# AquaCalculator vs Diversa BT

The clearest difference is in-app purchases: Diversa BT at none against AquaCalculator's 5. Diversa BT also leads on iOS requirement (12.0 vs 18.6). 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. Diversa BT asks for nothing beyond the download.

## The numbers

| Metric | AquaCalculator | Diversa BT |
| --- | --- | --- |
| 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 | — |
| Monetization | Subscription | — |
| Size | 49 MB | 30 MB |
| Requires iOS | 18.6 | **12.0** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thallos](https://appshunter.io/developer/544488594) | [AQUAEL SP Z O O](https://appshunter.io/developer/1146413127) |

## 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 |


### Diversa BT

[App page](https://appshunter.io/ios/app/diversa-bt/id6483306384)

**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 Diversa BT free?

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

### Do AquaCalculator or Diversa BT have ads?

Neither AquaCalculator nor Diversa BT shows ads.

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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.*