# AquaCalculator vs Bluetosec Controller New

The clearest difference is in-app purchases: Bluetosec Controller New at none against AquaCalculator's 5. Bluetosec Controller New also leads on iOS requirement (15.0 vs 18.6). AquaCalculator's advantage is update cadence (every 3 weeks vs every 27 months). On price, ads and device support there is nothing between them.

Both are free to download. AquaCalculator sells 5 in-app purchases, starting at $3.99 per month. Bluetosec Controller New asks for nothing beyond the download.

AquaCalculator ships an update every 3 weeks, Bluetosec Controller New every 27 months. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AquaCalculator | Bluetosec Controller New |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (12 ratings)](https://appshunter.io/ios/app/aquacalculator/id1449511522/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 27 months |
| Monetization | Subscription | — |
| Size | 49 MB | 1 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thallos](https://appshunter.io/developer/544488594) | [AMG Sicherheitstechnik](https://appshunter.io/developer/1151415498) |

## What reviewers say

### AquaCalculator

[App page](https://appshunter.io/ios/app/aquacalculator/id1449511522)

This app helps dedicated marine aquarists manage and document their aquariums. It tracks water parameters, manages animal stock, and calculates precise salt and nutrient additions. It also offers tools for adjusting calcium, alkalinity, and magnesium levels.

**Highlights:** Manage multiple aquariums, Water value documentation with graphs and tables, Animal administration with notes and pictures, Recurrent memory for care tasks, Salt quantity estimation, Nutrient and chemical adjustment calculators, Extensive setting options

**Features:** Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AquaCalculator monthly | $3.99 | per month |
| AquaCalculator yearly | $19.99 | per year |
| A large coffee | $3.99 | one-time |
| Ice Tead and a Sandwich | $9.99 | one-time |
| Something to learn | $39.99 | one-time |


### Bluetosec Controller New

[App page](https://appshunter.io/ios/app/bluetosec-controller-new/id1623066431)

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

**In-app purchases:** none


## Frequently asked questions

### Is AquaCalculator free?

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

### Is Bluetosec Controller New free?

Bluetosec Controller New is free to download, with no in-app purchases.

### Do AquaCalculator or Bluetosec Controller New have ads?

Neither AquaCalculator nor Bluetosec Controller New shows ads.

### Which is updated more often, AquaCalculator or Bluetosec Controller New?

AquaCalculator ships an update every 3 weeks, and Bluetosec Controller New every 27 months. Most recently, AquaCalculator was updated on November 2, 2026 and Bluetosec Controller New 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.*