# Alert Diver vs Diveplanner Tec & Rec

The clearest difference is rating: Alert Diver at 4.0 against Diveplanner Tec & Rec's 3.1. Alert Diver also leads on in-app purchases (none vs 3) and iOS requirement (11.0 vs 17.0). Diveplanner Tec & Rec's advantage is review sentiment (33% vs 25%). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Diveplanner Tec & Rec sells 3 one-off in-app purchases. Alert Diver asks for nothing beyond the download.

Alert Diver holds the better App Store score, 4.0 against 3.1. Both are backed by a comparable volume of ratings — 4 and 7 respectively. Written reviews complicate that: 25% of Alert Diver's written reviews are positive against 33% of Diveplanner Tec & Rec's, so the app with the better star average is not the one people write more warmly about.

Alert Diver ships an update every 6 months, Diveplanner Tec & Rec every 3 months. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Alert Diver | Diveplanner Tec & Rec |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/alert-diver/id480608662/reviews)** | [3.1 (7 ratings)](https://appshunter.io/ios/app/diveplanner-tec-and-rec/id1506985833/reviews) |
| Number of ratings | 4 | **7** |
| Positive reviews | 25.0% of reviews | **33.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 92 MB | 83 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Divers Alert Network](https://appshunter.io/developer/1482122935) | [Sensetrails LLC](https://appshunter.io/developer/806088250) |

## What reviewers say

### Alert Diver

[App page](https://appshunter.io/ios/app/alert-diver/id480608662)

Explore dive industry insights, research, and safety information. Discover underwater photography, travel destinations, and marine environmental topics. This app provides valuable content for divers and enthusiasts.

**Highlights:** Dive industry research, Medical information, Dive safety guidelines, Underwater photography, Dive travel guides, Marine environmental topics

**Features:** macOS Compatibility

**In-app purchases:** none


### Diveplanner Tec & Rec

[App page](https://appshunter.io/ios/app/diveplanner-tec-and-rec/id1506985833)

Plan technical and recreational scuba dives with detailed gas management, decompression schedules, and contingency planning. This tool helps divers quickly create and share dive plans for various depths and conditions.

**Highlights:** Technical and recreational dive planning, Multi-gas and CCR dive schedules, Bühlmann decompression model (ZH16L-C), Automatic contingency plans, Gas requirement and weight calculation, Dive table generation, Metric and Imperial units

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Two weeks free trial | Free | one-time |
| Tec Basic | $7.99 | one-time |
| Tec Advanced | $19.99 | one-time |


## Frequently asked questions

### Is Alert Diver free?

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

### Is Diveplanner Tec & Rec free?

Diveplanner Tec & Rec is free to download, with in-app purchases available.

### Which has better reviews, Alert Diver or Diveplanner Tec & Rec?

Alert Diver is rated higher. Alert Diver averages 4.0 out of 5 from 4 ratings, while Diveplanner Tec & Rec averages 3.1 from 7 ratings.

### Do Alert Diver or Diveplanner Tec & Rec have ads?

Neither Alert Diver nor Diveplanner Tec & Rec shows ads.

### Which is updated more often, Alert Diver or Diveplanner Tec & Rec?

Alert Diver ships an update every 6 months, and Diveplanner Tec & Rec every 3 months. Most recently, Alert Diver was updated on October 14, 2026 and Diveplanner Tec & Rec on October 16, 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.*