# Speed Tracker air vs FieldSolve

The clearest difference is update cadence: FieldSolve at every 4 days against Speed Tracker air's every 11 days. Speed Tracker air's advantage is iOS requirement (9 vs 15.0). 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.

Speed Tracker air ships an update every 11 days, FieldSolve every 4 days. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Speed Tracker air | FieldSolve |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 4 days** |
| Size | 77 MB | 28 MB |
| Requires iOS | **9** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Advantage Solutions, s. r. o.](https://appshunter.io/developer/1628507688) | [EX Corporation Oy](https://appshunter.io/developer/1391053704) |

## What reviewers say

### Speed Tracker air

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

**In-app purchases:** none


### 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 Speed Tracker air free?

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

### Is FieldSolve free?

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

### Do Speed Tracker air or FieldSolve have ads?

Neither Speed Tracker air nor FieldSolve shows ads.

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

Speed Tracker air ships an update every 11 days, and FieldSolve every 4 days. Most recently, Speed Tracker air was updated on October 9, 2026 and FieldSolve on October 10, 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.*