# NDL vs Diveplanner Tec & Rec

The clearest difference is in-app purchases: NDL at none against Diveplanner Tec & Rec's 3. NDL also leads on review sentiment (67% vs 33%) and iOS requirement (12.0 vs 17.0). On price, update cadence, ads and monetization model there is nothing between them.

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

NDL ships an update every 5 months, Diveplanner Tec & Rec every 3 months. The most recent releases landed on September 21, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | NDL | Diveplanner Tec & Rec |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.1 (7 ratings)](https://appshunter.io/ios/app/diveplanner-tec-and-rec/id1506985833/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | **66.7% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 17 MB | 83 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [NDL, UCH](https://appshunter.io/developer/1278307433) | [Sensetrails LLC](https://appshunter.io/developer/806088250) |

## What reviewers say

### NDL

[App page](https://appshunter.io/ios/app/ndl/id1278307434)

Confirm your diver or freediver status online and save electronic certificates offline. This app offers a free log-book and No-decompression limit planner, along with the latest news from the National Dive League. Professionals can also manage certificates and access the NDL Professional Zone.

**Highlights:** Confirm diver status online, Save electronic certificates offline, Free log-book, No-decompression limit planner, Latest news from National Dive League, Manage certificates for professionals

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

**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 NDL free?

NDL 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.

### Do NDL or Diveplanner Tec & Rec have ads?

Neither NDL nor Diveplanner Tec & Rec shows ads.

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

NDL ships an update every 5 months, and Diveplanner Tec & Rec every 3 months. Most recently, NDL was updated on September 21, 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.*