# Tech Dive vs Active Log

The clearest difference is update cadence: Active Log at every 3 days against Tech Dive's every 4 weeks. Active Log also leads on iOS requirement (15.6 vs 17.0). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Tech Dive sells 2 in-app purchases, starting at $0.99 per month and Active Log sells 4 in-app purchases, starting at $4.99 per year. 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 Active Log. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Tech Dive ships an update every 4 weeks, Active Log every 3 days. The most recent releases landed on September 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Tech Dive | Active Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/tech-dive/id6483004689/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/active-log/id6756741575/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 16 MB | 75 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Skytip LLC](https://appshunter.io/developer/1569880600) | [Duong Do](https://appshunter.io/developer/1455884076) |

## 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 |


### Active Log

[App page](https://appshunter.io/ios/app/active-log/id6756741575)

This app serves as a comprehensive dive logbook for scuba and freediving enthusiasts. It allows users to track progress, plan dives, import data from dive computers and existing files, and store important documents. It also includes safety calculators and works offline.

**Highlights:** Dive computer data import, Log file import (SSRF, .FIT), Dive planning and profile tracking, Document and certification storage, Offline functionality, Safety calculators (MOD, EAD, ppO2), Cloud sync across devices

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Freediving module (yearly) | $4.99 | per year |
| TechDive module (yearly) | $4.99 | per year |
| Swimming module (yearly) | $4.99 | per year |
| Diving module (yearly) | $9.99 | per year |


## Frequently asked questions

### Is Tech Dive free?

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

### Is Active Log free?

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

### Which has better reviews, Tech Dive or Active Log?

Tech Dive and Active Log are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Tech Dive or Active Log have ads?

Neither Tech Dive nor Active Log shows ads.

### Which is updated more often, Tech Dive or Active Log?

Tech Dive ships an update every 4 weeks, and Active Log every 3 days. Most recently, Tech Dive was updated on September 24, 2026 and Active Log on October 10, 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.*