Comparison

iMolview vs iSmartESA

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

Head to head
About

iMolview

Explore biological molecules in 3D. View proteins, DNA, and drug structures from major databases. Customize representations, select specific elements, and analyze molecular interactions. Sync your own files and save scenes for later.

Highlights
  • 3D molecular visualization
  • Browse PDB, DrugBank, Pubchem
  • Customizable representations
  • Individual element coloring
  • Neighbor analysis
  • Electron density map contouring
  • Scene saving and management
Features
Read full description

Explore the fascinating world of biological macromolecules: iMolview lets you browse and view in 3D protein and DNA structures from Protein Data Bank, drug molecules from DrugBank, and small molecules from Pubchem. Search for drug names like 'ibuprofen' or 'gefitinib' in DrugBank, or proteins like 'insulin' or 'thyroid receptor' in PDB. Information associated with each molecule in these databases is also at your fingertips. Sync and view your own structure files via iTunes. Molecular view can be customized with a rich set of molecular representations (wires, balls-and-sticks, space filling, ribbon diagrams, molecular surfaces) and various coloring schemes. Select residues, atoms or chains and color or change their representations individually. Select 'neighbors' of a ligand or any other selection to identify interacting atoms or residues. Set 'inertia' to the maximum and let your molecule spin in 3D indefinitely. Save the current scene (viewpoint + representation) as a slide which can be easily accessed later. Save the whole molecular document with multiple slides. Load and contour electron density map

About

iSmartESA

Features
Read full description

Sound acquisition is endlessly done from the smartphone's built-in microphone or external microphone at a sampling frequency of 44100Hz, and the last 20 seconds are recorded when the recording button is pressed. The frequency display range can be selected from 0-500Hz, 0-1kHz, 0-2kHz, 0-5kHz, 0-10kHz, and 0-20kHz. Analysis: Waveform (time axis expansion and contraction, envelope), FFT spectrum. In case of voice sound analysis, the app can determine the fundamental frequency (by cepstrum) and formant frequencies (by MEM). In addition to being able to select any section for these analyzes, it is also possible to observe while playing back the sound. Sound pressure level and frequency: During measurement, the moving average sound pressure level for one second is displayed (A-weighted value). This function may be used to measure environmental noise. The value is adjusted for a specific microphone: SONY ECM-SP10, but the accuracy is not guaranteed. Also, during the measurement, the peak frequency (The frequency range to be detected is set on the setting screen) is displayed. Files: You can save the recorded sound as a file with comments. Sharing function is available.

Screenshots

iMolview1 screens
iSmartESA4 screens

Verdict

The call

The clearest difference is price: iMolview at $0.99 against iSmartESA's $3.99. iMolview also leads on iOS requirement (12.0 vs 14.1). On update cadence, ads, in-app purchases and device support 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

iMolview costs $0.99 and iSmartESA $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

iMolview ships an update every 2 months, iSmartESA every 3 months. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
iMolview versus iSmartESA: the parameters behind the verdict, then further details
ParameteriMolviewiSmartESA
Price$0.99 — better$3.99
Rating3.6 (13 ratings) — better—
Positive reviews78.9% of reviews—
Number of ratings13 — better—
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better14.1
Further details — not scored
Size55 MB3 MB
Age rating4+4+
DeveloperMolsoftHiroshi Nakano

In-app purchases

None

iMolview

No in-app purchases

None

iSmartESA

No in-app purchases

Questions

Is iMolview free?
iMolview costs $0.99, with no in-app purchases.
Is iSmartESA free?
iSmartESA costs $3.99, with no in-app purchases.
Do iMolview or iSmartESA have ads?
Neither iMolview nor iSmartESA shows ads.
Which is updated more often, iMolview or iSmartESA?
iMolview ships an update every 2 months, and iSmartESA every 3 months. Most recently, iMolview was updated on October 22, 2026 and iSmartESA on October 25, 2026.

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