# Fish Tank Log vs PadVitals

The clearest difference is in-app purchases: PadVitals at none against Fish Tank Log's 3. Fish Tank Log's advantage is update cadence (every 2 weeks vs monthly) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Fish Tank Log sells 3 in-app purchases, starting at $3.99 per month. PadVitals asks for nothing beyond the download.

Fish Tank Log ships an update every 2 weeks, PadVitals monthly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Fish Tank Log | PadVitals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/fish-tank-log/id6757759234/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Freemium | — |
| Size | 48 MB | 8 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Toolit Media LLC](https://appshunter.io/developer/1331221462) | [Hiroki Nakayama](https://appshunter.io/developer/1774149699) |

## What reviewers say

### Fish Tank Log

[App page](https://appshunter.io/ios/app/fish-tank-log/id6757759234)

This app helps aquarium enthusiasts track and manage their tanks. Log water parameters, schedule maintenance reminders, and record tank activities. An AI assistant provides guidance and answers questions to ensure consistent aquarium care.

**Highlights:** Create profiles for multiple tanks, Track water parameters with charts, Set maintenance reminders, Log tank activities chronologically, AI assistant for guidance and questions, Support for freshwater, saltwater, planted, and shrimp tanks

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fish Tank Log Pro | $3.99 | per month |
| Fish Tank Log Pro | $19.99 | per year |
| Fish Tank Log Pro | $29.99 | per year |


### PadVitals

[App page](https://appshunter.io/ios/app/padvitals-controller-test/id6795436049)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fish Tank Log free?

Fish Tank Log is free to download, with in-app purchases available.

### Is PadVitals free?

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

### Do Fish Tank Log or PadVitals have ads?

Neither Fish Tank Log nor PadVitals shows ads.

### Which is updated more often, Fish Tank Log or PadVitals?

Fish Tank Log ships an update every 2 weeks, and PadVitals monthly. Most recently, Fish Tank Log was updated on November 5, 2026 and PadVitals on October 31, 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.*