# UCAR定位 vs JZZX

The clearest difference is iOS requirement: UCAR定位 at 12.0 against JZZX's 15.6. On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 14, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | UCAR定位 | JZZX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 23 MB | 6 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [CHIA LUNG LIN](https://appshunter.io/developer/1275889247) | [壮 黄](https://appshunter.io/developer/1140808500) |

## What reviewers say

### UCAR定位

[App page](https://appshunter.io/ios/app/ucar/id1275889248)

**Features:** macOS Compatibility

**In-app purchases:** none


### JZZX

[App page](https://appshunter.io/ios/app/jzzx/id1609944255)

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

**In-app purchases:** none


## Frequently asked questions

### Is UCAR定位 free?

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

### Is JZZX free?

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

### Do UCAR定位 or JZZX have ads?

Neither UCAR定位 nor JZZX shows ads.

### Which is updated more often, UCAR定位 or JZZX?

UCAR定位 ships an update every 3 months, and JZZX every 3 months. Most recently, UCAR定位 was updated on September 14, 2026 and JZZX on September 13, 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.*