# Dive Plan vs NDL

The clearest difference is in-app purchases: NDL at none against Dive Plan's 4. NDL also leads on review sentiment (67% vs 37%) and iOS requirement (12.0 vs 16.0). Dive Plan's advantage is update cadence (monthly vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Dive Plan sells 4 in-app purchases, starting at $2.99 per month. NDL asks for nothing beyond the download.

Dive Plan ships an update monthly, NDL every 5 months. The most recent releases landed on September 28, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Dive Plan | NDL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.8 (8 ratings)](https://appshunter.io/ios/app/dive-plan/id496279549/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 36.7% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | Paid | **Free** |
| Size | 2 MB | 17 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AXIS Productions](https://appshunter.io/developer/472646203) | [NDL, UCH](https://appshunter.io/developer/1278307433) |

## What reviewers say

### Dive Plan

[App page](https://appshunter.io/ios/app/dive-plan/id496279549)

This app serves as a digital decompression table and logbook for divers. It helps calculate non-stop dive times and log dives, compatible with major diving organizations' tables. It supports both air and enriched air (nitrox) tanks.

**Highlights:** Digital decompression tables, Dive logbook, Compatibility with major diving organizations, Supports air and nitrox tanks, Practice for dive certification exams, General dive planning guide

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dive Plan Pro - Monthly | $2.99 | per month |
| Dive Plan Pro - Annual | $17.99 | per year |
| Nitrox EANX Mode | $2.99 | one-time |
| Dive Plan Pro Lifetime | $69.99 | one-time |


### 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


## Frequently asked questions

### Is Dive Plan free?

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

### Is NDL free?

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

### Do Dive Plan or NDL have ads?

Neither Dive Plan nor NDL shows ads.

### Which is updated more often, Dive Plan or NDL?

Dive Plan ships an update monthly, and NDL every 5 months. Most recently, Dive Plan was updated on September 28, 2026 and NDL on September 21, 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.*