# Tech Dive vs Diving Calculator

The clearest difference is in-app purchases: Diving Calculator at none against Tech Dive's 2. Diving Calculator also leads on update cadence (weekly vs every 4 weeks) and iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Tech Dive sells 2 in-app purchases, starting at $0.99 per month. Diving Calculator asks for nothing beyond the download.

Tech Dive ships an update every 4 weeks, Diving Calculator weekly. The most recent releases landed on September 24, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Tech Dive | Diving Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tech-dive/id6483004689/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 33 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Skytip LLC](https://appshunter.io/developer/1569880600) | [Alberto Segovia](https://appshunter.io/developer/1724272655) |

## What reviewers say

### Tech Dive

[App page](https://appshunter.io/ios/app/tech-dive/id6483004689)

This app helps plan scuba dives with various calculators for gas, depth, and air consumption. It supports metric and imperial units and offers advanced features through an in-app purchase.

**Highlights:** Dive planning calculators, Gas and air consumption calculations, Metric and imperial unit support, Depth and EAD calculations, Enriched Air-Nitrox mix calculation, Unit conversion tools

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Monthly | $0.99 | per month |
| Plus Annual | $7.99 | per year |


### Diving Calculator

[App page](https://appshunter.io/ios/app/diving-calculator/id6680148006)

**In-app purchases:** none


## Frequently asked questions

### Is Tech Dive free?

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

### Is Diving Calculator free?

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

### Do Tech Dive or Diving Calculator have ads?

Neither Tech Dive nor Diving Calculator shows ads.

### Which is updated more often, Tech Dive or Diving Calculator?

Tech Dive ships an update every 4 weeks, and Diving Calculator weekly. Most recently, Tech Dive was updated on September 24, 2026 and Diving Calculator on September 18, 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.*