# Search PubChem

> Search and manage chemical compounds and custom solutions from PubChem. (iPhone/iPad app by Jae-Seung Lee.)

- Source: https://appshunter.io/ios/app/search-pubchem/id1369742632 (this page in markdown: same URL + `.md`)
- Developer: [Jae-Seung Lee](https://appshunter.io/developer/1146296876)
- Category: Education, Reference
- Price: Free
- Rating: 5.00/5 from 5 App Store ratings · 4 written reviews indexed
- Age rating: 17+
- Requires: iOS 26.0 · 9 MB
- Languages: American English
- Released: 2018-04-22
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/search-pubchem/id1369742632/reviews.md

## What is Search PubChem?

The app allows to search compounds through PubChem and helps to keep information on solutions made of those compounds.

I. Compounds Tab
Search the open chemistry database 'PubChem' at the National Institutes of Health (NIH) for chemical compounds. The app helps to find a compound by name from the collection of more than 111 million compounds. It downloads and stores the molecular formula, weight, and structure.

Compounds
1. Selecting the "Compounds" tab will present a list of compounds.
  - If there are any solutions made of a compound, a droplet will appear next to the compound's name.
2. When a compound is selected, a view with the detailed information will appear. Follow the instruction in "Details for a compound".
3. When the "+" button is selected, a view for search will appear. Follow the instruction in "Search for a compound".

Details for a compound
1. Click "Compounds" to return back to the table of compounds.
2. Click the magnifier icon to open the compound's PubChem page in the user's default web browser.
3. Click the trashcan icon to delete the compound. This function may not be available if there is a solution made of the compound.
4. Click one of the solutions made of the compound to display the information. See "Details for a solution" below.
5. Click "3D" to display a 3D structure. Use pan and pinch gestures to rotate and zoom the scene.

Search for a compound
1. Select "Compound Name" ("CID") and type a compound name (PubChem CID).
2. Click "Search" to connect to PubChem. An activity indicator will appear until the search is finished.
  - If the search succeeds, the downloaded information will appear.
  - If the search fails, an alert will appear.
3. Click "Save" to store the information about a compound.
4. Click "Cancel" to dismiss the scene.

II. Solutions Tab
Choose compounds downloaded from PubChem and make a solution. The app allows to record a list of compounds with amounts dissolved in a solution. For the saved solutions, the app displays their compositions in gram and mol.

Solutions
1. Selecting the "Solutions" tab will present a list of solutions.
2. When a solution is selected, a view with the detailed information will appear. Follow the instruction in "Details for a solution".
3. When the "+" button is selected, a view for search will appear. Follow the instruction in "Making a solution".

Details for a solution
1. Click "Solutions" to return back to the table of compounds.
2. Click the 'action' icon to share a csv file containig the information about the solution.
3. Click the trashcan icon to delete the solution.
5. Choose the unit among gram, mg, mol, and mM.
6. Select one of compounds to display its structure and formula. See "Mini details for a compound" below.

Making a solution
1. Click "Add Compounds" to bring a collection of compounds. See "Compounds collection" below.
2. The names of the compounds selected from "Compounds collection" will be displayed as “Solution Label”. A user can edit “Solution Label”.
3. The unit for the amount can be chosen among gram, mg, mol, and mM.
4. The amount may be entered.
5. Click "Save" to create and add a new solution.
6. Click "Cancel" to dismiss the scene.

Compounds collection
1. Select or deselect compounds by clicking the images of compounds.
2. Selected compounds will be displayed.
3. Click "Done" to return back to "Making a solution".
5. Click "Cancel" to dismiss the scene.

## Key features

- 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

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/search-pubchem/id1369742632/reviews.md

### 4/5 — Suggestion

*2025-05-15, version 1.2*

I suggest adding the possibility to download the .xyz, .pdb or whatever format you want of the compound in question.

### 5/5 — cool

*2024-06-18*

cool

### 2/5 — Needs more

*2021-06-18*

Layout is good but it needs much more components to make it useable and worth it.

### 4/5 — Search PubChem

*2020-08-05, version 2.1*

Grazie per questo aggiornamento di oggi 4 agosto 2020, ma come mai non sono presenti gli anticorpi monoclonali? (Trastuzumab, Omalizumab, Alemtuzumab, etc....)? Ho provato diverse volte a cercarli, ma non li trova. Potete rilasciare un aggiornamento per inserire anche questa importantissima classe di farmaci? Grazie mille e buon lavoro!

## Frequently asked questions about Search PubChem

### What is Search PubChem?

Search PubChem is an educational app that allows users to search the PubChem database for chemical compounds. It helps users find compound information, store it, and manage custom solutions made from these compounds.

### How many compounds can I search for in Search PubChem?

You can search for compounds from the PubChem database, which contains a collection of more than 111 million compounds. The app allows you to download and store details like molecular formula, weight, and structure for these compounds.

### Can I create and track custom solutions with Search PubChem?

Yes, Search PubChem enables you to create custom solutions by selecting compounds and specifying their amounts. The app then displays the composition of these saved solutions in both grams and moles, with options for different units like mg and mM.

### Does Search PubChem offer 3D visualizations of compounds?

Yes, Search PubChem provides a feature to display a 3D structure of a selected compound. Users can interact with the 3D model using pan and pinch gestures to rotate and zoom the scene.

### How is my data managed in Search PubChem?

The app allows you to save information about compounds you search for and create custom solutions. You can also delete compounds and solutions, though some may be protected if they are part of a solution.

### Can I share my solution data from Search PubChem?

Yes, Search PubChem allows you to share your solution data. You can click the 'action' icon within the solution details to share a CSV file containing the information about the solution.

### What devices is Search PubChem available on?

Search PubChem is available on macOS, iPhone, iPad, and Reality Device. This broad compatibility allows users to access chemical information across various Apple platforms.

### Is Search PubChem free to use?

Yes, Search PubChem is completely free to download and use. It does not have any in-app purchases or advertisements, providing an uninterrupted experience for users.

## Version history (last 5 releases)

### 4.3 — 2025-11-12

- Updated layouts and navigation
- Bug fixes

### 4.2 — 2023-07-15

- Support spotlight search: A user can turn the feature on/off through Settings.
- The 3D structure display can be reset to go back to the original viewpoint.

### 4.1 — 2022-06-23

- Notification and Widget are available
- Search compound by name
- Fix some bugs

### 4.0.1 — 2021-10-29

Fix a bug not showing indicator while connecting to PubChem

### 4.0 — 2021-10-28

The data can be shared between multiple devices if iCloud is enabled.
The UI has been revamped.

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## Related topics

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*