# LockDown Browser vs Labster

The clearest difference is rating: Labster at 2.9 against LockDown Browser's 1.2. Labster also leads on review sentiment (27% vs 8%) and device support (3 vs 1). LockDown Browser's advantage is ratings volume (3.9K vs 29). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Labster holds the better App Store score, 2.9 against 1.2. That said, the two scores are not equally well evidenced: LockDown Browser has 3.9K ratings behind it against 29, 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 27% of Labster's.

LockDown Browser ships an update every 5 weeks, Labster monthly. The most recent releases landed on September 25, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | LockDown Browser | Labster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.2 (3.9K ratings)](https://appshunter.io/ios/app/lockdown-browser/id659101775/reviews) | **[2.9 (29 ratings)](https://appshunter.io/ios/app/labster/id1600663267/reviews)** |
| Number of ratings | **3.9K** | 29 |
| Positive reviews | 7.8% of reviews | **26.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Free | Free |
| Size | 17 MB | 141 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Respondus Inc.](https://appshunter.io/developer/365544611) | [Labster](https://appshunter.io/developer/1015898697) |

## What reviewers say

### LockDown Browser

[App page](https://appshunter.io/ios/app/lockdown-browser/id659101775)

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.

**Highlights:** Locks down exam environment, Prevents switching applications, Blocks access to other URLs, Disables screenshots, Prohibits copying or printing, Integrates with learning systems

**In-app purchases:** none

**What reviewers like**

- 🚀 Works well on iPad
- 🔒 Secures exams
- 👍 Helpful for online tests

**What reviewers complain about**

- 🐛 Crashes and freezes frequently
- 🔒 Locks down devices too aggressively
- 👎 Unreliable and glitchy
- 💤 Slow and unresponsive
- 🔋 Drains device battery

**Reported bugs**

- 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**

- Improved compatibility with iPads
- Better error handling and recovery
- Streamlined setup and onboarding
- More user-friendly interface


### Labster

[App page](https://appshunter.io/ios/app/labster/id1600663267)

Access a library of interactive science simulations for education. This platform offers virtual lab experiences for students and educators. Requires purchased access to use.

**Highlights:** Interactive science education platform, Virtual lab simulations, Access to content library, Designed for educators and students, Requires purchased access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LockDown Browser free?

LockDown Browser is free to download, with no in-app purchases.

### Is Labster free?

Labster is free to download, with no in-app purchases.

### Which has better reviews, LockDown Browser or Labster?

Labster is rated higher. LockDown Browser averages 1.2 out of 5 from 3.9K ratings, while Labster averages 2.9 from 29 ratings.

### Do LockDown Browser or Labster have ads?

Neither LockDown Browser nor Labster shows ads.

### Which is updated more often, LockDown Browser or Labster?

LockDown Browser ships an update every 5 weeks, and Labster monthly. Most recently, LockDown Browser was updated on September 25, 2026 and Labster on September 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*