# AIS Explorer vs DischargeKeeperApp

The clearest difference is in-app purchases: DischargeKeeperApp at none against AIS Explorer's 3. DischargeKeeperApp also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. AIS Explorer sells 3 in-app purchases, starting at $49.00 per month. DischargeKeeperApp asks for nothing beyond the download.

## The numbers

| Metric | AIS Explorer | DischargeKeeperApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/ais-explorer/id1670774413/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 68 MB | 39 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PredictWind Limited](https://appshunter.io/developer/477048590) | [photrack](https://appshunter.io/developer/6810728516) |

## What reviewers say

### AIS Explorer

[App page](https://appshunter.io/ios/app/ais-explorer/id1670774413)

Track ships and yachts globally in real-time with advanced satellite and terrestrial AIS receivers. Offers vessel search, favorites, port of call details, and integrated weather forecasts with routing for ETAs. Provides comprehensive satellite AIS data.

**Highlights:** Real-time Satellite AIS, Real-time Terrestrial AIS, Search Vessels, Save To Favourites, Last Port of Call, Advanced Weather Forecasts, Weather Routing - ETA

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AIS Pro monthly | $49.00 | per month |
| AIS Pro 3 monthly | $99.00 | per 3 months |
| AIS Pro Annual | $249.00 | per year |


### DischargeKeeperApp

[App page](https://appshunter.io/ios/app/dischargekeeperapp/id6810728514)

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

**In-app purchases:** none


## Frequently asked questions

### Is AIS Explorer free?

AIS Explorer is free to download, with in-app purchases available.

### Is DischargeKeeperApp free?

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

### Do AIS Explorer or DischargeKeeperApp have ads?

AIS Explorer shows ads; DischargeKeeperApp does not.

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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.*