# SIMSONAIR vs JLL Let's audit

The clearest difference is ads: JLL Let's audit at none against SIMSONAIR's shown. JLL Let's audit also leads on update cadence (every 3 weeks vs every 5 months). SIMSONAIR's advantage is iOS requirement (12.0 vs 15.0). On price, 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.

SIMSONAIR ships an update every 5 months, JLL Let's audit every 3 weeks. The most recent releases landed on October 4, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | SIMSONAIR | JLL Let's audit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (12 ratings)](https://appshunter.io/ios/app/simsonair/id6738784787/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 225 MB | 28 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen United Power Technology Co., Ltd.](https://appshunter.io/developer/1447215451) | [DSI Ltd](https://appshunter.io/developer/920872191) |

## What reviewers say

### SIMSONAIR

[App page](https://appshunter.io/ios/app/simsonair/id6738784787)

This intelligent health app syncs with a Bluetooth watch to monitor daily activities, track exercise, and analyze sleep patterns. It offers personalized fitness plans and guidance to help users achieve a healthier lifestyle. The application supports multiple languages and is designed for ease of use.

**Highlights:** Bluetooth watch connectivity, Exercise tracking, Sleep monitoring, Personalized fitness plans, Activity recording, Multi-language support

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

**In-app purchases:** none


### JLL Let's audit

[App page](https://appshunter.io/ios/app/jll-lets-audit/id6755426653)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SIMSONAIR free?

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

### Is JLL Let's audit free?

JLL Let's audit is free to download, with no in-app purchases.

### Do SIMSONAIR or JLL Let's audit have ads?

SIMSONAIR shows ads; JLL Let's audit does not.

### Which is updated more often, SIMSONAIR or JLL Let's audit?

SIMSONAIR ships an update every 5 months, and JLL Let's audit every 3 weeks. Most recently, SIMSONAIR was updated on October 4, 2026 and JLL Let's audit on September 23, 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.*