# GrindStack vs Preflop Range Builder

The clearest difference is in-app purchases: Preflop Range Builder at none against GrindStack's 3. Preflop Range Builder also leads on update cadence (every 8 days vs every 5 weeks). GrindStack's advantage is ads (none vs shown) and iOS requirement (15.1 vs 17.0). On price and device support there is nothing between them.

Both are free to download. GrindStack sells 3 in-app purchases, starting at $4.99 per 7 days. Preflop Range Builder asks for nothing beyond the download.

GrindStack ships an update every 5 weeks, Preflop Range Builder every 8 days. The most recent releases landed on September 30, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | GrindStack | Preflop Range Builder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/grindstack-live-poker-tracker/id6744820078/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 8 days** |
| Monetization | Freemium | — |
| Size | 73 MB | 4 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jeremiah Moore](https://appshunter.io/developer/1695450531) | [Seishin Miyaji](https://appshunter.io/developer/1324900707) |

## What reviewers say

### GrindStack

[App page](https://appshunter.io/ios/app/grindstack-live-poker-tracker/id6744820078)

This app helps serious poker players track live game hands, opponent tendencies, and bankroll. It features a specialized keyboard for fast note-taking and AI-powered strategy insights. Analyze your game and build a player database to gain a competitive edge.

**Highlights:** Fast live game note-taking, Custom poker shorthand keyboard, Bankroll and session tracking, AI strategy insights, Hand history review and search, Player database building

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro Subscription | $4.99 | per 7 days |
| Monthly Pro Membership | $10.99 | per month |
| Pro Annual Subscription | $99.99 | per year |


### Preflop Range Builder

[App page](https://appshunter.io/ios/app/preflop-range-builder/id6811308271)

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

**In-app purchases:** none


## Frequently asked questions

### Is GrindStack free?

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

### Is Preflop Range Builder free?

Preflop Range Builder is free to download, with no in-app purchases.

### Do GrindStack or Preflop Range Builder have ads?

Preflop Range Builder shows ads; GrindStack does not.

### Which is updated more often, GrindStack or Preflop Range Builder?

GrindStack ships an update every 5 weeks, and Preflop Range Builder every 8 days. Most recently, GrindStack was updated on September 30, 2026 and Preflop Range Builder on October 13, 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.*