# e vs Preflop Dojo

The clearest difference is rating: Preflop Dojo at 5.0 against e's 3.7. Preflop Dojo also leads on update cadence (every 4 weeks vs every 3 months). e's advantage is monetization model (free vs freemium) and ratings volume (3 vs 1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. e sells 3 in-app purchases, starting at $22.99 per 3 months and Preflop Dojo sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

Preflop Dojo holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

e ships an update every 3 months, Preflop Dojo every 4 weeks. The most recent releases landed on October 2, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | e | Preflop Dojo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/e-rocks/id1479976121/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/preflop-dojo-poker-trainer/id6751606607/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Monetization | **Free** | Freemium |
| Size | 52 MB | 10 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Mark Wrigley](https://appshunter.io/developer/1479976120) | [Precision Play Ltd](https://appshunter.io/developer/1836025148) |

## What reviewers say

### e

[App page](https://appshunter.io/ios/app/e-rocks/id1479976121)

Access a comprehensive database of over 6200 mineral species with detailed facts, including names, formulas, occurrences, and properties. This offline-capable app provides quick lookups and links to a larger online mineral catalog.

**Highlights:** 6200+ mineral species database, Detailed species information, Offline access, Links to e-Rocks.com catalog, Quick and easy to use

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| e-Rocks Collectors 3 Months | $22.99 | per 3 months |
| e-Rocks Collectors 6 Months | $39.00 | per 6 months |
| e-Rocks Collectors Annual | $79.00 | per year |


### Preflop Dojo

[App page](https://appshunter.io/ios/app/preflop-dojo-poker-trainer/id6751606607)

Master preflop poker strategy with this GTO trainer. Practice realistic tournament scenarios, access a vast library of ranges, and track your progress to improve decision-making under pressure.

**Highlights:** GTO preflop trainer with instant feedback, Comprehensive library of solver-approved ranges, Structured drills (Katas) for targeted practice, Progress tracking and performance monitoring, Realistic tournament scenarios and stack depths, ICM-adjusted strategy for final tables

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Preflop Dojo Premium - Monthly | $12.99 | per month |
| Preflop Dojo Premium - Annual | $129.99 | per year |


## Frequently asked questions

### Is e free?

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

### Is Preflop Dojo free?

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

### Which has better reviews, e or Preflop Dojo?

Preflop Dojo is rated higher. e averages 3.7 out of 5 from 3 ratings, while Preflop Dojo averages 5.0 from 1 ratings.

### Do e or Preflop Dojo have ads?

Neither e nor Preflop Dojo shows ads.

### Which is updated more often, e or Preflop Dojo?

e ships an update every 3 months, and Preflop Dojo every 4 weeks. Most recently, e was updated on October 2, 2026 and Preflop Dojo 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.*