Comparison

Search PubChem vs Perse Visualizer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read 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.

About

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.

Highlights
  • Protein visualization
  • Search by name or ID
  • Multiple display styles
  • Access to protein data bank
  • Educational tool
Features
Read 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

Search PubChem4 screens
Perse Visualizer4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
Search PubChem versus Perse Visualizer: the parameters behind the verdict, then further details
ParameterSearch PubChemPerse Visualizer
PriceFreeFree
Rating5.0 (5 ratings)5.0 (7 ratings)
Positive reviews75.0% of reviews — better50.0% of reviews
Number of ratings57 — better
Update frequencyEvery 9 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, Mac, Vision Pro — betteriPhone, iPad, iPod
Requires iOS26.012.0 — better
Further details — not scored
Size9 MB24 MB
Age rating17+4+
DeveloperJae-Seung LeeDylan Riffle

Customer experience

Search PubChem

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Perse Visualizer

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Search PubChem

No in-app purchases

None

Perse Visualizer

No in-app purchases

Questions

Is Search PubChem free?
Search PubChem is free to download, with no in-app purchases.
Is Perse Visualizer free?
Perse Visualizer is free to download, with no in-app purchases.
Which has better reviews, Search PubChem or Perse Visualizer?
Search PubChem and Perse Visualizer are both rated 5.0 out of 5 on the App Store, from 5 and 7 ratings respectively.
Do Search PubChem or Perse Visualizer have ads?
Perse Visualizer shows ads; Search PubChem does not.
Which is updated more often, Search PubChem or Perse Visualizer?
Search PubChem ships an update every 9 months, and Perse Visualizer every 2 months. Most recently, Search PubChem was updated on June 1, 2026 and Perse Visualizer on September 9, 2026.

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