# Multi vs HL

The clearest difference is update cadence: HL at monthly against Multi's every 4 months. HL also leads on iOS requirement (9.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Multi ships an update every 4 months, HL monthly. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Multi | HL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Size | 8 MB | 18 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [MULTI MEASURING INSTRUMENTS CO., LTD.](https://appshunter.io/developer/1453652611) | [上海铭控传感技术有限公司](https://appshunter.io/developer/1687248200) |

## What reviewers say

### Multi

[App page](https://appshunter.io/ios/app/multi-tracer/id1453652612)

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

**In-app purchases:** none


### HL

[App page](https://appshunter.io/ios/app/hl-151-en/id6449443909)

**In-app purchases:** none


## Frequently asked questions

### Is Multi free?

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

### Is HL free?

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

### Do Multi or HL have ads?

Neither Multi nor HL shows ads.

### Which is updated more often, Multi or HL?

Multi ships an update every 4 months, and HL monthly. Most recently, Multi was updated on October 24, 2026 and HL on October 16, 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.*