# GrindXP vs AquaTick Water Tracker

The clearest difference is in-app purchases: GrindXP at none against AquaTick Water Tracker's 2. GrindXP also leads on ads (none vs shown) and iOS requirement (15.1 vs 26.0). AquaTick Water Tracker's advantage is update cadence (every 3 days vs every 3 weeks). On price and device support there is nothing between them.

Both are free to download. AquaTick Water Tracker sells 2 in-app purchases, starting at $0.99 per month. GrindXP asks for nothing beyond the download.

GrindXP ships an update every 3 weeks, AquaTick Water Tracker every 3 days. The most recent releases landed on October 10, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | GrindXP | AquaTick Water Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 37 MB | 154 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [ION ANGHEL](https://appshunter.io/developer/1888938894) | [Byunghak Ko](https://appshunter.io/developer/1633815618) |

## What reviewers say

### GrindXP

[App page](https://appshunter.io/ios/app/grindxp/id6761328314)

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

**In-app purchases:** none


### AquaTick Water Tracker

[App page](https://appshunter.io/ios/app/aquatick-water-tracker/id6762686013)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AquaTick Pro Monthly | $0.99 | per month |
| AquaTick Pro Yearly | $5.99 | per year |


## Frequently asked questions

### Is GrindXP free?

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

### Is AquaTick Water Tracker free?

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

### Do GrindXP or AquaTick Water Tracker have ads?

AquaTick Water Tracker shows ads; GrindXP does not.

### Which is updated more often, GrindXP or AquaTick Water Tracker?

GrindXP ships an update every 3 weeks, and AquaTick Water Tracker every 3 days. Most recently, GrindXP was updated on October 10, 2026 and AquaTick Water Tracker on October 18, 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.*