# IP Calc vs ISS Real

The clearest difference is update cadence: ISS Real at every 4 days against IP Calc's every 4 weeks. ISS Real also leads on ratings volume (1.2K vs 2) and price ($0.99 vs $4.99). IP Calc's advantage is review sentiment (81% vs 63%). On rating, ads, in-app purchases and iOS requirement there is nothing between them.

IP Calc costs $4.99 and ISS Real $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

IP Calc holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ISS Real has 1.2K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 81% of IP Calc's written reviews are positive against 63% of ISS Real's.

IP Calc ships an update every 4 weeks, ISS Real every 4 days. Both last shipped on October 29, 2026.

## The numbers

| Metric | IP Calc | ISS Real |
| --- | --- | --- |
| Price | $4.99 | **$0.99** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ip-calc/id290185565/reviews)** | [4.8 (1.2K ratings)](https://appshunter.io/ios/app/iss-real-time-tracker-3d/id1079990061/reviews) |
| Number of ratings | 2 | **1.2K** |
| Positive reviews | **81.3% of reviews** | 62.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 4 days** |
| Monetization | Paid | **Free** |
| Size | 4 MB | 258 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Paul Taylor](https://appshunter.io/developer/290185568) | [Michael Stebel](https://appshunter.io/developer/1027443988) |

## What reviewers say

### IP Calc

[App page](https://appshunter.io/ios/app/ip-calc/id290185565)

Easily plan network changes with this tool. Enter an IP address and use a slider to select a subnet mask, instantly calculating and displaying all subnet-related information on a single screen.

**Highlights:** Instant mobile CIDR IPv4 calculations, Displays network and broadcast addresses, Calculates subnet and wildcard masks, Shows host range (HostMin and HostMax), Determines Max Subnets and Hosts/Net, Previous/Next Subnet navigation

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

**In-app purchases:** none


### ISS Real

[App page](https://appshunter.io/ios/app/iss-real-time-tracker-3d/id1079990061)

Visualize the International Space Station, Tiangong, and Hubble in real-time 3D. Get precise flyover predictions up to 30 days in advance with a star rating system. Stream live HD video from the ISS and learn about the current crew.

**Highlights:** Real-time 3D satellite tracking, Predictive flyover alerts, Interactive Earth globe, Live HD Earth video stream, Crew information and bios, Apple Watch widgets

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is IP Calc free?

IP Calc costs $4.99, with no in-app purchases.

### Is ISS Real free?

ISS Real costs $0.99, with no in-app purchases.

### Which has better reviews, IP Calc or ISS Real?

IP Calc is rated higher. IP Calc averages 5.0 out of 5 from 2 ratings, while ISS Real averages 4.8 from 1.2K ratings.

### Do IP Calc or ISS Real have ads?

Neither IP Calc nor ISS Real shows ads.

### Which is updated more often, IP Calc or ISS Real?

IP Calc ships an update every 4 weeks, and ISS Real every 4 days. Most recently, IP Calc was updated on October 29, 2026 and ISS Real on October 29, 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.*