# Qstream vs HBDI®

The clearest difference is review sentiment: HBDI® at 81% against Qstream's 0%. HBDI® also leads on ratings volume (98 vs 1). Qstream's advantage is rating (5.0 vs 4.6) and iOS requirement (13.4 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Qstream holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: HBDI® has 98 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 0% of Qstream's written reviews are positive against 81% of HBDI®'s, so the app with the better star average is not the one people write more warmly about.

Qstream ships an update every 3 months, HBDI® every 6 weeks. The most recent releases landed on June 7, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Qstream | HBDI® |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/qstream/id646616168/reviews)** | [4.6 (98 ratings)](https://appshunter.io/ios/app/hbdi/id953195592/reviews) |
| Number of ratings | 1 | **98** |
| Positive reviews | 0.0% of reviews | **81.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 14 MB | 50 MB |
| Requires iOS | **13.4** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Qstream](https://appshunter.io/developer/646618291) | [Herrmann International, Inc.](https://appshunter.io/developer/953195591) |

## What reviewers say

### Qstream

[App page](https://appshunter.io/ios/app/qstream/id646616168)

This enterprise solution offers microlearning and knowledge reinforcement to boost team performance. It leverages neuroscience principles for enhanced retention and engagement, providing data-driven insights into performance readiness. Ideal for organizations seeking to upskill and reskill their workforce.

**Highlights:** Microlearning for knowledge reinforcement, Personalized and agile learning experience, Scientifically proven retention and engagement, Data-driven performance insights, Supports upskilling and reskilling, Global deployment in multiple languages

**Features:** macOS Compatibility

**In-app purchases:** none


### HBDI®

[App page](https://appshunter.io/ios/app/hbdi/id953195592)

Access and explore your personal HBDI® Thinking Styles assessment results. This app offers interactive tools to understand your thinking preferences, apply Whole Brain® Thinking, and share insights with others. Enhance communication, problem-solving, and decision-making.

**Highlights:** Interactive HBDI® profile exploration, Personalized tips for communication and problem-solving, Create 'Guesstimated' profiles for others, Tools to apply Whole Brain® Thinking, Share HBDI® Profile badge on social media, Understand thinking under pressure

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Qstream free?

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

### Is HBDI® free?

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

### Which has better reviews, Qstream or HBDI®?

Qstream is rated higher. Qstream averages 5.0 out of 5 from 1 ratings, while HBDI® averages 4.6 from 98 ratings.

### Do Qstream or HBDI® have ads?

Neither Qstream nor HBDI® shows ads.

### Which is updated more often, Qstream or HBDI®?

Qstream ships an update every 3 months, and HBDI® every 6 weeks. Most recently, Qstream was updated on June 7, 2026 and HBDI® on September 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.*