Hornady Reloading Guide vs Surface Air Consumption
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hornady Reloading Guide
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.
- 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
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Derived from extensive testing by Hornady Manufacturing Company, this app includes reloading data for over 200 cartridges and 300 bullets. Under carefully controlled conditions using the components and test equipment specified, we report only data that proved safe in our research. Users have the ability to purchase data for individual cartridges, purchase the whole current edition of the handbook, or subscribe and receive the entire handbook plus more. Subscription provides access to all handbook data on your mobile device and real updates for all new data without waiting for the new handbook publication to be produced.
Surface Air Consumption
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.
- Calculates SAC Rate
- Estimates air requirements at depth
- User input based calculations
- Dive profile analysis
- Focuses solely on air consumption
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This software calculates Surface Air Consumption (SAC Rate) and air requirements at depth based on user input data ONLY. This software DOES NOT calculate nitrogen absorption and/or decompression limits. Please see US Navy decompression tables for that information. This software only calculates how much air is required based on user entered data and dive profile. Know your limits and dive within them. Always error on the side of safety. Leridian Dynamics, Inc. assumes no liability for the use and/or misuse of this software.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Hornady Reloading Guide | Surface Air Consumption |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (17K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 31.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 17K — better | 2 |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.6 — better |
| Further details — not scored | ||
| Size | 71 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | Hornady | Leridian Dynamics, Inc. |
Customer experience
Hornady Reloading Guide
Surface Air Consumption
Bugs and requests
Hornady Reloading Guide
Reported bugs
4 issues- 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
4 requests- 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
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Hornady Reloading Guide
- Reloading Guide Subscription$19.991 Year
- Hornady Point$0.99
- 20 Hornady Points$19.99
Surface Air Consumption
No in-app purchases
Questions
Is Hornady Reloading Guide free?
Is Surface Air Consumption free?
Which has better reviews, Hornady Reloading Guide or Surface Air Consumption?
Do Hornady Reloading Guide or Surface Air Consumption have ads?
Which is updated more often, Hornady Reloading Guide or Surface Air Consumption?
Other comparisons
