# nDeco vs Dive Toolbox

The clearest difference is in-app purchases: nDeco at none against Dive Toolbox's 2. Dive Toolbox's advantage is update cadence (every 6 days vs every 7 months) and iOS requirement (15.0 vs 17.2). On price, ads and device support there is nothing between them.

Both are free to download. Dive Toolbox sells 2 in-app purchases, starting at $5.99 per month. nDeco asks for nothing beyond the download.

nDeco ships an update every 7 months, Dive Toolbox every 6 days. The most recent releases landed on June 3, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | nDeco | Dive Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/ndeco/id6741527911/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 days** |
| Monetization | Free | — |
| Size | 73 MB | 33 MB |
| Requires iOS | 17.2 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Eyal Vardi](https://appshunter.io/developer/988684101) | [Onosia](https://appshunter.io/developer/1880704645) |

## What reviewers say

### nDeco

[App page](https://appshunter.io/ios/app/ndeco/id6741527911)

Plan multi-segment dives with ease using U.S. Navy and Bühlmann decompression models. Get instant dive information, depth limit guidance, and surface interval recommendations for safe underwater adventures.

**Highlights:** Multi-segment dive planning, U.S. Navy & Bühlmann decompression models, Depth limit guidance, Instant dive information, Surface interval recommendations, Metric/imperial unit flexibility

**Features:** macOS Compatibility

**In-app purchases:** none


### Dive Toolbox

[App page](https://appshunter.io/ios/app/dive-toolbox/id6759796903)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $5.99 | per month |
| Premium Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is nDeco free?

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

### Is Dive Toolbox free?

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

### Do nDeco or Dive Toolbox have ads?

Neither nDeco nor Dive Toolbox shows ads.

### Which is updated more often, nDeco or Dive Toolbox?

nDeco ships an update every 7 months, and Dive Toolbox every 6 days. Most recently, nDeco was updated on June 3, 2026 and Dive Toolbox on September 24, 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.*