# SatVis vs Unvigintuple Calc

The clearest difference is ads: SatVis at none against Unvigintuple Calc's shown. Unvigintuple Calc's advantage is update cadence (every 2 weeks vs every 88 months) and iOS requirement (15.8.3 vs 17.0). 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.

SatVis ships an update every 88 months, Unvigintuple Calc every 2 weeks. Both last shipped on October 16, 2026.

## The numbers

| Metric | SatVis | Unvigintuple Calc |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 88 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 5 MB | 36 MB |
| Requires iOS | 17.0 | **15.8.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Florian Mauracher](https://appshunter.io/developer/1438364622) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### SatVis

[App page](https://appshunter.io/ios/app/satvis/id1441084766)

Visualize satellite orbits and predict upcoming passes. Receive notifications for when satellites will be visible from your location. Access a comprehensive satellite tracking experience.

**Highlights:** Satellite orbit visualization, Pass prediction, Upcoming pass notifications, Wrapper for satvis.space

**Features:** Vision Pro support

**In-app purchases:** none


### Unvigintuple Calc

[App page](https://appshunter.io/ios/app/unvigintuple-calc/id6742525694)

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

**In-app purchases:** none


## Frequently asked questions

### Is SatVis free?

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

### Is Unvigintuple Calc free?

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

### Do SatVis or Unvigintuple Calc have ads?

Unvigintuple Calc shows ads; SatVis does not.

### Which is updated more often, SatVis or Unvigintuple Calc?

SatVis ships an update every 88 months, and Unvigintuple Calc every 2 weeks. Most recently, SatVis was updated on October 16, 2026 and Unvigintuple Calc on October 16, 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.*