# Audubon Zoo vs KorStream

The clearest difference is update cadence: KorStream at every 10 days against Audubon Zoo's monthly. Audubon Zoo's advantage is iOS requirement (15.0 vs 17.0). 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.

Audubon Zoo ships an update monthly, KorStream every 10 days. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Audubon Zoo | KorStream |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (220 ratings)](https://appshunter.io/ios/app/audubon-zoo/id6736619507/reviews)** | — |
| Number of ratings | **220** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 60 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Audubon Nature Institute, Inc.](https://appshunter.io/developer/816700940) | [Patrick Laursen](https://appshunter.io/developer/1871516554) |

## What reviewers say

### Audubon Zoo

[App page](https://appshunter.io/ios/app/audubon-zoo/id6736619507)

Navigate and plan your visit to the zoo with this interactive guide. Find exhibits, amenities, and create a personalized itinerary to maximize your experience. Stay updated on events and offers.

**Highlights:** Interactive wayfinding, Exhibit and amenity locator, Personalized visit itinerary, Ticket purchasing, Real-time event updates, Conservation information

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

**In-app purchases:** none


### KorStream

[App page](https://appshunter.io/ios/app/korstream/id6758214815)

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

**In-app purchases:** none


## Frequently asked questions

### Is Audubon Zoo free?

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

### Is KorStream free?

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

### Do Audubon Zoo or KorStream have ads?

Neither Audubon Zoo nor KorStream shows ads.

### Which is updated more often, Audubon Zoo or KorStream?

Audubon Zoo ships an update monthly, and KorStream every 10 days. Most recently, Audubon Zoo was updated on October 22, 2026 and KorStream on October 24, 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.*