# i vs HD Microscope

The clearest difference is rating: i at 2.7 against HD Microscope's 1.5. i also leads on review sentiment (20% vs 4%). HD Microscope's advantage is update cadence (every 6 weeks vs every 14 months) and iOS requirement (8.3 vs 16.0). On price, ratings volume, 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.

i holds the better App Store score, 2.7 against 1.5. Both are backed by a comparable volume of ratings — 35 and 39 respectively. Written reviews point the same way: 20% of i's written reviews are positive against 4% of HD Microscope's.

i ships an update every 14 months, HD Microscope every 6 weeks. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | i | HD Microscope |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (35 ratings)](https://appshunter.io/ios/app/i-seeing/id926099814/reviews)** | [1.5 (39 ratings)](https://appshunter.io/ios/app/hd-microscope/id1077972096/reviews) |
| Number of ratings | 35 | **39** |
| Positive reviews | **20.0% of reviews** | 4.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 6 MB | 31 MB |
| Requires iOS | 16.0 | **8.3** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Qingying Electronic Technology LLC](https://appshunter.io/developer/926099802) | [ABEL INDUSTREIS INTERNATIONAL CO., LTD.](https://appshunter.io/developer/529054659) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-seeing/id926099814)

Transform your smartphone into a powerful magnification tool. Observe and record microscopic details with your phone's camera and a macro lens. Measure objects with a scale bar and add notes to your digital micrographs.

**Highlights:** Professional magnification tool, Record digital micrographs, Optical magnification, Up to 10x digital zoom, Scale bar for measurement, Add notes and remarks, Direct photo sharing

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is i free?

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

### Is HD Microscope free?

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

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

i is rated higher. i averages 2.7 out of 5 from 35 ratings, while HD Microscope averages 1.5 from 39 ratings.

### Do i or HD Microscope have ads?

Neither i nor HD Microscope shows ads.

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

i ships an update every 14 months, and HD Microscope every 6 weeks. Most recently, i was updated on October 1, 2026 and HD Microscope on October 2, 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.*