# Luma D Light vs Water AI

The clearest difference is update cadence: Water AI at every 11 days against Luma D Light's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Luma D Light ships an update every 3 months, Water AI every 11 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Luma D Light | Water AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/water-ai-hydration-tracker/id6749095112/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 11 days** |
| Monetization | — | Free with in-app purchases |
| Size | 28 MB | 42 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [Lumanova](https://appshunter.io/developer/1819870587) | [James Agib](https://appshunter.io/developer/1633578976) |

## What reviewers say

### Luma D Light

[App page](https://appshunter.io/ios/app/luma-d-light/id6747105940)

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

**In-app purchases:** none


### Water AI

[App page](https://appshunter.io/ios/app/water-ai-hydration-tracker/id6749095112)

This app helps you stay hydrated by creating a personalized plan based on your lifestyle. Simply log your drinks by taking a photo, and receive instant insights into their hydration value. It offers reminders and tools to make tracking simple, personal, and fun.

**Highlights:** Personalized hydration plan, Drink logging via photo, Instant hydration insights, Hydration reminders, Lifestyle-based tracking, Simple and fun interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Luma D Light free?

Luma D Light is free to download, with no in-app purchases.

### Is Water AI free?

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

### Do Luma D Light or Water AI have ads?

Neither Luma D Light nor Water AI shows ads.

### Which is updated more often, Luma D Light or Water AI?

Luma D Light ships an update every 3 months, and Water AI every 11 days. Most recently, Luma D Light was updated on October 30, 2026 and Water AI on October 24, 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.*