# Zooniverse vs Nature's Notebook

The clearest difference is rating: Zooniverse at 3.7 against Nature's Notebook's 3.1. Zooniverse also leads on review sentiment (59% vs 40%). Nature's Notebook's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (12.0 vs 15.1). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Zooniverse holds the better App Store score, 3.7 against 3.1. Both are backed by a comparable volume of ratings — 37 and 26 respectively. Written reviews point the same way: 59% of Zooniverse's written reviews are positive against 40% of Nature's Notebook's.

Zooniverse ships an update every 2 months, Nature's Notebook every 3 weeks. The most recent releases landed on September 14, 2026 and July 7, 2026 respectively.

## The numbers

| Metric | Zooniverse | Nature's Notebook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (37 ratings)](https://appshunter.io/ios/app/zooniverse/id1194130243/reviews)** | [3.1 (26 ratings)](https://appshunter.io/ios/app/natures-notebook/id1463430668/reviews) |
| Number of ratings | **37** | 26 |
| Positive reviews | **58.8% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 50 MB | 47 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zooniverse](https://appshunter.io/developer/1851894671) | [National Phenology Network](https://appshunter.io/developer/843843359) |

## What reviewers say

### Zooniverse

[App page](https://appshunter.io/ios/app/zooniverse/id1194130243)

Participate in real scientific research by classifying data for projects across various disciplines. Contribute to discoveries and datasets that advance knowledge, all from your mobile device. This platform connects volunteers with professional researchers for impactful citizen science.

**Highlights:** People-powered research platform, Volunteer opportunities, Access to mobile-friendly projects, Push notification updates, View publications, Contribute to scientific discoveries

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

**In-app purchases:** none


### Nature's Notebook

[App page](https://appshunter.io/ios/app/natures-notebook/id1463430668)

Record observations of plant and animal life cycles, such as flowering and migration. Mark observation sites, create species lists, and log seasonal changes in nature.

**Highlights:** Record plant and animal life cycle events, Mark observation sites, Create species lists, Log seasonal observations, Citizen science program

**In-app purchases:** none


## Frequently asked questions

### Is Zooniverse free?

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

### Is Nature's Notebook free?

Nature's Notebook is free to download, with no in-app purchases.

### Which has better reviews, Zooniverse or Nature's Notebook?

Zooniverse is rated higher. Zooniverse averages 3.7 out of 5 from 37 ratings, while Nature's Notebook averages 3.1 from 26 ratings.

### Do Zooniverse or Nature's Notebook have ads?

Neither Zooniverse nor Nature's Notebook shows ads.

### Which is updated more often, Zooniverse or Nature's Notebook?

Zooniverse ships an update every 2 months, and Nature's Notebook every 3 weeks. Most recently, Zooniverse was updated on September 14, 2026 and Nature's Notebook on July 7, 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.*