iMolview vs iSmartESA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 3D molecular visualization
- Browse PDB, DrugBank, Pubchem
- Customizable representations
- Individual element coloring
- Neighbor analysis
- Electron density map contouring
- Scene saving and management
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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
iSmartESA
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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
Verdict
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
iMolview costs $0.99 and iSmartESA $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | iMolview | iSmartESA |
|---|---|---|
| Price | $0.99 — better | $3.99 |
| Rating | 3.6 (13 ratings) — better | — |
| Positive reviews | 78.9% of reviews | — |
| Number of ratings | 13 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 14.1 |
| Further details — not scored | ||
| Size | 55 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Molsoft | Hiroshi Nakano |
In-app purchases
iMolview
No in-app purchases
iSmartESA
No in-app purchases
Questions
Is iMolview free?
Is iSmartESA free?
Do iMolview or iSmartESA have ads?
Which is updated more often, iMolview or iSmartESA?
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