# Aquarimate vs AquaCalculator

The clearest difference is price: AquaCalculator at Free against Aquarimate's $9.99. Aquarimate's advantage is rating (4.4 vs 3.7) and ratings volume (626 vs 12). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

AquaCalculator is free to download; Aquarimate costs $9.99 up front. Aquarimate sells 2 in-app purchases, starting at $9.99 per year and AquaCalculator sells 5 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Aquarimate holds the better App Store score, 4.4 against 3.7. That said, the two scores are not equally well evidenced: Aquarimate has 626 ratings behind it against 12, so its average is the more settled of the two. Written reviews complicate that: 64% of Aquarimate's written reviews are positive against 67% of AquaCalculator's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 10, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Aquarimate | AquaCalculator |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.4 (626 ratings)](https://appshunter.io/ios/app/aquarimate/id587215055/reviews)** | [3.7 (12 ratings)](https://appshunter.io/ios/app/aquacalculator/id1449511522/reviews) |
| Number of ratings | **626** | 12 |
| Positive reviews | 64.4% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 48 MB | 49 MB |
| Requires iOS | **14.0** | 18.6 |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, Mac, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [WiseLogic Inc](https://appshunter.io/developer/554628754) | [Thallos](https://appshunter.io/developer/544488594) |

## What reviewers say

### Aquarimate

[App page](https://appshunter.io/ios/app/aquarimate/id587215055)

Manage freshwater and saltwater aquariums with this comprehensive app. Track parameters, schedule tasks, log activities, and access a vast livestock library with compatibility advice. Organize notes, expenses, and photos, with cloud backup and cross-device syncing.

**Highlights:** Unlimited aquarium management, Parameter test result logging, Customizable tank parameters, Advanced unit converters and dosing calculators, Husbandry task scheduling and reminders, Comprehensive livestock library (Aquaribase), Photo gallery and expense tracking

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Additional 1 GB For Aquarimate Cloud Storage Service | $9.99 | per year |
| Aquarimate Live Subscription | $9.99 | per year |

**What reviewers like**

- 💻 Great app for managing aquariums
- 📊 Excellent data tracking and graphing
- ⏰ Helpful reminders and task management
- 🗂️ Comprehensive database of aquatic life
- 🤖 Useful calculators and tools

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 💰 Expensive with additional subscription fees
- 🕸️ Outdated and clunky user interface
- 🗃️ Limited database of fish and plants
- 🔍 Poor customer support and lack of updates

**Reported bugs**

- App crashes when accessing settings
- Water parameter data not saving correctly
- Livestock information not syncing across devices
- Calculators providing inaccurate results
- Calendar integration not working as expected

**Requested features**

- Ability to copy settings and data across tanks
- More advanced analytics and reporting
- Improved syncing and cross-device access
- Expanded database of aquatic species
- Customizable dashboards and views


### 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 |


## Frequently asked questions

### Is Aquarimate free?

Aquarimate costs $9.99, and also offers in-app purchases.

### Is AquaCalculator free?

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

### Which has better reviews, Aquarimate or AquaCalculator?

Aquarimate is rated higher. Aquarimate averages 4.4 out of 5 from 626 ratings, while AquaCalculator averages 3.7 from 12 ratings.

### Do Aquarimate or AquaCalculator have ads?

Neither Aquarimate nor AquaCalculator shows ads.

### Which is updated more often, Aquarimate or AquaCalculator?

Aquarimate ships an update every 3 weeks, and AquaCalculator every 3 weeks. Most recently, Aquarimate was updated on November 10, 2026 and AquaCalculator on November 2, 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.*