# Reefability vs Picassa.io

The clearest difference is in-app purchases: Picassa.io at none against Reefability's 9. Reefability's advantage is update cadence (daily vs every 5 days) and device support (5 vs 3). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Reefability sells 9 in-app purchases, starting at $9.99 per month. Picassa.io asks for nothing beyond the download.

Reefability ships an update daily, Picassa.io every 5 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Reefability | Picassa.io |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (39 ratings)](https://appshunter.io/ios/app/reefability/id6636472070/reviews)** | — |
| Number of ratings | **39** | — |
| Positive reviews | 41.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Every 5 days |
| Monetization | Free with in-app purchases | — |
| Size | 123 MB | 57 MB |
| Requires iOS | 15.0.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Apple TV, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Reefability](https://appshunter.io/developer/1762764786) | [Irony studio s.r.o.](https://appshunter.io/developer/1800495054) |

## What reviewers say

### Reefability

[App page](https://appshunter.io/ios/app/reefability/id6636472070)

This app helps manage complex reef aquariums by integrating chemistry, livestock, lighting, and flow data. It provides AI-driven insights, guided setup, and pest identification to optimize tank health and coral growth.

**Highlights:** AI-driven reef tank analysis, Guided tank setup and cycling modes, 3D reef map with PAR and flow estimation, Chemistry logging via voice or photo, Dosing suggestions and supplement tracking, Livestock care sheets and compatibility reports, Pest identification and tracking, Weather and safety alerts

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1-Month | $9.99 | per month |
| Controller plan (monthly) | $11.99 | per month |
| 12-Month | $34.99 | per year |
| Controller plan (annual) | $49.99 | per year |
| Day pass | $1.99 | one-time |
| 5 tank rebuilds | $2.99 | one-time |
| Week pass | $4.99 | one-time |
| 15 tank rebuilds | $6.99 | one-time |
| Month pass | $12.99 | one-time |


### Picassa.io

[App page](https://appshunter.io/ios/app/picassaio-booking-and-chat/id6778449629)

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

**In-app purchases:** none


## Frequently asked questions

### Is Reefability free?

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

### Is Picassa.io free?

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

### Do Reefability or Picassa.io have ads?

Neither Reefability nor Picassa.io shows ads.

### Which is updated more often, Reefability or Picassa.io?

Reefability ships an update daily, and Picassa.io every 5 days. Most recently, Reefability was updated on October 30, 2026 and Picassa.io on October 24, 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.*