Comparison

Nikon SpotOn vs AB Quantum

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

Head to head
About

Nikon SpotOn

This app calculates precise aiming points for Nikon BDC reticle riflescopes. It also provides instant sighting references for other Nikon riflescopes with various reticle types. The tool helps users determine optimal shooting solutions before firing a shot.

Highlights
  • Precise aiming points for BDC reticles
  • Sighting references for other Nikon reticles
  • Rangefinder integration
  • Load comparison
  • Atmospheric condition adjustments
  • Field reference chart creation
Features
Read full description

Spot On Ballistic Match Technology provides precise aiming points for any Nikon BDC reticle riflescope and instant reference for sighting in other Nikon riflescopes with plex, MilDot or standard crosshair reticles. All you need is a rifle, a Nikon riflescope and a rangefinder…SpotOn does all the work for you, showing you what the possibilities are before you ever fire a shot! Includes sections for handloaders, atmospheric conditions, comparing loads as well as the ability to create and email a field reference chart.

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
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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.

Screenshots

Nikon SpotOn4 screens
AB Quantum4 screens

Verdict

The call

The clearest difference is rating: AB Quantum at 4.7 against Nikon SpotOn's 2.1. AB Quantum also leads on update cadence (fortnightly vs every 6 months) and review sentiment (45% vs 22%). Nikon SpotOn's advantage is in-app purchases (none vs 15) and iOS requirement (14.5 vs 16.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. AB Quantum sells 15 in-app purchases, starting at $2.99 per month. Nikon SpotOn asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

AB Quantum holds the better App Store score, 4.7 against 2.1. That said, the two scores are not equally well evidenced: AB Quantum has 2.7K ratings behind it against 375, so its average is the more settled of the two. Written reviews point the same way: 22% of Nikon SpotOn's written reviews are positive against 45% of AB Quantum's.

UpkeepUpdate frequency

Nikon SpotOn ships an update every 6 months, AB Quantum fortnightly. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

Scorecard8 real differences · 3 level
Nikon SpotOn versus AB Quantum: the parameters behind the verdict, then further details
ParameterNikon SpotOnAB Quantum
PriceFreeFree
Rating2.1 (375 ratings)4.7 (2.7K ratings) — better
Positive reviews21.9% of reviews44.9% of reviews — better
Number of ratings3752.7K — better
Update frequencyEvery 6 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank—#106 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.5 — better16.0
Further details — not scored
Size7 MB299 MB
Age rating4+4+
DeveloperNikon Inc.Applied Ballistics

Customer experience

Nikon SpotOn

All ratings375 ratings
Positive22.1%
Neutral6.9%
Negative70.9%
Written reviews137 reviews
Positive21.9%
Neutral12.4%
Negative65.7%

AB Quantum

All ratings2,695 ratings
Positive93.8%
Neutral2.0%
Negative4.2%
Written reviews256 reviews
Positive44.9%
Neutral11.7%
Negative43.4%

User reviews

Nikon SpotOn

From 375 App Store ratings

What we love

  • 🚀 Accurate ballistic calculations
  • 💡 Extensive caliber and ammo options
  • 👍 Helpful for muzzleloader and rifle scopes
  • 🎯 Improved shooting accuracy and confidence

Room to improve

  • 🐛 Frequent crashes and freezes
  • 🔍 Missing scope and ammo options
  • 🔌 Compatibility issues with newer devices
  • 🔍 Unreliable data and incorrect ballistics

AB Quantum

From 2.7K 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

Bugs and requests

Nikon SpotOn

Reported bugs

4 issues
  • App crashes when selecting bullet or ammo
  • Incorrect muzzle velocity and ballistic data
  • Scope options not showing up for some users
  • Weather data not loading properly

Requested features

4 requests
  • Ability to save multiple scope and ammo profiles
  • Option to manually input barrel length
  • Metric unit support
  • Improved weather data integration

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

In-app purchases

None

Nikon SpotOn

No 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

Questions

Is Nikon SpotOn free?
Nikon SpotOn is free to download, with no in-app purchases.
Is AB Quantum free?
AB Quantum is free to download, with in-app purchases available.
Which has better reviews, Nikon SpotOn or AB Quantum?
AB Quantum is rated higher. Nikon SpotOn averages 2.1 out of 5 from 375 ratings, while AB Quantum averages 4.7 from 2.7K ratings.
Do Nikon SpotOn or AB Quantum have ads?
Neither Nikon SpotOn nor AB Quantum shows ads.
Which is updated more often, Nikon SpotOn or AB Quantum?
Nikon SpotOn ships an update every 6 months, and AB Quantum fortnightly. Most recently, Nikon SpotOn was updated on October 14, 2026 and AB Quantum on October 15, 2026.

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