# Subsurface vs Below

The clearest difference is rating: Below at 5.0 against Subsurface's 4.5. Below also leads on review sentiment (100% vs 63%) and update cadence (weekly vs every 2 months). Subsurface's advantage is in-app purchases (none vs 1) and ratings volume (48 vs 4). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Below sells 1 in-app purchase, starting at $19.99 per year. Subsurface asks for nothing beyond the download.

Below holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Subsurface has 48 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 63% of Subsurface's written reviews are positive against 100% of Below's.

Subsurface ships an update every 2 months, Below weekly. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Subsurface | Below |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (48 ratings)](https://appshunter.io/ios/app/subsurface-mobile/id1093217161/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/below-scuba-dive-log-and-sites/id6756759745/reviews)** |
| Number of ratings | **48** | 4 |
| Positive reviews | 63.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | **Free** | Freemium |
| Size | 52 MB | 164 MB |
| Requires iOS | **17** | 18.5 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dirk Hohndel](https://appshunter.io/developer/1093217160) | [Rustpoint, LLC](https://appshunter.io/developer/1847082150) |

## What reviewers say

### Subsurface

[App page](https://appshunter.io/ios/app/subsurface-mobile/id1093217161)

This application allows divers to manage their dive logs on their mobile devices. It supports editing dive data and downloading new information from compatible dive computers. Optional cloud synchronization is available for seamless data transfer with desktop versions.

**Highlights:** Mobile dive log management, Edit dive data, Download from Bluetooth LE dive computers, Optional cloud synchronization, Open-source and free

**In-app purchases:** none


### Below

[App page](https://appshunter.io/ios/app/below-scuba-dive-log-and-sites/id6756759745)

Log your scuba dives with detailed metrics, sync from over 100 dive computers, and explore a vast catalog of dive sites and marine life. This app keeps your dive history on your device and offers an offline-first experience.

**Highlights:** Detailed dive logging, Bluetooth dive computer sync, 10,000+ curated dive sites, Marine life catalog, Offline-first operation, Dive site collections, Gear management

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Below Unlimited | $19.99 | per year |


## Frequently asked questions

### Is Subsurface free?

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

### Is Below free?

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

### Which has better reviews, Subsurface or Below?

Below is rated higher. Subsurface averages 4.5 out of 5 from 48 ratings, while Below averages 5.0 from 4 ratings.

### Do Subsurface or Below have ads?

Neither Subsurface nor Below shows ads.

### Which is updated more often, Subsurface or Below?

Subsurface ships an update every 2 months, and Below weekly. Most recently, Subsurface was updated on November 2, 2026 and Below on November 5, 2026.

---

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