# Deep Study vs iNaturalist

The clearest difference is price: iNaturalist at Free against Deep Study's $9.99. iNaturalist also leads on chart position (#83 vs unranked). On update cadence, ads, in-app purchases and device support there is nothing between them.

iNaturalist is free to download; Deep Study costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Deep Study ships an update every 2 weeks, iNaturalist fortnightly. The most recent releases landed on October 27, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Deep Study | iNaturalist |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | — | **[4.1 (722 ratings)](https://appshunter.io/ios/app/inaturalist/id6475737561/reviews)** |
| Number of ratings | — | **722** |
| Positive reviews | — | 48.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | — | Free |
| Best chart rank | — | **#83** |
| Size | 1 MB | 220 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Berries in the Basket UG](https://appshunter.io/developer/1477618656) | [iNaturalist](https://appshunter.io/developer/421397031) |

## What reviewers say

### Deep Study

[App page](https://appshunter.io/ios/app/deep-study-study-timer/id6450757007)

**In-app purchases:** none


### iNaturalist

[App page](https://appshunter.io/ios/app/inaturalist/id6475737561)

**Currently charting:** #83 Top Free · Education (US App Store)

Identify plants, animals, and fungi using your camera or imported photos. Get AI-powered species suggestions and connect with a global community of nature enthusiasts to learn more about the natural world and contribute to scientific conservation efforts.

**Highlights:** AI species identification, Record species observations, Contribute to scientific data, Explore biodiversity, Connect with nature enthusiasts

**In-app purchases:** none

**What reviewers like**

- 🚀 Faster and more intuitive UI
- 👍 Improved features from website
- 💡 Batch upload and sorting options
- 🚀 Responsive and smooth performance
- 👍 Easier to navigate and use

**What reviewers complain about**

- 🐛 Bugs with observation time and location
- 🔍 Difficulty finding advanced editing options
- 🔍 Overly complex UI for basic tasks
- 🔍 Removal of useful features like map view
- 🔍 Too much reliance on AI identification

**Reported bugs**

- App freezes when suggesting IDs on audio clips
- Inconsistent tap responsiveness in search menu
- Observation time not accurately filling based on upload time
- Map showing incorrect observation locations
- Crashes and performance issues on some devices

**Requested features**

- Ability to type in address/coordinates for location
- Option to add observations to projects during upload
- Batch editing/uploading of observations
- More precise search filters (e.g. aquatic, parasitic, migratory)
- Bring back colored observation markers on map


## Frequently asked questions

### Is Deep Study free?

Deep Study costs $9.99, with no in-app purchases.

### Is iNaturalist free?

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

### Do Deep Study or iNaturalist have ads?

Neither Deep Study nor iNaturalist shows ads.

### Which is updated more often, Deep Study or iNaturalist?

Deep Study ships an update every 2 weeks, and iNaturalist fortnightly. Most recently, Deep Study was updated on October 27, 2026 and iNaturalist on November 8, 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.*