# Auryn vs Gulpo

The clearest difference is ads: Gulpo at none against Auryn's shown. Gulpo also leads on update cadence (every 2 days vs every 5 days). Auryn's advantage is iOS requirement (15.5 vs 26.1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Auryn sells 3 in-app purchases, starting at $2.49 per month and Gulpo sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Auryn ships an update every 5 days, Gulpo every 2 days. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Auryn | Gulpo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/gulpo/id6800241908/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 60 MB | 31 MB |
| Requires iOS | **15.5** | 26.1 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Abdel Rojas](https://appshunter.io/developer/6794475697) | [Raja Vijayaraman](https://appshunter.io/developer/562575890) |

## What reviewers say

### Auryn

[App page](https://appshunter.io/ios/app/auryn-smart-hydration/id6794475694)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.49 | per month |
| Yearly Premium | $14.99 | per year |
| Lifetime Premium | $24.99 | one-time |


### Gulpo

[App page](https://appshunter.io/ios/app/gulpo/id6800241908)

This app helps you track your hydration by visualizing your progress and offering flexible logging methods. It accounts for water content in various beverages and adjusts goals based on factors like weather and workouts. Your data is kept private and synced via iCloud.

**Highlights:** Pace line visualization for hydration progress, Flexible logging: manual, voice, camera, bottle tracking, Accounts for water content in various beverages, Dynamic goal adjustment based on weather and workouts, Private data storage and iCloud syncing

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $9.99 | per year |
| Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Auryn free?

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

### Is Gulpo free?

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

### Do Auryn or Gulpo have ads?

Auryn shows ads; Gulpo does not.

### Which is updated more often, Auryn or Gulpo?

Auryn ships an update every 5 days, and Gulpo every 2 days. Most recently, Auryn was updated on October 5, 2026 and Gulpo on October 12, 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.*