Search PubChem vs Perse Visualizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Search PubChem
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.
- 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
Read full descriptionHide full description
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.
Perse Visualizer
Visualize protein structures on your mobile device. Search the protein data bank by name or ID and display them in various styles like cartoon or ball and stick. Ideal for biology students and researchers.
- Protein visualization
- Search by name or ID
- Multiple display styles
- Access to protein data bank
- Educational tool
Read full descriptionHide full description
An easy to use mobile protein visualizer. Search for any protein from the RCSB protein data bank by name or ID. Perse can visualize proteins in cartoon, line, sphere and ball and stick style. Find this app helpful in the biology classroom or lab!
Screenshots
Verdict
The clearest difference is ads: Search PubChem at none against Perse Visualizer's shown. Search PubChem also leads on review sentiment (75% vs 50%) and monetization model (free vs ad-supported). Perse Visualizer's advantage is update cadence (every 2 months vs every 9 months) and iOS requirement (12.0 vs 26.0). On price, rating, ratings volume and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 Perse Visualizer. Both are backed by a comparable volume of ratings — 5 and 7 respectively. Written reviews are what separate them: 75% of Search PubChem's written reviews are positive against 50% of Perse Visualizer's.
Search PubChem ships an update every 9 months, Perse Visualizer every 2 months. The most recent releases landed on June 1, 2026 and September 9, 2026 respectively.
| Parameter | Search PubChem | Perse Visualizer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) | 5.0 (7 ratings) |
| Positive reviews | 75.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 5 | 7 — better |
| Update frequency | Every 9 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, Mac, Vision Pro — better | iPhone, iPad, iPod |
| Requires iOS | 26.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 24 MB |
| Age rating | 17+ | 4+ |
| Developer | Jae-Seung Lee | Dylan Riffle |
Customer experience
Search PubChem
Perse Visualizer
In-app purchases
Search PubChem
No in-app purchases
Perse Visualizer
No in-app purchases
Questions
Is Search PubChem free?
Is Perse Visualizer free?
Which has better reviews, Search PubChem or Perse Visualizer?
Do Search PubChem or Perse Visualizer have ads?
Which is updated more often, Search PubChem or Perse Visualizer?
Other comparisons















