Comparison

AB Quantum vs WikiArms Ammo & Firearm Engine

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AB Quantum

This app provides a comprehensive ballistics solver and profile management tool for long-range shooting. It features a new user interface designed for single-handed use, enabling quick solutions and seamless integration with Bluetooth-enabled devices. Users can sync gun profiles, create customizable range cards, and access an updated reticle library.

Highlights
  • Ballistics solver
  • Profile management
  • Bluetooth device integration
  • Customizable range/target cards
  • Reticle library
  • Ballistic truing
  • Chronograph integration
Features
Currently charting
Read full description

Applied Ballistics Quantum™ is a state-of-the-art app integrating the most complete ballistics solver and profile management tool for long-range shooting. Featuring an all new user-interface, AB Quantum™ includes a host of new tools and features that will enable shooters and hunters to be more successful in the field. AB Quantum™ creates a new paradigm for ballistic solvers and integration with Bluetooth®-enabled devices. With a host of new features, the platform is designed to save time and add performance for users of all skill levels. The all new user-interface is designed with single-handed use in mind, putting all major features just a swipe or tap away from any screen, which allows users to rapidly obtain solutions in the field or at a match. The simplicity and versatility of the app interface creates an intuitive experience for both new and experienced users. Two new features - AB Quantum Connect™ and AB Quantum Sync™ - enable users to quickly connect to other AB-enabled devices and sync gun profiles between them in seconds, as well as back those profiles up to an encrypted server for peace of mind and easy restoration. The new platform automatically saves changes made to rifle profiles and updates connected devices without the user needing to do anything. For competitors or hunters, AB Quantum™ includes customizable Range and Multi-Target tables. This allows users to lay out the displayed information to exactly what they need to hit their target. After creating a range or target card, it can easily be shared via email. Built with the future in mind, the new AB Quantum™ platform allows for continuous innovation. At launch the following new features will be available: • AB Quantum™ User Interface - Take control of ballistic data and find solutions with ease using the new layout designed with one-handed operation in mind. • New Bluetooth® Device Manager - Find and connect AB Bluetooth® devices quickly and send data between devices using AB Quantum Connect™. • AB Quantum Sync™ - User gun profiles are automatically uploaded to an encrypted server to allow easy access for other devices and backup, providing peace of mind and security. • Customizable Range Card and Target Card Modes - The new expandable and customizable range and target card modes allow users to select what data to see for each Range or Target. Use the share function to send range and data cards in just seconds. • New Reticle Library - The AB Reticle library is hosted online and updates in AB Quantum™ automatically, providing users with up-to-date solution drawing for their favorite rifle scopes. • Improved Truing Interface - Easy to access ballistic truing features without leaving solution screens. • Chronograph Integration - Connect Bluetooth®-enabled chronographs - such as the Optex Systems SpeedTracker™ - directly to the app and save the velocity data to rifle profiles.

About

WikiArms Ammo & Firearm Engine

Easily find the best prices on ammunition, reloading supplies, firearms, and parts from over 500 stores. Filter by caliber, case type, and more to locate specific items quickly. This app aggregates deals from various retailers, directing you to sellers for purchase.

Highlights
  • Find ammo and firearm deals
  • Search 500+ stores
  • Filter by caliber and case type
  • Browse firearm parts and reloading components
  • Direct links to sellers
Features
Read full description

WikiArms offers the fastest and easiest way to find the best deals on ammo, reloading, firearms and parts. You can search through 500+ stores with just a few clicks away! Whether you are looking for the best quality parts for your firearms or the lowest prices of ammo, we have it listed. We organized all the information in a simple, clear, and easily accessible format. Once you choose a caliber, you can add specific filters like: - Brass case - Steel case - Reloads - Subsonic - Firearm - Good deals Look for the best-priced 1911's in 10mm. Browse through AR parts, reloading components, mags, AK pistols/rifles... Find almost anything firearm related, you name it! Please note that we do not sell anything, instead, we offer you a simple and fast way to search for the lowest prices from different vendors and retailers in one place. When you're ready to purchase, it's easy to access the seller's page from the app. Download Wikiarms today and find the best deals!

Screenshots

AB Quantum4 screens
WikiArms Ammo & Firearm Engine4 screens

Verdict

The call

The clearest difference is rating: AB Quantum at 4.7 against WikiArms Ammo & Firearm Engine's 3.2. AB Quantum also leads on update cadence (fortnightly vs every 5 months) and ratings volume (2.9K vs 121). WikiArms Ammo & Firearm Engine's advantage is in-app purchases (none vs 15) and iOS requirement (12.0 vs 16.0). On price, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. AB Quantum sells 15 in-app purchases, starting at $2.99 per month. WikiArms Ammo & Firearm Engine asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

AB Quantum holds the better App Store score, 4.7 against 3.2. That said, the two scores are not equally well evidenced: AB Quantum has 2.9K ratings behind it against 121, so its average is the more settled of the two. Written reviews point the same way: 45% of AB Quantum's written reviews are positive against 42% of WikiArms Ammo & Firearm Engine's.

UpkeepUpdate frequency

AB Quantum ships an update fortnightly, WikiArms Ammo & Firearm Engine every 5 months. Both last shipped on October 26, 2026.

Scorecard7 real differences · 4 level
AB Quantum versus WikiArms Ammo & Firearm Engine: the parameters behind the verdict, then further details
ParameterAB QuantumWikiArms Ammo & Firearm Engine
PriceFreeFree
Rating4.7 (2.9K ratings) — better3.2 (121 ratings)
Positive reviews45.2% of reviews — better42.3% of reviews
Number of ratings2.9K — better121
Update frequencyFortnightly — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#102 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.012.0 — better
Further details — not scored
Size466 MB19 MB
Age rating4+17+
DeveloperApplied BallisticsApps 47, Inc

Customer experience

AB Quantum

All ratings2,859 ratings
Positive93.9%
Neutral2.0%
Negative4.2%
Written reviews259 reviews
Positive45.2%
Neutral12.0%
Negative42.9%

WikiArms Ammo & Firearm Engine

All ratings122 ratings
Positive52.5%
Neutral5.7%
Negative41.8%
Written reviews71 reviews
Positive42.3%
Neutral7.0%
Negative50.7%

User reviews

AB Quantum

From 2.9K App Store ratings

What we love

  • 🚀 Best ballistic app
  • 👍 Accurate ballistic calculations
  • 👍 Comprehensive features
  • 👍 Great support
  • 👍 Easy to use once set up

Room to improve

  • 🐛 Buggy after updates
  • 🐛 Connectivity issues with Kestrel
  • 🐛 Glitches with user interface
  • 👎 Difficult to navigate
  • 👎 Outdated interface

WikiArms Ammo & Firearm Engine

From 121 App Store ratings

What we love

  • 👍 Great app for comparing ammo prices
  • 👍 Finds great deals
  • 👍 Useful for tracking ammo pricing trends
  • 👍 Good deals on all ammos
  • 👍 Wide range of selection

Room to improve

  • 🐛 App doesn't work
  • 🐛 SSL error prevents connection
  • 🐛 Filters don't work
  • 🐛 Out of stock products dominate listings
  • 🐛 Prices don't match websites

Bugs and requests

AB Quantum

Reported bugs

4 issues
  • Bullet BC not retaining custom values
  • Profiles disappearing after updates
  • Atmospheric data not syncing correctly
  • Ballistics calculations not matching real-world data

Requested features

5 requests
  • Apple Watch app
  • More reticle options
  • Metric unit support
  • Backup and restore functionality
  • Improved range card and target card features

WikiArms Ammo & Firearm Engine

Reported bugs

13 issues
  • SSL error has occurred and a secure connection to the server cannot be made
  • App crashes when going to search
  • Filters don't work (e.g., hide steel)
  • Links to ammo open to out-of-stock pages
  • App no longer links to web addresses
Show 8 more
  • Search for .223 federal only yields no results
  • App doesn't connect to servers
  • App doesn't open after repeated restarts
  • Clicking links on the app takes through an affiliate link that never loads in safari
  • Out of stock products and outdated prices dominate listings
  • Prices don't match websites
  • 26 cents turns into 32 cents
  • Frontier Sports Supply shorted shipment

Requested features

10 requests
  • Expand search engine to include different types of firearms
  • Add shipping to ammo prices to get the real price
  • Filter defensive rounds or hollow points vs ball head rounds
  • Expand on the stores listed
  • Would be even better if it did reloading components
Show 5 more
  • Improvements design wise, features wise
  • Dark mode option
  • Ability to filter by manufacturer
  • Ability to exclude steel cased ammo
  • Include shipping costs in price comparison

In-app purchases

15 purchases

AB Quantum

Subscriptions4
  • Elite Monthly$2.991 Month
  • Professional Monthly$3.991 Month
  • Elite Annual$19.991 Year
Show 1 more
  • Professional Annual3 Days trial$29.991 Year
One-time11
  • Custom Drag Model (CDM) for Berger 0.264cal 140gr Target Hybrid$1.99
  • Custom Drag Model (CDM) for Sierra 0.308cal 175gr MatchKing$1.99
  • Custom Drag Model (CDM) for Hornady 0.264cal 140gr ELD Match$1.99
Show 8 more
  • Custom Drag Model (CDM) for Hornady 0.264cal 143gr ELD X$1.99
  • Custom Drag Model (CDM) for Hornady 0.264cal 147gr ELD Match$1.99
  • AB Caliber 0.224 CDMs$9.99
  • AB Caliber 0.243 CDMs$9.99
  • AB Caliber 0.264 CDMs$9.99
  • AB Caliber 0.284 CDMs$9.99
  • AB Caliber 0.308 CDMs$9.99
  • AB Caliber 0.338 CDMs$9.99
None

WikiArms Ammo & Firearm Engine

No in-app purchases

Questions

Is AB Quantum free?
AB Quantum is free to download, with in-app purchases available.
Is WikiArms Ammo & Firearm Engine free?
WikiArms Ammo & Firearm Engine is free to download, with no in-app purchases.
Which has better reviews, AB Quantum or WikiArms Ammo & Firearm Engine?
AB Quantum is rated higher. AB Quantum averages 4.7 out of 5 from 2.9K ratings, while WikiArms Ammo & Firearm Engine averages 3.2 from 121 ratings.
Do AB Quantum or WikiArms Ammo & Firearm Engine have ads?
Neither AB Quantum nor WikiArms Ammo & Firearm Engine shows ads.
Which is updated more often, AB Quantum or WikiArms Ammo & Firearm Engine?
AB Quantum ships an update fortnightly, and WikiArms Ammo & Firearm Engine every 5 months. Most recently, AB Quantum was updated on October 26, 2026 and WikiArms Ammo & Firearm Engine on October 26, 2026.

Other comparisons