# Contrack App vs Bilda

The clearest difference is update cadence: Bilda at every 2 weeks against Contrack App's every 17 months. Bilda also leads on iOS requirement (16.4 vs 18.0). 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.

Contrack App ships an update every 17 months, Bilda every 2 weeks. The most recent releases landed on September 29, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Contrack App | Bilda |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 2 weeks** |
| Size | 8 MB | 73 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Contrack Management, LLC](https://appshunter.io/developer/1592064039) | [ZONEBUILT TECHNOLOGIES LTD](https://appshunter.io/developer/6804508792) |

## What reviewers say

### Contrack App

[App page](https://appshunter.io/ios/app/contrack-app/id1592064037)

**Features:** macOS Compatibility

**In-app purchases:** none


### Bilda

[App page](https://appshunter.io/ios/app/bilda/id6804508790)

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

**In-app purchases:** none


## Frequently asked questions

### Is Contrack App free?

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

### Is Bilda free?

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

### Do Contrack App or Bilda have ads?

Neither Contrack App nor Bilda shows ads.

### Which is updated more often, Contrack App or Bilda?

Contrack App ships an update every 17 months, and Bilda every 2 weeks. Most recently, Contrack App was updated on September 29, 2026 and Bilda on October 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*