# TopSat vs JR Sat

The clearest difference is update cadence: TopSat at every 6 weeks against JR Sat's every 9 months. JR Sat's advantage is iOS requirement (13.0 vs 15.7). 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.

TopSat ships an update every 6 weeks, JR Sat every 9 months. The most recent releases landed on October 30, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | TopSat | JR Sat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 9 months |
| Size | 48 MB | 37 MB |
| Requires iOS | 15.7 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | +17 |
| Developer | [TopSat Monitoramento](https://appshunter.io/developer/1729243792) | [NEXO SISTEMAS DE SEGURANCA E RASTREAMENTO LTDA](https://appshunter.io/developer/1728740298) |

## What reviewers say

### TopSat

[App page](https://appshunter.io/ios/app/topsat/id6477400805)

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

**In-app purchases:** none


### JR Sat

[App page](https://appshunter.io/ios/app/jr-sat/id6479322928)

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

**In-app purchases:** none


## Frequently asked questions

### Is TopSat free?

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

### Is JR Sat free?

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

### Do TopSat or JR Sat have ads?

Neither TopSat nor JR Sat shows ads.

### Which is updated more often, TopSat or JR Sat?

TopSat ships an update every 6 weeks, and JR Sat every 9 months. Most recently, TopSat was updated on October 30, 2026 and JR Sat on November 4, 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.*