# Fishtank vs Focus Dive

The clearest difference is in-app purchases: Focus Dive at none against Fishtank's 4. Fishtank's advantage is update cadence (every 4 days vs every 11 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Fishtank sells 4 one-off in-app purchases. Focus Dive asks for nothing beyond the download.

Fishtank ships an update every 4 days, Focus Dive every 11 days. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Fishtank | Focus Dive |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/fishtank-focus-app/id6747935306/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 11 days |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 62 MB |
| Requires iOS | 18.2 | 18.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jiajun Zhang](https://appshunter.io/developer/1819165423) | [Seung Ah Shin](https://appshunter.io/developer/1867877223) |

## What reviewers say

### Fishtank

[App page](https://appshunter.io/ios/app/fishtank-focus-app/id6747935306)

Enhance your concentration with a unique approach to productivity. This app gamifies focus sessions, allowing you to build a virtual aquarium filled with discovered fish. Earn rewards and track your progress as you stay on task.

**Highlights:** Customizable focus session lengths, App blocking for distraction prevention, Ambient background options, Progress tracking, Earn mystery lootboxes, Discover and collect rare fish, Virtual aquarium simulation

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Platinum Lootbox | $0.99 | one-time |
| Unlock Backgrounds | $1.99 | one-time |
| Speed Boost | $1.99 | one-time |
| 10x Platinum Lootboxes | $6.99 | one-time |


### Focus Dive

[App page](https://appshunter.io/ios/app/focus-dive-study-work-timer/id6760871510)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fishtank free?

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

### Is Focus Dive free?

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

### Do Fishtank or Focus Dive have ads?

Neither Fishtank nor Focus Dive shows ads.

### Which is updated more often, Fishtank or Focus Dive?

Fishtank ships an update every 4 days, and Focus Dive every 11 days. Most recently, Fishtank was updated on September 30, 2026 and Focus Dive on October 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.*