# Hornady Reloading Guide vs Surface Air Consumption

The clearest difference is review sentiment: Surface Air Consumption at 100% against Hornady Reloading Guide's 32%. Surface Air Consumption also leads on in-app purchases (none vs 3) and update cadence (weekly vs every 2 months). Hornady Reloading Guide's advantage is ratings volume (17K vs 2). On price, ads and device support there is nothing between them.

Both are free to download. Hornady Reloading Guide sells 3 in-app purchases, starting at $19.99 per year. Surface Air Consumption asks for nothing beyond the download.

Surface Air Consumption holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Hornady Reloading Guide has 17K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 32% of Hornady Reloading Guide's written reviews are positive against 100% of Surface Air Consumption's.

Hornady Reloading Guide ships an update every 2 months, Surface Air Consumption weekly. The most recent releases landed on September 25, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Hornady Reloading Guide | Surface Air Consumption |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (17K ratings)](https://appshunter.io/ios/app/hornady-reloading-guide/id1451643677/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/surface-air-consumption/id1532974489/reviews)** |
| Number of ratings | **17K** | 2 |
| Positive reviews | 31.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 71 MB | 1 MB |
| Requires iOS | 15.0 | **13.6** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Hornady](https://appshunter.io/developer/1254568421) | [Leridian Dynamics, Inc.](https://appshunter.io/developer/1356342542) |

## What reviewers say

### Hornady Reloading Guide

[App page](https://appshunter.io/ios/app/hornady-reloading-guide/id1451643677)

Access comprehensive reloading data for hundreds of cartridges and bullets, based on extensive testing. Purchase individual data sets, the entire current edition, or subscribe for continuous updates and full access to all data on your mobile device.

**Highlights:** Reloading data for 200+ cartridges, Data for 300+ bullets, Safe data based on controlled testing, Purchase individual cartridge data, Purchase full handbook edition, Subscription for all data and updates

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reloading Guide Subscription | $19.99 | per year |
| Hornady Point | $0.99 | one-time |
| 20 Hornady Points | $19.99 | one-time |

**What reviewers like**

- 🚀 Comprehensive reloading data
- 📱 Convenient mobile access
- 👍 Helpful range log and notes features
- 🔍 Ability to purchase individual cartridges

**What reviewers complain about**

- 🐛 Frequent crashes and errors
- 💰 Paywall for accessing data
- 🔒 Account and login issues
- 🤔 Confusing navigation and UI

**Reported bugs**

- Purchased data disappearing or inaccessible
- Unable to log in or access account
- Blank screens and unknown errors
- Compatibility issues with newer iOS versions

**Requested features**

- Offline access to data
- Improved range log with more details
- Seamless integration with in-app purchases
- Support for more powder and bullet options


### Surface Air Consumption

[App page](https://appshunter.io/ios/app/surface-air-consumption/id1532974489)

This utility calculates surface air consumption (SAC) rates and air needs at depth using only user-provided dive profile data. It does not compute nitrogen absorption or decompression limits. Always prioritize safety and consult official decompression tables.

**Highlights:** Calculates SAC Rate, Estimates air requirements at depth, User input based calculations, Dive profile analysis, Focuses solely on air consumption

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hornady Reloading Guide free?

Hornady Reloading Guide is free to download, with in-app purchases available.

### Is Surface Air Consumption free?

Surface Air Consumption is free to download, with no in-app purchases.

### Which has better reviews, Hornady Reloading Guide or Surface Air Consumption?

Surface Air Consumption is rated higher. Hornady Reloading Guide averages 4.6 out of 5 from 17K ratings, while Surface Air Consumption averages 5.0 from 2 ratings.

### Do Hornady Reloading Guide or Surface Air Consumption have ads?

Neither Hornady Reloading Guide nor Surface Air Consumption shows ads.

### Which is updated more often, Hornady Reloading Guide or Surface Air Consumption?

Hornady Reloading Guide ships an update every 2 months, and Surface Air Consumption weekly. Most recently, Hornady Reloading Guide was updated on September 25, 2026 and Surface Air Consumption on June 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.*