# Bubbles vs Water Tracker

Bubbles and Water Tracker 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. Bubbles sells 2 in-app purchases, starting at $4.99 per month and Water Tracker sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Bubbles ships an update every 8 days, Water Tracker every 4 days. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Bubbles | Water Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 4 days** |
| Size | 24 MB | 378 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 12+ | 12+ |
| Developer | [Sunil PM](https://appshunter.io/developer/1896290467) | [NATHANIEL DASWANI](https://appshunter.io/developer/6798528069) |

## What reviewers say

### Bubbles

[App page](https://appshunter.io/ios/app/bubbles-step-tracker-pet-fish/id6766446326)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| Yearly Premium | $29.99 | per year |


### Water Tracker

[App page](https://appshunter.io/ios/app/water-tracker-sipling/id6798528067)

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sipling Plus Weekly | $3.99 | per 7 days |
| Sipling Plus Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Bubbles free?

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

### Is Water Tracker free?

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

### Do Bubbles or Water Tracker have ads?

Neither Bubbles nor Water Tracker shows ads.

### Which is updated more often, Bubbles or Water Tracker?

Bubbles ships an update every 8 days, and Water Tracker every 4 days. Most recently, Bubbles was updated on October 31, 2026 and Water Tracker on November 10, 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.*