# A2O vs Nexa Platform

The clearest difference is rating: Nexa Platform at 5.0 against A2O's 2.0. Nexa Platform also leads on update cadence (every 8 days vs every 11 months) and ratings volume (12 vs 1). A2O's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Nexa Platform holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: Nexa Platform has 12 ratings behind it against 1, so its average is the more settled of the two.

A2O ships an update every 11 months, Nexa Platform every 8 days. The most recent releases landed on June 1, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | A2O | Nexa Platform |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/a2o/id6443875849/reviews) | **[5.0 (12 ratings)](https://appshunter.io/ios/app/nexa-platform/id6523428563/reviews)** |
| Number of ratings | 1 | **12** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 8 days** |
| Monetization | Free | Free |
| Size | 188 MB | 68 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Aquaporin](https://appshunter.io/developer/1573920954) | [Watts Water Technologies](https://appshunter.io/developer/844447908) |

## What reviewers say

### A2O

[App page](https://appshunter.io/ios/app/a2o/id6443875849)

Manage your water purifier from your smartphone, track real-time water usage, and receive timely filter change reminders. Access product manuals and helpful water information.

**Highlights:** Connect and manage water purifier, Track real-time water usage, Filter change reminders, Maintenance guidance, Access product manuals, View purification effectiveness

**In-app purchases:** none


### Nexa Platform

[App page](https://appshunter.io/ios/app/nexa-platform/id6523428563)

This platform offers intelligent water management for commercial buildings, providing visibility and control over water systems. It helps reduce the risk of water damage, improve efficiency, and achieve sustainability goals by conserving water and energy.

**Highlights:** Risk reduction for water damage, Efficiency improvement for water assets, Sustainability achievements, Water and energy conservation, Visibility and control of water systems

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

**In-app purchases:** none


## Frequently asked questions

### Is A2O free?

A2O is free to download, with no in-app purchases.

### Is Nexa Platform free?

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

### Which has better reviews, A2O or Nexa Platform?

Nexa Platform is rated higher. A2O averages 2.0 out of 5 from 1 ratings, while Nexa Platform averages 5.0 from 12 ratings.

### Do A2O or Nexa Platform have ads?

Neither A2O nor Nexa Platform shows ads.

### Which is updated more often, A2O or Nexa Platform?

A2O ships an update every 11 months, and Nexa Platform every 8 days. Most recently, A2O was updated on June 1, 2026 and Nexa Platform on September 16, 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.*