# Search PubChem vs iORA

Search PubChem and iORA both sit at 5.0 stars, but that hides the real split: 100% of iORA's written reviews are positive against 75% of Search PubChem's. iORA also leads on update cadence (every 2 months vs every 9 months) and iOS requirement (14.3 vs 26.0). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Search PubChem against 5.0 for iORA. Both are backed by a comparable volume of ratings — 5 and 12 respectively. Written reviews are what separate them: 75% of Search PubChem's written reviews are positive against 100% of iORA's.

Search PubChem ships an update every 9 months, iORA every 2 months. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Search PubChem | iORA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/search-pubchem/id1369742632/reviews) | [5.0 (12 ratings)](https://appshunter.io/ios/app/iora-reaction-visualizer/id1609524913/reviews) |
| Number of ratings | 5 | **12** |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 9 MB | 40 MB |
| Requires iOS | 26.0 | **14.3** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Jae-Seung Lee](https://appshunter.io/developer/1146296876) | [Daniel Ess](https://appshunter.io/developer/1609524915) |

## What reviewers say

### Search PubChem

[App page](https://appshunter.io/ios/app/search-pubchem/id1369742632)

Access and manage chemical compound data from the PubChem database. Search for over 111 million compounds, view molecular formulas, weights, and structures, and create and track custom solutions with detailed composition information.

**Highlights:** Search PubChem database, View molecular formula, weight, and structure, Store compound information, Create and manage custom solutions, Track solution composition in grams and moles, Display 3D compound structures, Share solution data via CSV

**In-app purchases:** none


### iORA

[App page](https://appshunter.io/ios/app/iora-reaction-visualizer/id1609524913)

Visualize chemical reactions in 3D using quantum-mechanical simulations. This free, interactive application makes complex chemistry concepts accessible and engaging for learners.

**Highlights:** 3D chemical reaction visualization, Quantum-mechanical simulations, Interactive learning, Easy to use interface, Educational tool

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Search PubChem free?

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

### Is iORA free?

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

### Which has better reviews, Search PubChem or iORA?

Search PubChem and iORA are both rated 5.0 out of 5 on the App Store, from 5 and 12 ratings respectively.

### Do Search PubChem or iORA have ads?

Neither Search PubChem nor iORA shows ads.

### Which is updated more often, Search PubChem or iORA?

Search PubChem ships an update every 9 months, and iORA every 2 months. Most recently, Search PubChem was updated on October 7, 2026 and iORA on October 9, 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.*