LockDown Browser vs MolViewApp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LockDown Browser
This application creates a secure browser environment for online exams, preventing access to other applications, websites, or device functions. It ensures the integrity of assessments by locking users into the exam until submission. It is compatible with specific learning systems and can be used with proctoring systems if enabled by an instructor.
- Locks down exam environment
- Prevents switching applications
- Blocks access to other URLs
- Disables screenshots
- Prohibits copying or printing
- Integrates with learning systems
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LockDown Browser is a custom browser that locks down the exam environment within specific learning and assessment systems. When LockDown Browser is used during an online exam, you are unable to go to other URLs, switch applications, take screenshots, copy questions or print. It essentially locks you into the exam until it’s submitted for grading. Important: This application can only be used with the Respondus Monitor proctoring system if your instructor has enabled the use of an iPad for the exam. If your instructor hasn't enabled the use of an iPad for the exam, you will be unable to use this application with it. While LockDown Browser isn’t the most exciting app available, it does make online assessments possible. And, hey, you can download it for free. This is NOT a limited-feature version and there are NO advertisements of any type.
MolViewApp
Explore 3D molecular structures with interactive visualizations. Load PDB files locally or by ID and utilize various display modes and advanced features like electrostatic potential mapping and structural alignment. All processing is done on-device for privacy.
- Load PDB files locally or by ID
- Multiple structure loading and visibility control
- Surface electrostatic potential map
- Structural alignment and superposition
- Secondary structure coloring
- Morphing between conformations
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MolViewApp is an iPad molecular structure viewer built on Mol*. Load PDB files locally or by PDB ID and explore proteins with cartoon, surface, stick, and ball-and-stick representations. Features: - Load multiple structures; per-structure visibility from the Objects panel - Surface electrostatic potential map (screened-Coulomb / APBS-style) - Superposition and sequence-independent structural alignment - Secondary structure (DSSP) coloring - Morphing between conformations - Command-line interface and built-in manual All computation runs on-device. No account, no data collection, no tracking.
Screenshots
Verdict
The clearest difference is review sentiment: MolViewApp at 100% against LockDown Browser's 8%. MolViewApp also leads on rating (5.0 vs 1.2) and update cadence (every 2 days vs every 5 weeks). LockDown Browser's advantage is ratings volume (4K vs 2). On price, ads, in-app purchases and monetization model 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.
MolViewApp holds the better App Store score, 5.0 against 1.2. That said, the two scores are not equally well evidenced: LockDown Browser has 4K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 8% of LockDown Browser's written reviews are positive against 100% of MolViewApp's.
LockDown Browser ships an update every 5 weeks, MolViewApp every 2 days. The most recent releases landed on October 22, 2026 and October 11, 2026 respectively.
| Parameter | LockDown Browser | MolViewApp |
|---|---|---|
| Price | Free | Free |
| Rating | 1.2 (4K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 7.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 4K — better | 2 |
| Update frequency | Every 5 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 17 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Respondus Inc. | Donghan Lee |
Customer experience
LockDown Browser
MolViewApp
Bugs and requests
LockDown Browser
Reported bugs
4 issues- Fails to load tests and quizzes
- Prevents device power off and exit
- Incompatible with other apps like Canvas
- Randomly kicks users out of exams
Requested features
4 requests- Improved compatibility with iPads
- Better error handling and recovery
- Streamlined setup and onboarding
- More user-friendly interface
MolViewApp
Not enough reviews yet to summarise bugs or requests.
In-app purchases
LockDown Browser
No in-app purchases
MolViewApp
No in-app purchases
Questions
Is LockDown Browser free?
Is MolViewApp free?
Which has better reviews, LockDown Browser or MolViewApp?
Do LockDown Browser or MolViewApp have ads?
Which is updated more often, LockDown Browser or MolViewApp?
Other comparisons
