# Chronograph Log vs Speed Tracker air

The clearest difference is price: Speed Tracker air at Free against Chronograph Log's $3.99. Speed Tracker air also leads on update cadence (every 11 days vs every 10 months) and iOS requirement (9 vs 12.0). On ads, in-app purchases and device support there is nothing between them.

Speed Tracker air is free to download; Chronograph Log costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Chronograph Log ships an update every 10 months, Speed Tracker air every 11 days. The most recent releases landed on September 20, 2026 and May 19, 2026 respectively.

## The numbers

| Metric | Chronograph Log | Speed Tracker air |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/chronograph-log/id848380910/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 11 days** |
| Monetization | Paid | — |
| Size | 22 MB | 77 MB |
| Requires iOS | 12.0 | **9** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [On-Core Software LLC](https://appshunter.io/developer/283621364) | [Advantage Solutions, s. r. o.](https://appshunter.io/developer/1628507688) |

## What reviewers say

### Chronograph Log

[App page](https://appshunter.io/ios/app/chronograph-log/id848380910)

Record bullet velocities from your chronograph directly onto your iOS device. Easily share load data and track power factors for competitive shooting. This app helps you manage and analyze your shooting performance without manual note-taking.

**Highlights:** Record bullet velocities, Define bullets, guns, and powder, Automatic velocity calculations (Avg, Min, Max), Color-coded power factors, Export data via email and social media, Dropbox backup and restore, Bluetooth integration with ProChrono Digital

**Features:** Vision Pro support

**In-app purchases:** none


### Speed Tracker air

[App page](https://appshunter.io/ios/app/speed-tracker-air/id6453889936)

**In-app purchases:** none


## Frequently asked questions

### Is Chronograph Log free?

Chronograph Log costs $3.99, with no in-app purchases.

### Is Speed Tracker air free?

Speed Tracker air is free to download, with no in-app purchases.

### Do Chronograph Log or Speed Tracker air have ads?

Neither Chronograph Log nor Speed Tracker air shows ads.

### Which is updated more often, Chronograph Log or Speed Tracker air?

Chronograph Log ships an update every 10 months, and Speed Tracker air every 11 days. Most recently, Chronograph Log was updated on September 20, 2026 and Speed Tracker air on May 19, 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.*