# Bluefish Controller 2 vs Dog Scan

The clearest difference is in-app purchases: Bluefish Controller 2 at none against Dog Scan's 4. Bluefish Controller 2 also leads on ads (none vs shown) and iOS requirement (9.0 vs 15.6). Dog Scan's advantage is update cadence (every 2 months vs every 16 months). On price and device support there is nothing between them.

Both are free to download. Dog Scan sells 4 in-app purchases, starting at $5.99 per 7 days. Bluefish Controller 2 asks for nothing beyond the download.

Bluefish Controller 2 ships an update every 16 months, Dog Scan every 2 months. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Bluefish Controller 2 | Dog Scan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.1 (16 ratings)](https://appshunter.io/ios/app/bluefish-controller-2/id1026265988/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 27.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 16 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 19 MB | 118 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Spencer Shepard](https://appshunter.io/developer/869912494) | [Manohar Varu](https://appshunter.io/developer/1741749388) |

## What reviewers say

### Bluefish Controller 2

[App page](https://appshunter.io/ios/app/bluefish-controller-2/id1026265988)

Manage your aquarium's lighting system directly from your mobile device. Simulate realistic environmental conditions like weather, sunrise, sunset, and moon phases for an immersive aquatic experience.

**Highlights:** Aquarium lighting control, Sunrise/sunset simulation, Moon phase simulation, Weather effects, Control from phone/tablet

**Features:** macOS Compatibility

**In-app purchases:** none


### Dog Scan

[App page](https://appshunter.io/ios/app/dog-scan-breed-identifier/id6739288906)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Breed Identifier One Week | $5.99 | per 7 days |
| Breed Identifier One Month | $14.99 | per month |
| Breed Identifier One year | $39.99 | per year |
| Breed Identifier Lifetime | $44.99 | one-time |


## Frequently asked questions

### Is Bluefish Controller 2 free?

Bluefish Controller 2 is free to download, with no in-app purchases.

### Is Dog Scan free?

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

### Do Bluefish Controller 2 or Dog Scan have ads?

Dog Scan shows ads; Bluefish Controller 2 does not.

### Which is updated more often, Bluefish Controller 2 or Dog Scan?

Bluefish Controller 2 ships an update every 16 months, and Dog Scan every 2 months. Most recently, Bluefish Controller 2 was updated on October 13, 2026 and Dog Scan on October 14, 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.*