# Pool Smart vs Reefability

The clearest difference is price: Reefability at Free against Pool Smart's $1.99. Reefability also leads on update cadence (daily vs every 4 months). Pool Smart's advantage is rating (4.5 vs 3.1) and in-app purchases (none vs 9). On ratings volume, ads, device support and iOS requirement there is nothing between them.

Reefability is free to download; Pool Smart costs $1.99 up front. Reefability sells 9 in-app purchases, starting at $9.99 per month. Pool Smart asks for nothing beyond the download.

Pool Smart holds the better App Store score, 4.5 against 3.1. Both are backed by a comparable volume of ratings — 13 and 36 respectively. Written reviews point the same way: 64% of Pool Smart's written reviews are positive against 38% of Reefability's.

Pool Smart ships an update every 4 months, Reefability daily. The most recent releases landed on October 6, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Pool Smart | Reefability |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.5 (13 ratings)](https://appshunter.io/ios/app/pool-smart/id454088813/reviews)** | [3.1 (36 ratings)](https://appshunter.io/ios/app/reefability/id6636472070/reviews) |
| Number of ratings | 13 | **36** |
| Positive reviews | **64.3% of reviews** | 38.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#195** | — |
| Size | 7 MB | 81 MB |
| Requires iOS | 15.0 | 15.0.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [BetterWay Apps LLC](https://appshunter.io/developer/454088816) | [Reefability](https://appshunter.io/developer/1762764786) |

## What reviewers say

### Pool Smart

[App page](https://appshunter.io/ios/app/pool-smart/id454088813)

**Currently charting:** #195 Top Paid · Productivity (US App Store)

This app simplifies pool maintenance by teaching water balance and calculating precise chemical dosages based on your pool's size and construction. It helps you save money and achieve sparkling clean water with less guesswork.

**Highlights:** Water balance education, Chemical dosage calculation, Pool size and construction input, Testing checklist, Money-saving tips, Clorine pool support

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

**In-app purchases:** none


### Reefability

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

This AI-powered app offers scientific precision for managing coral reef aquariums. It analyzes microbiome health, water chemistry, and light optimization, and can identify issues from tank photos. It provides tools for hobbyists and professionals to maintain thriving reef ecosystems.

**Highlights:** AI-driven analysis of reef tank health, Smart photo diagnostics for issue identification, Evidence-based solutions and recommendations, Ecosystem stability insights, Professional tools for reef stores and professionals, Integrated parameter monitoring

**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 |


## Frequently asked questions

### Is Pool Smart free?

Pool Smart costs $1.99, with no in-app purchases.

### Is Reefability free?

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

### Which has better reviews, Pool Smart or Reefability?

Pool Smart is rated higher. Pool Smart averages 4.5 out of 5 from 13 ratings, while Reefability averages 3.1 from 36 ratings.

### Do Pool Smart or Reefability have ads?

Neither Pool Smart nor Reefability shows ads.

### Which is updated more often, Pool Smart or Reefability?

Pool Smart ships an update every 4 months, and Reefability daily. Most recently, Pool Smart was updated on October 6, 2026 and Reefability on October 20, 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.*