# ISS Detector vs DJI Simulator

The clearest difference is rating: ISS Detector at 4.6 against DJI Simulator's 2.4. ISS Detector also leads on review sentiment (56% vs 24%) and ratings volume (569 vs 43). DJI Simulator's advantage is in-app purchases (none vs 13) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. ISS Detector sells 11 in-app purchases, starting at $0.99 per month. DJI Simulator asks for nothing beyond the download.

ISS Detector holds the better App Store score, 4.6 against 2.4. That said, the two scores are not equally well evidenced: ISS Detector has 569 ratings behind it against 43, so its average is the more settled of the two. Written reviews point the same way: 56% of ISS Detector's written reviews are positive against 24% of DJI Simulator's.

ISS Detector ships an update monthly, DJI Simulator every 2 months. The most recent releases landed on September 24, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | ISS Detector | DJI Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (569 ratings)](https://appshunter.io/ios/app/iss-detector/id1198597805/reviews)** | [2.4 (43 ratings)](https://appshunter.io/ios/app/dji-simulator/id6757897210/reviews) |
| Number of ratings | **569** | 43 |
| Positive reviews | **56.2% of reviews** | 24.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 31 MB | 326 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | +4 |
| Developer | [Derk Vrijdag](https://appshunter.io/developer/1198597804) | [DJI](https://appshunter.io/developer/599957686) |

## What reviewers say

### ISS Detector

[App page](https://appshunter.io/ios/app/iss-detector/id1198597805)

Easily track the International Space Station and other satellites. Receive timely alarms before passes and get weather condition checks for optimal viewing. Enhance functionality with optional in-app purchases to discover more celestial objects.

**Highlights:** ISS tracking and alerts, Weather condition checks, Alarm notifications, Track Starlink trains, Track Hubble telescope, Track amateur radio satellites

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $0.99 | per month |
| Donation | $1.99 | per month |
| Premium Access | $1.99 | per month |
| Premium Access | $2.99 | per year |
| Premium Access | $5.99 | per year |
| Donation | $5.99 | per year |
| Premium Access | $11.99 | per year |
| Starlink and Famous objects | $3.99 | one-time |
| Amateur Radio Satellites | $3.99 | one-time |
| Comets and Planets | $3.99 | one-time |
| Combo package | $5.99 | one-time |


### DJI Simulator

[App page](https://appshunter.io/ios/app/dji-simulator/id6757897210)

Master drone flying skills in a realistic virtual environment. Practice various flight maneuvers and challenges across diverse simulated locations without the risk of real-world accidents. Progress through structured training courses to build confidence for aerial photography.

**Highlights:** Realistic virtual flight environment, Safe training ground without risk, Multiple scenario simulations, Progressive training courses, Authentic control experience with DJI controllers

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

**In-app purchases:** none


## Frequently asked questions

### Is ISS Detector free?

ISS Detector is free to download, with in-app purchases available.

### Is DJI Simulator free?

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

### Which has better reviews, ISS Detector or DJI Simulator?

ISS Detector is rated higher. ISS Detector averages 4.6 out of 5 from 569 ratings, while DJI Simulator averages 2.4 from 43 ratings.

### Do ISS Detector or DJI Simulator have ads?

ISS Detector shows ads; DJI Simulator does not.

### Which is updated more often, ISS Detector or DJI Simulator?

ISS Detector ships an update monthly, and DJI Simulator every 2 months. Most recently, ISS Detector was updated on September 24, 2026 and DJI Simulator on September 26, 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.*