# Nikon SpotOn vs AB Quantum

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.

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.

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.

Nikon SpotOn ships an update every 6 months, AB Quantum fortnightly. The most recent releases landed on October 14, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Nikon SpotOn | AB Quantum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (375 ratings)](https://appshunter.io/ios/app/nikon-spoton/id399224811/reviews) | **[4.7 (2.7K ratings)](https://appshunter.io/ios/app/ab-quantum/id785619104/reviews)** |
| Number of ratings | 375 | **2.7K** |
| Positive reviews | 21.9% of reviews | **44.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#119** |
| Size | 7 MB | 299 MB |
| Requires iOS | **14.5** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nikon Inc.](https://appshunter.io/developer/330046130) | [Applied Ballistics](https://appshunter.io/developer/785619107) |

## What reviewers say

### Nikon SpotOn

[App page](https://appshunter.io/ios/app/nikon-spoton/id399224811)

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:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- 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**

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


### AB Quantum

[App page](https://appshunter.io/ios/app/ab-quantum/id785619104)

**Currently charting:** #119 Top Grossing · Sports (US App Store)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Elite Monthly | $2.99 | per month |
| Professional Monthly | $3.99 | per month |
| Elite Annual | $19.99 | per year |
| Professional Annual | $29.99 | per year |
| Custom Drag Model (CDM) for Berger 0.264cal 140gr Target Hybrid | $1.99 | one-time |
| Custom Drag Model (CDM) for Sierra 0.308cal 175gr MatchKing | $1.99 | one-time |
| Custom Drag Model (CDM) for Hornady 0.264cal 140gr ELD Match | $1.99 | one-time |
| Custom Drag Model (CDM) for Hornady 0.264cal 143gr ELD X | $1.99 | one-time |
| Custom Drag Model (CDM) for Hornady 0.264cal 147gr ELD Match | $1.99 | one-time |
| AB Caliber 0.224 CDMs | $9.99 | one-time |
| AB Caliber 0.243 CDMs | $9.99 | one-time |
| AB Caliber 0.264 CDMs | $9.99 | one-time |
| AB Caliber 0.284 CDMs | $9.99 | one-time |
| AB Caliber 0.308 CDMs | $9.99 | one-time |
| AB Caliber 0.338 CDMs | $9.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

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

**Requested features**

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


## Frequently asked 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 18, 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.*