# ZooMorphTrak vs 44th ISTS Symposium

The clearest difference is update cadence: 44th ISTS Symposium at every 4 days against ZooMorphTrak's every 4 months. ZooMorphTrak's advantage is iOS requirement (9.0 vs 13.0). 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.

ZooMorphTrak ships an update every 4 months, 44th ISTS Symposium every 4 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ZooMorphTrak | 44th ISTS Symposium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zoomorphtrak/id1270560206/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 20 MB | 18 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chicago Zoological Society](https://appshunter.io/developer/508261966) | [Poznan Supercomputing and Networking Center](https://appshunter.io/developer/726093818) |

## What reviewers say

### ZooMorphTrak

[App page](https://appshunter.io/ios/app/zoomorphtrak/id1270560206)

Estimate and compare Bottlenose Dolphin bodyweight using simple measurements like length and girth. This tool is designed for animal care specialists in institutional settings, offering approximate weight calculations and comparisons to wild dolphin data.

**Highlights:** Estimate dolphin bodyweight, Compare managed vs. wild dolphin weights, Input sex, age, length, and girth, Avoids need for scales or trained cooperation, Derived from long-term dolphin studies

**In-app purchases:** none


### 44th ISTS Symposium

[App page](https://appshunter.io/ios/app/44th-ists-symposium/id6759277003)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ZooMorphTrak free?

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

### Is 44th ISTS Symposium free?

44th ISTS Symposium is free to download, with no in-app purchases.

### Do ZooMorphTrak or 44th ISTS Symposium have ads?

Neither ZooMorphTrak nor 44th ISTS Symposium shows ads.

### Which is updated more often, ZooMorphTrak or 44th ISTS Symposium?

ZooMorphTrak ships an update every 4 months, and 44th ISTS Symposium every 4 days. Most recently, ZooMorphTrak was updated on November 3, 2026 and 44th ISTS Symposium on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*