# Hydraulic Pressure Calculator vs CrapsTracker

Hydraulic Pressure Calculator and CrapsTracker both sit at 5.0 stars, but that hides the real split: 100% of CrapsTracker's written reviews are positive against 0% of Hydraulic Pressure Calculator's. CrapsTracker also leads on price (Free vs $2.99) and update cadence (every 3 months vs every 27 months). Hydraulic Pressure Calculator's advantage is in-app purchases (none vs 2) and iOS requirement (13 vs 15.0). On rating, ads and device support there is nothing between them.

CrapsTracker is free to download; Hydraulic Pressure Calculator costs $2.99 up front. CrapsTracker sells 2 in-app purchases, starting at $0.99 per month. Hydraulic Pressure Calculator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Hydraulic Pressure Calculator against 5.0 for CrapsTracker. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews are what separate them: 0% of Hydraulic Pressure Calculator's written reviews are positive against 100% of CrapsTracker's.

Hydraulic Pressure Calculator ships an update every 27 months, CrapsTracker every 3 months. The most recent releases landed on October 24, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Hydraulic Pressure Calculator | CrapsTracker |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/hydraulic-pressure-calculator/id1420373327/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/crapstracker/id6578455018/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 3 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 1 MB | 9 MB |
| Requires iOS | **13** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [ELH Technologies](https://appshunter.io/developer/1759467049) |

## What reviewers say

### Hydraulic Pressure Calculator

[App page](https://appshunter.io/ios/app/hydraulic-pressure-calculator/id1420373327)

This physics and math calculator determines the force generated by a piston-cylinder based on pneumatic or hydraulic pressure and bore diameter. It provides instant calculations with copyable results and includes reference formulas. Supports various units and high decimal precision.

**Highlights:** Instant calculation, Copyable results, Included formulas, Supports 16 decimal places, Multiple unit support, Lightweight and optimized

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

**In-app purchases:** none


### CrapsTracker

[App page](https://appshunter.io/ios/app/crapstracker/id6578455018)

Track your craps games with detailed statistics, individual roller performance, and roll analysis. Identify trends and probabilities to inform your betting strategy. Offers advanced insights with an optional Pro upgrade.

**Highlights:** Manage multiple game sessions, Log individual rolls with precision, Track roller performance, Real-time point and come out roll status, Comprehensive roll frequency statistics, Compare stats to expected probabilities, Identify infrequent rolls

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced Statistics Monthly | $0.99 | per month |
| Advanced Statistics Yearly | $9.99 | per year |


## Frequently asked questions

### Is Hydraulic Pressure Calculator free?

Hydraulic Pressure Calculator costs $2.99, with no in-app purchases.

### Is CrapsTracker free?

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

### Which has better reviews, Hydraulic Pressure Calculator or CrapsTracker?

Hydraulic Pressure Calculator and CrapsTracker are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Do Hydraulic Pressure Calculator or CrapsTracker have ads?

Neither Hydraulic Pressure Calculator nor CrapsTracker shows ads.

### Which is updated more often, Hydraulic Pressure Calculator or CrapsTracker?

Hydraulic Pressure Calculator ships an update every 27 months, and CrapsTracker every 3 months. Most recently, Hydraulic Pressure Calculator was updated on October 24, 2026 and CrapsTracker on October 1, 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.*