# PlasticityLab vs Dolphin Dive Hydration

The clearest difference is in-app purchases: PlasticityLab at none against Dolphin Dive Hydration's 2. PlasticityLab also leads on update cadence (every 2 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Dolphin Dive Hydration sells 2 in-app purchases, starting at $2.99 per month. PlasticityLab asks for nothing beyond the download.

PlasticityLab ships an update every 2 days, Dolphin Dive Hydration every 3 weeks. The most recent releases landed on September 27, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | PlasticityLab | Dolphin Dive Hydration |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/plasticitylab/id6765711315/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 5 MB | 42 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Evan Folan](https://appshunter.io/developer/1896045672) | [PHOEBE POHL](https://appshunter.io/developer/6786387072) |

## What reviewers say

### PlasticityLab

[App page](https://appshunter.io/ios/app/plasticitylab/id6765711315)

Engage in brief, personalized daily brain exercises designed to enhance memory, focus, processing speed, and word-finding abilities. Track your progress and set reminders to build consistent mental fitness. This app is not a medical device.

**Highlights:** Memory exercises, Word finding practice, Focus and attention training, Processing speed drills, Adaptive difficulty, Progress tracking, Daily reminders

**Features:** macOS Compatibility

**In-app purchases:** none


### Dolphin Dive Hydration

[App page](https://appshunter.io/ios/app/dolphin-dive-hydration/id6786387070)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dolphin Dive Monthly Premium | $2.99 | per month |
| Dolphin Dive Premium | $19.99 | per year |


## Frequently asked questions

### Is PlasticityLab free?

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

### Is Dolphin Dive Hydration free?

Dolphin Dive Hydration is free to download, with in-app purchases available.

### Do PlasticityLab or Dolphin Dive Hydration have ads?

Neither PlasticityLab nor Dolphin Dive Hydration shows ads.

### Which is updated more often, PlasticityLab or Dolphin Dive Hydration?

PlasticityLab ships an update every 2 days, and Dolphin Dive Hydration every 3 weeks. Most recently, PlasticityLab was updated on September 27, 2026 and Dolphin Dive Hydration on October 14, 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.*