# Typus vs blueMaster check

Typus and blueMaster check are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Typus ships an update every 3 weeks, blueMaster check monthly. The most recent releases landed on November 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Typus | blueMaster check |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/typus-meerwasser-app/id1576553364/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | — |
| Size | 55 MB | 46 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kowalytics UG (haftungsbeschrankt)](https://appshunter.io/developer/1576553366) | [ESYS Gesellschaft fuer Elektronische Systemtechnik . Hard- und Software mbH](https://appshunter.io/developer/917295043) |

## What reviewers say

### Typus

[App page](https://appshunter.io/ios/app/typus-meerwasser-app/id1576553364)

Easily document your aquarium's measured water values and track events like new stocking or incidents. Visualize correlations between events and water quality through clear graphs. Manage dosages and multiple tank profiles.

**Highlights:** Track water quality with dashboard, Set optimal parameter ranges, Log various tank events, Visualize events and values in graphs, Document dosage and link to measurements, Support for multiple units, Create multiple tank profiles

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

**In-app purchases:** none


### blueMaster check

[App page](https://appshunter.io/ios/app/bluemaster-check/id6476186617)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Typus free?

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

### Is blueMaster check free?

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

### Do Typus or blueMaster check have ads?

Neither Typus nor blueMaster check shows ads.

### Which is updated more often, Typus or blueMaster check?

Typus ships an update every 3 weeks, and blueMaster check monthly. Most recently, Typus was updated on November 7, 2026 and blueMaster check on October 25, 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.*