# SmartPro Instrument vs LookLockdown

The clearest difference is in-app purchases: SmartPro Instrument at none against LookLockdown's 2. SmartPro Instrument also leads on iOS requirement (15.6 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. LookLockdown sells 2 in-app purchases, starting at $0.99 per month. SmartPro Instrument asks for nothing beyond the download.

SmartPro Instrument ships an update every 2 months, LookLockdown monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SmartPro Instrument | LookLockdown |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.8 (8 ratings)](https://appshunter.io/ios/app/smartpro-instrument/id1341580615/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | — |
| Size | 44 MB | 14 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [SmartPro Instrument Co., Ltd.](https://appshunter.io/developer/1341580614) | [昊 陆](https://appshunter.io/developer/1398172088) |

## What reviewers say

### SmartPro Instrument

[App page](https://appshunter.io/ios/app/smartpro-instrument/id1341580615)

This app displays measurement test results synchronized with specialized devices. It allows users to generate, share, and print certifications for diamonds and other gemstones after completing required tests.

**Highlights:** Synchronized measurement test results, Generate gemstone certifications, Share and print certifications, Supports Diamonds, Moissanites, CVD/HPHT, Works with multiple SmartPro devices

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### LookLockdown

[App page](https://appshunter.io/ios/app/looklockdown/id6736931869)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is SmartPro Instrument free?

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

### Is LookLockdown free?

LookLockdown is free to download, with in-app purchases available.

### Do SmartPro Instrument or LookLockdown have ads?

Neither SmartPro Instrument nor LookLockdown shows ads.

### Which is updated more often, SmartPro Instrument or LookLockdown?

SmartPro Instrument ships an update every 2 months, and LookLockdown monthly. Most recently, SmartPro Instrument was updated on October 24, 2026 and LookLockdown on October 25, 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.*