# Trach vs Collective Reflection

The clearest difference is in-app purchases: Collective Reflection at none against Trach's 1. Collective Reflection also leads on rating (5.0 vs 4.7). Trach's advantage is update cadence (every 2 weeks vs every 3 months) and ratings volume (13 vs 1). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Trach sells 1 one-off in-app purchase. Collective Reflection asks for nothing beyond the download.

Collective Reflection holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Trach has 13 ratings behind it against 1, so its average is the more settled of the two.

Trach ships an update every 2 weeks, Collective Reflection every 3 months. The most recent releases landed on October 23, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Trach | Collective Reflection |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (13 ratings)](https://appshunter.io/ios/app/trach-trachtenberg/id1502611431/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/collective-reflection/id6504116381/reviews)** |
| Number of ratings | **13** | 1 |
| Positive reviews | 93.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 6 MB | 119 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Giorgio Network, LLC](https://appshunter.io/developer/1502611430) | [Collective Reflection, LLC](https://appshunter.io/developer/1750944349) |

## What reviewers say

### Trach

[App page](https://appshunter.io/ios/app/trach-trachtenberg/id1502611431)

Master rapid mental math with this app, offering step-by-step tutorials and practice exercises for complex calculations. Learn and practice the Trachtenberg method to sharpen your number sense and multiply faster.

**Highlights:** Trachtenberg method tutorials, Practice exercises, Progress tracking, Mental math techniques, Rapid multiplication, Number sense development

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Multiply Tutorials | $4.99 | one-time |


### Collective Reflection

[App page](https://appshunter.io/ios/app/collective-reflection/id6504116381)

This app facilitates meaningful dialogue between individuals with differing viewpoints. It connects participants for discussions and offers real-time feedback from observers to foster understanding and community building.

**Highlights:** Pair participants with differing views, Live feedback from observers, Community building, Curiosity-driven discussions, Supports organizations and individuals

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

**In-app purchases:** none


## Frequently asked questions

### Is Trach free?

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

### Is Collective Reflection free?

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

### Which has better reviews, Trach or Collective Reflection?

Collective Reflection is rated higher. Trach averages 4.7 out of 5 from 13 ratings, while Collective Reflection averages 5.0 from 1 ratings.

### Do Trach or Collective Reflection have ads?

Neither Trach nor Collective Reflection shows ads.

### Which is updated more often, Trach or Collective Reflection?

Trach ships an update every 2 weeks, and Collective Reflection every 3 months. Most recently, Trach was updated on October 23, 2026 and Collective Reflection 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.*