# DiveCore vs Backyard Ultra Loop Run

The clearest difference is in-app purchases: Backyard Ultra Loop Run at none against DiveCore's 3. Backyard Ultra Loop Run also leads on iOS requirement (16.4 vs 18.0). DiveCore's advantage is ads (none vs shown) and update cadence (every 4 days vs every 11 days). On price and device support there is nothing between them.

Both are free to download. DiveCore sells 3 in-app purchases, starting at $4.99 per month. Backyard Ultra Loop Run asks for nothing beyond the download.

DiveCore ships an update every 4 days, Backyard Ultra Loop Run every 11 days. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | DiveCore | Backyard Ultra Loop Run |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 11 days |
| Monetization | Free with in-app purchases | — |
| Size | 26 MB | 86 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Juseong Kim](https://appshunter.io/developer/1875156558) | [Annika Koenemann](https://appshunter.io/developer/1614900820) |

## What reviewers say

### DiveCore

[App page](https://appshunter.io/ios/app/divecore-dive-computer/id6758817797)

This app transforms your Apple Watch Ultra into a comprehensive dive computer, offering real-time decompression data, freediving modes, and estimated dive routes. It features AI-powered dive analysis and a detailed logbook, syncing seamlessly with its iPhone companion app for post-dive review and planning.

**Highlights:** Bühlmann ZHL-16C decompression model, Freediving modes (CWT, STA, DYN), Estimated dive route with GPS fixes, Live Activity no-fly timer, On-device AI dive analysis, iCloud synchronized dive log, Underwater photo color correction

**Features:** Apple Watch app, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DiveCore Pro (Monthly) | $4.99 | per month |
| DiveCore Pro (Yearly) | $29.99 | per year |
| DiveCore Pro 1-Day Pass | $2.99 | one-time |


### Backyard Ultra Loop Run

[App page](https://appshunter.io/ios/app/backyard-ultra-loop-run/id6804479452)

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

**In-app purchases:** none


## Frequently asked questions

### Is DiveCore free?

DiveCore is free to download, with in-app purchases available.

### Is Backyard Ultra Loop Run free?

Backyard Ultra Loop Run is free to download, with no in-app purchases.

### Do DiveCore or Backyard Ultra Loop Run have ads?

Backyard Ultra Loop Run shows ads; DiveCore does not.

### Which is updated more often, DiveCore or Backyard Ultra Loop Run?

DiveCore ships an update every 4 days, and Backyard Ultra Loop Run every 11 days. Most recently, DiveCore was updated on November 7, 2026 and Backyard Ultra Loop Run on November 6, 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.*