# HD Microscope vs ISM

The clearest difference is review sentiment: ISM at 100% against HD Microscope's 4%. ISM also leads on rating (5.0 vs 1.5). HD Microscope's advantage is update cadence (every 6 weeks vs every 7 months) and ratings volume (39 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

ISM holds the better App Store score, 5.0 against 1.5. That said, the two scores are not equally well evidenced: HD Microscope has 39 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 4% of HD Microscope's written reviews are positive against 100% of ISM's.

HD Microscope ships an update every 6 weeks, ISM every 7 months. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | HD Microscope | ISM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (39 ratings)](https://appshunter.io/ios/app/hd-microscope/id1077972096/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ism-wf200/id6698873286/reviews)** |
| Number of ratings | **39** | 1 |
| Positive reviews | 4.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 7 months |
| Monetization | Free | Free |
| Size | 31 MB | 2 MB |
| Requires iOS | **8.3** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ABEL INDUSTREIS INTERNATIONAL CO., LTD.](https://appshunter.io/developer/529054659) | [Insize Co., Ltd.](https://appshunter.io/developer/1489274019) |

## What reviewers say

### HD Microscope

[App page](https://appshunter.io/ios/app/hd-microscope/id1077972096)

Transform your iPhone or iPad into a high-resolution digital microscope. Inspect your home environment, verify currency, or engage students with microscopic observations. Wirelessly stream video to your device for a clear, magnified view.

**Highlights:** High-resolution digital microscopy, Inspect home environment, Verify currency authenticity, Observe microorganisms, Wireless AV signal transmission, Works with iPhone and iPad

**Features:** macOS Compatibility

**In-app purchases:** none


### ISM

[App page](https://appshunter.io/ios/app/ism-wf200/id6698873286)

Explore the microscopic world with a WiFi digital microscope. Capture images, record videos, and perform measurements. Ideal for educational, research, and hobbyist use.

**Highlights:** Microscopic observation, Image capture, Video recording, Measurement tools, WiFi microscope control

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HD Microscope free?

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

### Is ISM free?

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

### Which has better reviews, HD Microscope or ISM?

ISM is rated higher. HD Microscope averages 1.5 out of 5 from 39 ratings, while ISM averages 5.0 from 1 ratings.

### Do HD Microscope or ISM have ads?

Neither HD Microscope nor ISM shows ads.

### Which is updated more often, HD Microscope or ISM?

HD Microscope ships an update every 6 weeks, and ISM every 7 months. Most recently, HD Microscope was updated on October 2, 2026 and ISM on September 29, 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.*