# BOIL by Vesta vs A2O

BOIL by Vesta and A2O are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

BOIL by Vesta ships an update every 10 months, A2O every 11 months. The most recent releases landed on October 27, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | BOIL by Vesta | A2O |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/a2o/id6443875849/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 11 months |
| Monetization | — | Free |
| Size | 104 MB | 188 MB |
| Requires iOS | 14.2 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Pro Smart](https://appshunter.io/developer/1087882545) | [Aquaporin](https://appshunter.io/developer/1573920954) |

## What reviewers say

### BOIL by Vesta

[App page](https://appshunter.io/ios/app/boil-by-vesta/id1555014772)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is BOIL by Vesta free?

BOIL by Vesta is free to download, with no in-app purchases.

### Is A2O free?

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

### Do BOIL by Vesta or A2O have ads?

Neither BOIL by Vesta nor A2O shows ads.

### Which is updated more often, BOIL by Vesta or A2O?

BOIL by Vesta ships an update every 10 months, and A2O every 11 months. Most recently, BOIL by Vesta was updated on October 27, 2026 and A2O on November 3, 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.*