# Spin Piscinas vs Poolistry

The clearest difference is in-app purchases: Spin Piscinas at none against Poolistry's 3. Spin Piscinas also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Poolistry sells 3 in-app purchases, starting at $1.99 per month. Spin Piscinas asks for nothing beyond the download.

Spin Piscinas ships an update every 8 days, Poolistry weekly. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Spin Piscinas | Poolistry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (26 ratings)](https://appshunter.io/ios/app/poolistry-pool-calculator/id6748267875/reviews)** |
| Number of ratings | — | **26** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 days | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 132 MB | 48 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [spin SA de CV](https://appshunter.io/developer/1099375421) | [Yonah Systems](https://appshunter.io/developer/1694042531) |

## What reviewers say

### Spin Piscinas

[App page](https://appshunter.io/ios/app/spin-piscinas/id6449788993)

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

**In-app purchases:** none


### Poolistry

[App page](https://appshunter.io/ios/app/poolistry-pool-calculator/id6748267875)

This app helps pool owners manage water chemistry and maintenance. It offers smart calculators for chemical adjustments, a comprehensive logging system for tests and tasks, and cloud backup for data synchronization across devices. Keep your pool crystal clear with ease.

**Highlights:** Smart chemical adjustment calculators, Water testing and readings log, Chemical addition tracking, Maintenance task logging, Cloud backup and sync, Expense and notes tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Poolistry - Premium - 1 Month | $1.99 | per month |
| Poolistry - Premium - 1 Year | $9.99 | per year |
| Lifetime Premium Access | $59.99 | one-time |


## Frequently asked questions

### Is Spin Piscinas free?

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

### Is Poolistry free?

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

### Do Spin Piscinas or Poolistry have ads?

Poolistry shows ads; Spin Piscinas does not.

### Which is updated more often, Spin Piscinas or Poolistry?

Spin Piscinas ships an update every 8 days, and Poolistry weekly. Most recently, Spin Piscinas was updated on October 27, 2026 and Poolistry on October 28, 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.*