# HYDROPLUS 4.0 vs Highness

The clearest difference is in-app purchases: HYDROPLUS 4.0 at none against Highness's 2. HYDROPLUS 4.0 also leads on device support (3 vs 1) and iOS requirement (11.0 vs 16.4). On price, update cadence and ads there is nothing between them.

Both are free to download. Highness sells 2 in-app purchases, starting at $4.99 per year. HYDROPLUS 4.0 asks for nothing beyond the download.

HYDROPLUS 4.0 ships an update every 6 weeks, Highness every 4 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | HYDROPLUS 4.0 | Highness |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (61 ratings)](https://appshunter.io/ios/app/highness-cannabis-journal/id1508004326/reviews)** |
| Number of ratings | — | **61** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 55 MB | 6 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [VYR S.A.](https://appshunter.io/developer/1328836531) | [Pedro Canelas](https://appshunter.io/developer/1508004325) |

## What reviewers say

### HYDROPLUS 4.0

[App page](https://appshunter.io/ios/app/hydroplus-40/id1474956686)

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

**In-app purchases:** none


### Highness

[App page](https://appshunter.io/ios/app/highness-cannabis-journal/id1508004326)

Log your cannabis experiences with this easy-to-use diary. Track strains, feelings, thoughts, and photos from your sessions. Discover your favorite highs and understand your journey.

**Highlights:** Log cannabis strains, Record feelings and thoughts, Add photos to entries, Track favorite trips, User-friendly diary interface

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Highness Plus Annual | $4.99 | per year |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is HYDROPLUS 4.0 free?

HYDROPLUS 4.0 is free to download, with no in-app purchases.

### Is Highness free?

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

### Do HYDROPLUS 4.0 or Highness have ads?

Neither HYDROPLUS 4.0 nor Highness shows ads.

### Which is updated more often, HYDROPLUS 4.0 or Highness?

HYDROPLUS 4.0 ships an update every 6 weeks, and Highness every 4 weeks. Most recently, HYDROPLUS 4.0 was updated on October 29, 2026 and Highness on October 25, 2026.

---

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