| Fish Identifier Lifetime Pro | $29.99 | one-time |


### Pi Sequence

[App page](https://appshunter.io/ios/app/pi-sequence-memorize-pi/id6783736734)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro | $3.99 | one-time |


## Frequently asked questions

### Is Fish AI free?

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

### Is Pi Sequence free?

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

### Do Fish AI or Pi Sequence have ads?

Neither Fish AI nor Pi Sequence shows ads.

### Which is updated more often, Fish AI or Pi Sequence?

Fish AI ships an update monthly, and Pi Sequence every 3 months. Most recently, Fish AI was updated on October 10, 2026 and Pi Sequence on October 10, 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.*