# Deepstash vs Perfusion Mind

The clearest difference is review sentiment: Perfusion Mind at 100% against Deepstash's 30%. Perfusion Mind also leads on rating (5.0 vs 4.7). Deepstash's advantage is update cadence (every 4 days vs every 2 months) and ratings volume (88K vs 5). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Deepstash sells 9 in-app purchases, starting at $12.99 per month and Perfusion Mind sells 5 in-app purchases, starting at $4.00 per month. Whichever you choose, the download price is not the number that matters.

Perfusion Mind holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Deepstash has 88K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 30% of Deepstash's written reviews are positive against 100% of Perfusion Mind's.

Deepstash ships an update every 4 days, Perfusion Mind every 2 months. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Deepstash | Perfusion Mind |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (88K ratings)](https://appshunter.io/ios/app/deepstash-smarter-every-day/id1445023295/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/perfusion-mind/id6741581190/reviews)** |
| Number of ratings | **88K** | 5 |
| Positive reviews | 30.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 months |
| Monetization | Freemium | Freemium |
| Best chart rank | **#4** | — |
| Size | 160 MB | 50 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Brainstash, Inc](https://appshunter.io/developer/1445023294) | [Perfusion Mind, LLC](https://appshunter.io/developer/1794763897) |

## What reviewers say

### Deepstash

[App page](https://appshunter.io/ios/app/deepstash-smarter-every-day/id1445023295)

**Currently charting:** #4 Top Free · Education, #45 Top Grossing · Education (US App Store)

Discover bite-sized knowledge from popular books in just 5 minutes a day. Beautifully designed idea cards condense profound thoughts into memorable, visual insights. Fuel your curiosity and grow smarter with curated content tailored to your interests.

**Highlights:** Bite-sized knowledge cards, Curated insights from popular books, Personalized content feeds, Organize ideas into collections, Share discoveries with friends, Offline access (Pro)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly Subscription | $12.99 | per month |
| Pro Monthly Subscription | $19.99 | per month |
| Pro 3 Months Subscription | $29.99 | per 3 months |
| Pro 3 Months Subscription | $59.99 | per 3 months |
| Pro Yearly Subscription | $69.99 | per year |
| Pro Yearly Subscription | $69.99 | per year |
| Pro Yearly Subscription | $89.99 | per year |
| Pro Yearly Subscription | $89.99 | per year |
| Pro Yearly Subscription | $99.99 | per year |

**What reviewers like**

- 🧠 Helpful for learning and dissociation from social media
- 👍 Smooth interface and good delivery of content
- 🤓 Effective platform for quick self-help and coaching resources
- 📚 Provides access to useful books and articles
- 🧠 Promotes well-being and replaces mindless scrolling

**What reviewers complain about**

- 💰 Aggressive monetization and paywall
- 🤯 Annoying sales tactics and constant prompts to upgrade
- 🤔 Limited functionality in free version
- 🐛 Buggy and crashes frequently
- 🤔 Shallow content and lack of depth

**Reported bugs**

- Login details not working
- Subscription issues and difficulty getting refunds
- Inability to edit or remove saved content
- Frequent crashes and loading issues

**Requested features**

- Add ability to save and organize content without subscription
- Improve search and discovery of relevant content
- Provide more in-depth and diverse content
- Add audio/podcast functionality
- Improve overall user experience and reduce distractions


### Perfusion Mind

[App page](https://appshunter.io/ios/app/perfusion-mind/id6741581190)

An AI-powered platform for perfusionists, students, and ECMO specialists. Access in-depth knowledge, research articles, and perform calculations. Developed by practicing professionals, it's a comprehensive tool for enhancing understanding and practice in perfusion.

**Highlights:** AI-powered learning platform, Trained on broad perfusion topics, Resource for perfusionists and students, Access peer-reviewed articles, Perform quick calculations, Developed by Certified Clinical Perfusionists

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic - Monthly Subscription | $4.00 | per month |
| Premium - Monthly Subscription | $7.00 | per month |
| Basic - Yearly Subscription | $45.00 | per year |
| Premium - Yearly Subscription | $75.00 | per year |
| Pro - Yearly Subscription | $150.00 | per year |


## Frequently asked questions

### Is Deepstash free?

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

### Is Perfusion Mind free?

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

### Which has better reviews, Deepstash or Perfusion Mind?

Perfusion Mind is rated higher. Deepstash averages 4.7 out of 5 from 88K ratings, while Perfusion Mind averages 5.0 from 5 ratings.

### Do Deepstash or Perfusion Mind have ads?

Neither Deepstash nor Perfusion Mind shows ads.

### Which is updated more often, Deepstash or Perfusion Mind?

Deepstash ships an update every 4 days, and Perfusion Mind every 2 months. Most recently, Deepstash was updated on November 5, 2026 and Perfusion Mind on October 30, 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.*