# AquariumManager Pro vs Encyclopedia

The clearest difference is review sentiment: Encyclopedia at 50% against AquariumManager Pro's 0%. Encyclopedia also leads on in-app purchases (none vs 1) and update cadence (fortnightly vs every 2 months). AquariumManager Pro's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. AquariumManager Pro sells 1 in-app purchase, starting at $8.99 per year. Encyclopedia asks for nothing beyond the download.

AquariumManager Pro ships an update every 2 months, Encyclopedia fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AquariumManager Pro | Encyclopedia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (75 ratings)](https://appshunter.io/ios/app/encyclopedia-25000-plus-topic/id1603908136/reviews)** |
| Number of ratings | — | **75** |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Subscription | **Ad-supported** |
| Size | 49 MB | 65 MB |
| Requires iOS | 18.6 | **15.4** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Thallos](https://appshunter.io/developer/544488594) | [Anas Almomany](https://appshunter.io/developer/1359573791) |

## What reviewers say

### AquariumManager Pro

[App page](https://appshunter.io/ios/app/aquariummanager-pro/id1550841277)

This reference app provides a comprehensive encyclopedia of aquarium inhabitants, starting with saltwater species. It offers detailed information on corals, anemones, fish, invertebrates, and plants, with plans to expand coverage. Users can access all content with a valid yearly subscription.

**Highlights:** Aquarium inhabitant encyclopedia, Covers corals, anemones, fish, invertebrates, plants, Focus on saltwater aquariums, Regular updates and extensions, Information from various sources

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aquarium Manager access | $8.99 | per year |


### Encyclopedia

[App page](https://appshunter.io/ios/app/encyclopedia-25000-plus-topic/id1603908136)

Access a vast digital encyclopedia with over 25,000 topics and articles covering nature, cities, and more. Read content or have it read aloud, and explore over 100 high-definition images per article. Discover popular places in over 1000 cities worldwide.

**Highlights:** 25,000+ topics and articles, 10 diverse categories, Read-aloud functionality, 100+ HD images per article, Search 1000+ cities, Save wallpapers, Video content

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

**In-app purchases:** none


## Frequently asked questions

### Is AquariumManager Pro free?

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

### Is Encyclopedia free?

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

### Do AquariumManager Pro or Encyclopedia have ads?

Encyclopedia shows ads; AquariumManager Pro does not.

### Which is updated more often, AquariumManager Pro or Encyclopedia?

AquariumManager Pro ships an update every 2 months, and Encyclopedia fortnightly. Most recently, AquariumManager Pro was updated on October 24, 2026 and Encyclopedia 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.*