# Grayboe vs Strelok Internal Ballistics

The clearest difference is review sentiment: Grayboe at 100% against Strelok Internal Ballistics's 40%. Grayboe also leads on rating (5.0 vs 4.0) and in-app purchases (none vs 4). Strelok Internal Ballistics's advantage is update cadence (every 2 weeks vs every 5 weeks). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Strelok Internal Ballistics sells 4 in-app purchases, starting at $2.99 per month. Grayboe asks for nothing beyond the download.

Grayboe holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews point the same way: 100% of Grayboe's written reviews are positive against 40% of Strelok Internal Ballistics's.

Grayboe ships an update every 5 weeks, Strelok Internal Ballistics every 2 weeks. The most recent releases landed on October 21, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Grayboe | Strelok Internal Ballistics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/grayboe/id6757409676/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/strelok-internal-ballistics/id6781934024/reviews) |
| Number of ratings | **5** | 2 |
| Positive reviews | **100.0% of reviews** | 40.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | **Free** | Freemium |
| Size | 69 MB | 23 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Grayboe](https://appshunter.io/developer/1866724275) | [Strelok LLC](https://appshunter.io/developer/6790263134) |

## What reviewers say

### Grayboe

[App page](https://appshunter.io/ios/app/grayboe/id6757409676)

This app uses AI to analyze photos of your shooting targets, providing detailed metrics like group size and distance from the point of aim. It helps you track progress, manage equipment, and improve accuracy over time.

**Highlights:** AI-powered shot analysis, Group size and spread calculation, Progress tracking and trend analysis, Firearm and ammunition management, Cloud sync for data backup, Printable AI targets

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Strelok Internal Ballistics

[App page](https://appshunter.io/ios/app/strelok-internal-ballistics/id6781934024)

This app helps handloaders predict firearm load performance, analyze powder temperature sensitivity, and track rifle components. It offers a comprehensive database of published loads and allows users to calibrate predictions to their specific rifle and chronographed velocities. The tool operates offline and integrates with other apps in its ecosystem.

**Highlights:** Predict muzzle velocity and chamber pressure, Calibrate predictions to your rifle, Automatic velocity node and charge finding, Track powder temperature sensitivity, Offline database of 34,000+ loads, Logbook with component and chronograph data

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.99 | per month |
| Yearly Subscription | $19.99 | per year |
| Strelok QuickLoad Lifetime Suite | $19.99 | one-time |
| Strelok QuickLoad Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Grayboe free?

Grayboe is free to download, with no in-app purchases.

### Is Strelok Internal Ballistics free?

Strelok Internal Ballistics is free to download, with in-app purchases available.

### Which has better reviews, Grayboe or Strelok Internal Ballistics?

Grayboe is rated higher. Grayboe averages 5.0 out of 5 from 5 ratings, while Strelok Internal Ballistics averages 4.0 from 2 ratings.

### Do Grayboe or Strelok Internal Ballistics have ads?

Neither Grayboe nor Strelok Internal Ballistics shows ads.

### Which is updated more often, Grayboe or Strelok Internal Ballistics?

Grayboe ships an update every 5 weeks, and Strelok Internal Ballistics every 2 weeks. Most recently, Grayboe was updated on October 21, 2026 and Strelok Internal Ballistics on October 23, 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.*