# 4GKey vs Symphony Life

The clearest difference is update cadence: Symphony Life at every 2 weeks against 4GKey's every 2 months. 4GKey's advantage is iOS requirement (9.0 vs 15.6). 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.

4GKey ships an update every 2 months, Symphony Life every 2 weeks. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 4GKey | Symphony Life |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 92 MB | 38 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [克勤 刘](https://appshunter.io/developer/1566870371) | [Guangzhou Cardi Auto Parts Co., Ltd.](https://appshunter.io/developer/1543616817) |

## What reviewers say

### 4GKey

[App page](https://appshunter.io/ios/app/4gkey/id1574668344)

**Features:** macOS Compatibility

**In-app purchases:** none


### Symphony Life

[App page](https://appshunter.io/ios/app/symphony-life/id6736676736)

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

**In-app purchases:** none


## Frequently asked questions

### Is 4GKey free?

4GKey is free to download, with no in-app purchases.

### Is Symphony Life free?

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

### Do 4GKey or Symphony Life have ads?

Neither 4GKey nor Symphony Life shows ads.

### Which is updated more often, 4GKey or Symphony Life?

4GKey ships an update every 2 months, and Symphony Life every 2 weeks. Most recently, 4GKey was updated on October 30, 2026 and Symphony Life 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.*