# Gulf vs CELLYPSO

The clearest difference is update cadence: Gulf at every 8 months against CELLYPSO's every 30 months. Gulf also leads on iOS requirement (12.0 vs 16.0). 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.

Gulf ships an update every 8 months, CELLYPSO every 30 months. The most recent releases landed on September 10, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Gulf | CELLYPSO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (4 ratings)](https://appshunter.io/ios/app/gulf/id1152311519/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 30 months |
| Monetization | Free | — |
| Size | 9 MB | 35 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Wikon Kommunikationstechnik GmbH](https://appshunter.io/developer/472943917) | [CELLYPSO GmbH](https://appshunter.io/developer/1454391002) |

## What reviewers say

### Gulf

[App page](https://appshunter.io/ios/app/gulf/id1152311519)

Monitor and control the fill level of your tanks remotely from anywhere in the world. Provides an optimized overview of your tank status. A demo login is available for new users.

**Highlights:** Remote tank fill level control, Global accessibility, Optimized tank overview, Demo login available, Tank status monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### CELLYPSO

[App page](https://appshunter.io/ios/app/cellypso/id1454917643)

**In-app purchases:** none


## Frequently asked questions

### Is Gulf free?

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

### Is CELLYPSO free?

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

### Do Gulf or CELLYPSO have ads?

Neither Gulf nor CELLYPSO shows ads.

### Which is updated more often, Gulf or CELLYPSO?

Gulf ships an update every 8 months, and CELLYPSO every 30 months. Most recently, Gulf was updated on September 10, 2026 and CELLYPSO on September 15, 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.*