# Geca Watch by Hydrostasis vs 2nd Intelligence

The clearest difference is in-app purchases: Geca Watch by Hydrostasis at none against 2nd Intelligence's 2. 2nd Intelligence's advantage is update cadence (every 4 days vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 2nd Intelligence sells 2 in-app purchases, starting at $4.99 per month. Geca Watch by Hydrostasis asks for nothing beyond the download.

Geca Watch by Hydrostasis ships an update every 5 weeks, 2nd Intelligence every 4 days. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Geca Watch by Hydrostasis | 2nd Intelligence |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/geca-watch-by-hydrostasis/id6476198463/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 62 MB | 148 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hydrostasis Inc.](https://appshunter.io/developer/1466028949) | [ORNATE APPS PRIVATE LIMITED](https://appshunter.io/developer/1726725605) |

## What reviewers say

### Geca Watch by Hydrostasis

[App page](https://appshunter.io/ios/app/geca-watch-by-hydrostasis/id6476198463)

This app helps you monitor your hydration levels using a connected device that measures skin hydration. It provides real-time updates, personalized recommendations for water intake, and tracks your daily and weekly hydration trends to promote better health and wellness.

**Highlights:** Skin hydration measurement, Real-time updates, Personalized water intake recommendations, Daily and weekly hydration trend tracking, Habit building for optimal hydration

**Features:** macOS Compatibility

**In-app purchases:** none


### 2nd Intelligence

[App page](https://appshunter.io/ios/app/2nd-intelligence/id6761412932)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $49.99 | per year |


## Frequently asked questions

### Is Geca Watch by Hydrostasis free?

Geca Watch by Hydrostasis is free to download, with no in-app purchases.

### Is 2nd Intelligence free?

2nd Intelligence is free to download, with in-app purchases available.

### Do Geca Watch by Hydrostasis or 2nd Intelligence have ads?

Neither Geca Watch by Hydrostasis nor 2nd Intelligence shows ads.

### Which is updated more often, Geca Watch by Hydrostasis or 2nd Intelligence?

Geca Watch by Hydrostasis ships an update every 5 weeks, and 2nd Intelligence every 4 days. Most recently, Geca Watch by Hydrostasis was updated on October 24, 2026 and 2nd Intelligence on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*