Comparison

AB Quantum vs ShootOnTime

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

ShootOnTime

This app provides a simple and efficient par timer for shooting practice, suitable for both dry firing at home and live fire at the range. It focuses on tracking par times to help users improve their performance without collecting any user data.

Highlights
  • Par time tracking
  • Dry fire training
  • Live fire practice
  • Performance enhancement
  • Simple interface
  • Privacy focused
Features
Read full description

ShootOnTime is an entirely free and easy-to-use par timer application. Whether you're dry firing at home or honing your skills at the range, our app is designed to serve you as an efficient tool for increasing your performance. With an emphasis on simplicity and functionality, ShootOnTime eliminates the complexities found in many timer apps, making it an ideal companion for both novice and experienced shooters alike. PRIVACY: We Respect Your Data At ShootOnTime, we hold your privacy in the highest regard. Rest assured, we do not collect or store any data input by users within the app. Your trust is important to us, and we are committed to ensuring a secure user experience. NOTE:  Please be aware that ShootOnTime does NOT register or detect the audible firing of firearms. The app focuses solely on par time tracking for your shooting practices.

Screenshots

AB Quantum4 screens
ShootOnTime4 screens

Verdict

The call

The clearest difference is review sentiment: ShootOnTime at 90% against AB Quantum's 45%. ShootOnTime also leads on in-app purchases (none vs 15) and rating (4.9 vs 4.7). AB Quantum's advantage is chart position (#111 vs unranked). On price, ratings volume, 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. ShootOnTime asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ShootOnTime holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 2.7K and 1.1K respectively. Written reviews point the same way: 45% of AB Quantum's written reviews are positive against 90% of ShootOnTime's.

UpkeepUpdate frequency

AB Quantum ships an update fortnightly, ShootOnTime weekly. Both last shipped on October 15, 2026.

Scorecard6 real differences · 5 level
AB Quantum versus ShootOnTime: the parameters behind the verdict, then further details
ParameterAB QuantumShootOnTime
PriceFreeFree
Rating4.7 (2.7K ratings)4.9 (1.1K ratings) — better
Positive reviews44.9% of reviews90.5% of reviews — better
Number of ratings2.7K — better1.1K
Update frequencyFortnightlyWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#111 — better—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better17.0
Further details — not scored
Size299 MB9 MB
Age rating4+4+
DeveloperApplied BallisticsLiberApps

Customer experience

AB Quantum

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

ShootOnTime

All ratings1,092 ratings
Positive98.5%
Neutral0.7%
Negative0.7%
Written reviews84 reviews
Positive90.5%
Neutral4.8%
Negative4.8%

User reviews

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

ShootOnTime

From 1.1K App Store ratings

What we love

  • 🚀 Great for dry fire practice
  • 👍 Simple and easy to use
  • 👍 Intuitive design
  • 👍 Customizable par times
  • 👍 Useful for indoor ranges

Room to improve

  • 🐛 Difficulty hearing the timer beep
  • 🐛 Unable to track or display shot times
  • 🐛 Inability to rename or delete presets
  • 🐛 Timer stops when screen locks

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

ShootOnTime

Reported bugs

2 issues
  • Unable to enter decimal values for par times
  • Forced updates at inconvenient times

Requested features

5 requests
  • Ability to measure split times
  • Option to set more than 5 par times
  • Ability to adjust tone volume or use custom sounds
  • Ability to export/import settings between devices
  • Option to count up instead of count down

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

ShootOnTime

No in-app purchases

Questions

Is AB Quantum free?
AB Quantum is free to download, with in-app purchases available.
Is ShootOnTime free?
ShootOnTime is free to download, with no in-app purchases.
Which has better reviews, AB Quantum or ShootOnTime?
ShootOnTime is rated higher. AB Quantum averages 4.7 out of 5 from 2.7K ratings, while ShootOnTime averages 4.9 from 1.1K ratings.
Do AB Quantum or ShootOnTime have ads?
Neither AB Quantum nor ShootOnTime shows ads.
Which is updated more often, AB Quantum or ShootOnTime?
AB Quantum ships an update fortnightly, and ShootOnTime weekly. Most recently, AB Quantum was updated on October 15, 2026 and ShootOnTime on October 15, 2026.

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