# Nature's Notebook vs Infrared Explorer

The clearest difference is update cadence: Infrared Explorer at daily against Nature's Notebook's every 3 weeks. Nature's Notebook's advantage is iOS requirement (12.0 vs 15.1). 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.

Nature's Notebook ships an update every 3 weeks, Infrared Explorer daily. Both last shipped on October 24, 2026.

## The numbers

| Metric | Nature's Notebook | Infrared Explorer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (27 ratings)](https://appshunter.io/ios/app/natures-notebook/id1463430668/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Free | — |
| Size | 47 MB | 141 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [National Phenology Network](https://appshunter.io/developer/843843359) | [Institute for Future Intelligence](https://appshunter.io/developer/6813156291) |

## 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


### Infrared Explorer

[App page](https://appshunter.io/ios/app/infrared-explorer/id6813156289)

**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 Infrared Explorer free?

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

### Do Nature's Notebook or Infrared Explorer have ads?

Neither Nature's Notebook nor Infrared Explorer shows ads.

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

Nature's Notebook ships an update every 3 weeks, and Infrared Explorer daily. Most recently, Nature's Notebook was updated on October 24, 2026 and Infrared Explorer 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.*