# Nature's Notebook vs Leave No Trace Citizen Science

The clearest difference is review sentiment: Leave No Trace Citizen Science at 100% against Nature's Notebook's 40%. Leave No Trace Citizen Science also leads on rating (5.0 vs 3.2). Nature's Notebook's advantage is ratings volume (27 vs 1) and iOS requirement (12.0 vs 15.0). On price, update cadence, 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.

Leave No Trace Citizen Science holds the better App Store score, 5.0 against 3.2. That said, the two scores are not equally well evidenced: Nature's Notebook has 27 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 40% of Nature's Notebook's written reviews are positive against 100% of Leave No Trace Citizen Science's.

Nature's Notebook ships an update every 3 weeks, Leave No Trace Citizen Science every 6 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Nature's Notebook | Leave No Trace Citizen Science |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (27 ratings)](https://appshunter.io/ios/app/natures-notebook/id1463430668/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/leave-no-trace-citizen-science/id1536428995/reviews)** |
| Number of ratings | **27** | 1 |
| Positive reviews | 40.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 47 MB | 33 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [National Phenology Network](https://appshunter.io/developer/843843359) | [Greg Newman](https://appshunter.io/developer/1536428997) |

## What reviewers say

### 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


### Leave No Trace Citizen Science

[App page](https://appshunter.io/ios/app/leave-no-trace-citizen-science/id1536428995)

Empower volunteers to monitor outdoor resource conditions over time. This citizen science application supports the mission of protecting natural spaces through responsible enjoyment and education.

**Highlights:** Citizen science data collection, Resource condition monitoring, Outdoor ethics education, Inspires responsible enjoyment, Volunteer empowerment

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nature's Notebook free?

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

### Is Leave No Trace Citizen Science free?

Leave No Trace Citizen Science is free to download, with no in-app purchases.

### Which has better reviews, Nature's Notebook or Leave No Trace Citizen Science?

Leave No Trace Citizen Science is rated higher. Nature's Notebook averages 3.2 out of 5 from 27 ratings, while Leave No Trace Citizen Science averages 5.0 from 1 ratings.

### Do Nature's Notebook or Leave No Trace Citizen Science have ads?

Neither Nature's Notebook nor Leave No Trace Citizen Science shows ads.

### Which is updated more often, Nature's Notebook or Leave No Trace Citizen Science?

Nature's Notebook ships an update every 3 weeks, and Leave No Trace Citizen Science every 6 weeks. Most recently, Nature's Notebook was updated on November 3, 2026 and Leave No Trace Citizen Science on November 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.*