# Zenith vs OrbitSmith

The clearest difference is update cadence: OrbitSmith at every 3 weeks against Zenith's every 13 months. 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.

Zenith ships an update every 13 months, OrbitSmith every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Zenith | OrbitSmith |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/zenith-iss-live-tracker/id6630373131/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 7 MB | 2 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aurelien Grifasi](https://appshunter.io/developer/1143814442) | [Seita Iizuka](https://appshunter.io/developer/1882242857) |

## What reviewers say

### Zenith

[App page](https://appshunter.io/ios/app/zenith-iss-live-tracker/id6630373131)

Explore Earth in a 3D simulation and track the International Space Station's real-time orbit. Experience a rotating planet with dynamic soundscapes and see the current number of astronauts on board.

**Highlights:** 3D Earth simulation, Real-time ISS orbit tracking, Live astronaut count, Dynamic soundscapes, Earth rotation view

**Features:** macOS Compatibility

**In-app purchases:** none


### OrbitSmith

[App page](https://appshunter.io/ios/app/orbitsmith/id6761014126)

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

**In-app purchases:** none


## Frequently asked questions

### Is Zenith free?

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

### Is OrbitSmith free?

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

### Do Zenith or OrbitSmith have ads?

Neither Zenith nor OrbitSmith shows ads.

### Which is updated more often, Zenith or OrbitSmith?

Zenith ships an update every 13 months, and OrbitSmith every 3 weeks. Most recently, Zenith was updated on October 24, 2026 and OrbitSmith 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.*