# Poolistry vs ZeroPool

The clearest difference is in-app purchases: ZeroPool at none against Poolistry's 3. ZeroPool also leads on ads (none vs shown). Poolistry's advantage is update cadence (weekly vs every 5 months). On price, device support and iOS requirement there is nothing between them.

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

Poolistry ships an update weekly, ZeroPool every 5 months. The most recent releases landed on October 13, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Poolistry | ZeroPool |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 47 MB | 49 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Yonah Systems](https://appshunter.io/developer/1694042531) | [BlueCore BV](https://appshunter.io/developer/1890859176) |

## What reviewers say

### 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 |


### ZeroPool

[App page](https://appshunter.io/ios/app/zeropool/id6761682490)

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

**In-app purchases:** none


## Frequently asked questions

### Is Poolistry free?

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

### Is ZeroPool free?

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

### Do Poolistry or ZeroPool have ads?

Poolistry shows ads; ZeroPool does not.

### Which is updated more often, Poolistry or ZeroPool?

Poolistry ships an update weekly, and ZeroPool every 5 months. Most recently, Poolistry was updated on October 13, 2026 and ZeroPool on September 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.*