# True Proof vs TRACE Ballistics

The clearest difference is price: TRACE Ballistics at Free against True Proof's $9.99. TRACE Ballistics also leads on update cadence (every 6 days vs every 4 months). True Proof's advantage is iOS requirement (12.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

TRACE Ballistics is free to download; True Proof costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

True Proof ships an update every 4 months, TRACE Ballistics every 6 days. The most recent releases landed on September 12, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | True Proof | TRACE Ballistics |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/true-proof/id901015790/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 days** |
| Monetization | Paid | — |
| Size | 8 MB | 37 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Greg Miller](https://appshunter.io/developer/901015793) | [Wouter Theron](https://appshunter.io/developer/1896715274) |

## What reviewers say

### True Proof

[App page](https://appshunter.io/ios/app/true-proof/id901015790)

This app calculates the true proof of water-alcohol mixtures based on hydrometer readings and temperature. It also performs gauging calculations and dilutions, accounting for temperature-dependent mixing. Results can be logged, annotated, and emailed for record-keeping.

**Highlights:** True proof calculation, Gauging calculations, Dilution calculations, Temperature compensation, Log and email results, Multiple unit support

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

**In-app purchases:** none


### TRACE Ballistics

[App page](https://appshunter.io/ios/app/trace-ballistics/id6770094995)

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

**In-app purchases:** none


## Frequently asked questions

### Is True Proof free?

True Proof costs $9.99, with no in-app purchases.

### Is TRACE Ballistics free?

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

### Do True Proof or TRACE Ballistics have ads?

Neither True Proof nor TRACE Ballistics shows ads.

### Which is updated more often, True Proof or TRACE Ballistics?

True Proof ships an update every 4 months, and TRACE Ballistics every 6 days. Most recently, True Proof was updated on September 12, 2026 and TRACE Ballistics on September 14, 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.*