# Strelok Internal Ballistics vs FieldSolve

The clearest difference is in-app purchases: FieldSolve at none against Strelok Internal Ballistics's 4. FieldSolve also leads on update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

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

Strelok Internal Ballistics ships an update every 2 weeks, FieldSolve every 4 days. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Strelok Internal Ballistics | FieldSolve |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/strelok-internal-ballistics/id6781934024/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 23 MB | 28 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Strelok LLC](https://appshunter.io/developer/6790263134) | [EX Corporation Oy](https://appshunter.io/developer/1391053704) |

## What reviewers say

### Strelok Internal Ballistics

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

This app helps precision handloaders develop and predict firearm cartridge loads. It analyzes components, forecasts performance, and logs your data for smarter development. It's an offline reference with a vast catalog of published loads.

**Highlights:** Predict muzzle velocity and chamber pressure, Live chart with over-pressure warning, Calibrate engine to your rifle and powder, Automatic velocity node and lowest-spread charge finder, Track powder temperature sensitivity, Browse 34,000+ published loads offline, Log loads with component details 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 |


### FieldSolve

[App page](https://appshunter.io/ios/app/fieldsolve-ballistic-calc/id6788091639)

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

**In-app purchases:** none


## Frequently asked questions

### Is Strelok Internal Ballistics free?

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

### Is FieldSolve free?

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

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

Neither Strelok Internal Ballistics nor FieldSolve shows ads.

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

Strelok Internal Ballistics ships an update every 2 weeks, and FieldSolve every 4 days. Most recently, Strelok Internal Ballistics was updated on November 12, 2026 and FieldSolve on November 13, 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.*