# Tech Dive vs Thalos

The clearest difference is monetization model: Tech Dive at free with in-app purchases against Thalos's subscription. Thalos's advantage is update cadence (daily vs every 4 weeks) and iOS requirement (15.1 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Tech Dive sells 2 in-app purchases, starting at $0.99 per month and Thalos sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Tech Dive against 5.0 for Thalos. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Tech Dive ships an update every 4 weeks, Thalos daily. The most recent releases landed on October 11, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Tech Dive | Thalos |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/tech-dive/id6483004689/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/thalos/id6761337227/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Daily** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 16 MB | 41 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Skytip LLC](https://appshunter.io/developer/1569880600) | [JOHN WALLIS YOUNGBLOOD](https://appshunter.io/developer/1888980268) |

## 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 |


### Thalos

[App page](https://appshunter.io/ios/app/thalos/id6761337227)

This comprehensive dive app offers a robust dive logbook, detailed dive site information with emergency plans, and multiple dive calculators. It includes features for instructors to manage students and courses, and a social feed for divers to connect and share experiences. The app works fully offline, ensuring critical data is always accessible.

**Highlights:** Offline dive logbook, Dive site database with emergency plans, 9 essential dive calculators, Instructor module for course management, Social feed and community features, Emergency mode for critical access

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Thalos | $2.99 | per month |
| Thalos | $19.99 | per year |


## Frequently asked questions

### Is Tech Dive free?

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

### Is Thalos free?

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

### Which has better reviews, Tech Dive or Thalos?

Tech Dive and Thalos are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do Tech Dive or Thalos have ads?

Neither Tech Dive nor Thalos shows ads.

### Which is updated more often, Tech Dive or Thalos?

Tech Dive ships an update every 4 weeks, and Thalos daily. Most recently, Tech Dive was updated on October 11, 2026 and Thalos on October 13, 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.*