# BAP String Building Guide vs TRACE Ballistics

The clearest difference is update cadence: TRACE Ballistics at every 6 days against BAP String Building Guide's every 2 months. TRACE Ballistics also leads on iOS requirement (15.1 vs 18.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BAP String Building Guide ships an update every 2 months, TRACE Ballistics every 6 days. The most recent releases landed on September 12, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | BAP String Building Guide | TRACE Ballistics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 6 MB | 37 MB |
| Requires iOS | 18.5 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lucas Palmer](https://appshunter.io/developer/1747342861) | [Wouter Theron](https://appshunter.io/developer/1896715274) |

## What reviewers say

### BAP String Building Guide

[App page](https://appshunter.io/ios/app/bap-string-building-guide/id6748029900)

**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 BAP String Building Guide free?

BAP String Building Guide is free to download, with no in-app purchases.

### Is TRACE Ballistics free?

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

### Do BAP String Building Guide or TRACE Ballistics have ads?

Neither BAP String Building Guide nor TRACE Ballistics shows ads.

### Which is updated more often, BAP String Building Guide or TRACE Ballistics?

BAP String Building Guide ships an update every 2 months, and TRACE Ballistics every 6 days. Most recently, BAP String Building Guide 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.*