# iNaturalist Classic vs Chemical Solution Wizard

The clearest difference is price: iNaturalist Classic at Free against Chemical Solution Wizard's $3.99. iNaturalist Classic also leads on update cadence (every 5 weeks vs every 4 months) and iOS requirement (12.0 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

iNaturalist Classic is free to download; Chemical Solution Wizard costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iNaturalist Classic ships an update every 5 weeks, Chemical Solution Wizard every 4 months. Both last shipped on November 11, 2026.

## The numbers

| Metric | iNaturalist Classic | Chemical Solution Wizard |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.6 (4.7K ratings)](https://appshunter.io/ios/app/inaturalist-classic/id421397028/reviews)** | — |
| Number of ratings | **4.7K** | — |
| Positive reviews | 81.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Monetization | Free | — |
| Size | 44 MB | 1 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [iNaturalist](https://appshunter.io/developer/421397031) | [Roman Volinsky](https://appshunter.io/developer/977951850) |

## What reviewers say

### iNaturalist Classic

[App page](https://appshunter.io/ios/app/inaturalist-classic/id421397028)

Record and identify species encounters with a simple interface. Contribute to scientific research and learn about biodiversity. Connect with other nature enthusiasts and explore the natural world.

**Highlights:** Identify species globally, Record species sightings, Contribute observations to science, Add observations to projects, Learn about biodiversity, Connect with nature enthusiasts

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

**In-app purchases:** none

**What reviewers like**

- 👍 Helpful for identifying plants, animals, and fungi
- 🤝 Supportive community of experts
- 🌱 Contributes to citizen science and research
- 🔍 Accurate identification suggestions
- 🌐 Works well globally

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔍 Difficulty finding/sorting observations
- 🔒 Privacy concerns around data sharing
- 🤖 Concerns about AI/ML identification accuracy
- 💬 Negative interactions with some community members

**Reported bugs**

- Login issues or inability to create account
- Slow upload speeds or observation syncing
- Inconsistent performance between mobile and web versions

**Requested features**

- Ability to follow other users and see their observations
- More filtering and sorting options for observations
- Offline mode for taking photos and uploading later
- Easier location input for observations
- Private/personal project functionality


### Chemical Solution Wizard

[App page](https://appshunter.io/ios/app/chemical-solution-wizard/id987393752)

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

**In-app purchases:** none


## Frequently asked questions

### Is iNaturalist Classic free?

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

### Is Chemical Solution Wizard free?

Chemical Solution Wizard costs $3.99, with no in-app purchases.

### Do iNaturalist Classic or Chemical Solution Wizard have ads?

Neither iNaturalist Classic nor Chemical Solution Wizard shows ads.

### Which is updated more often, iNaturalist Classic or Chemical Solution Wizard?

iNaturalist Classic ships an update every 5 weeks, and Chemical Solution Wizard every 4 months. Most recently, iNaturalist Classic was updated on November 11, 2026 and Chemical Solution Wizard on November 11, 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.*