nDeco vs DiveCast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
nDeco
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.
- Multi-segment dive planning
- U.S. Navy & Bühlmann decompression models
- Depth limit guidance
- Instant dive information
- Surface interval recommendations
- Metric/imperial unit flexibility
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WHAT MAKES nDeco UNIQUE? * Simple and easy Dive Planning: Calculate multi-segment dive profiles * Safety First Approach: Built on U.S. Navy Diving Manual and Bühlmann ZH-L16 decompression models * Easy-to-Use Interface: Plan complex dives with just a few taps * Dynamic dive information * Easy to simulate multi segments dive scenarios KEY FEATURES: * Depth Limit Guidance: Safely plan dives from shallow reefs to deeper explorations * Multi-Segment Dive Planning: Create detailed dive profiles with multiple depth segments * Instant Dive Information: See total dive time, descent/ascent times, and surface intervals * Unit Flexibility: Switch between metric (meters) and imperial (feet) with one tap * Surface Interval Recommendations: Ensures safe intervals between multiple daily dives DESIGNED FOR DIVERS BY DIVERS for the recreational diver- nDeco provides the tools you need to plan safe, enjoyable underwater adventures. SAFETY DISCLAIMER: * Calibrated for sea-level, salt water diving * Designed for compressed air (21% oxygen) * Always dive within your training and certification limits DIVE SAFE. DIVE SMART. DIVE nDeco!
DiveCast
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DiveCast is a dynamic dive planning tool built for technical divers who need accurate, real-time decompression and gas planning — on the boat, at the dive site, or at home. KEY FEATURES • Real-time dive profile planning with live decompression calculations (Bühlmann ZHL-16 with gradient factors) • Full gas planning: bottom, deco, and diluent gas mixes with MOD, density, and no-decompression limits calculated automatically • CNS and OTU oxygen toxicity tracking alongside your deco stop schedule • Gas Library — save and reuse your standard gas configurations, synced across devices when signed in • Stress scenario modeling — instantly rescale SAC and ascent rates for elevated-exertion or emergency conditions • Supports open-circuit, closed-circuit (rebreather), and bailout planning • Consecutive dive planning that carries over tissue loading from your previous dive • Configurable ascent/descent rates, SMB deployment drift, and surface planning parameters • Fully usable offline for planning dives up to 30m, no account required. Full planning access — including deeper technical dives — requires signing in as a verified technical diver, which also unlocks cloud sync across devices DiveCast is built for certified technical divers with training in decompression theory and gas management. It is a planning aid, not a substitute for training, certification, or dive computer verification — always cross-check dive plans against your training and equipment before diving.
Screenshots
Verdict
The clearest difference is update cadence: DiveCast at every 2 days against nDeco's every 7 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
nDeco ships an update every 7 months, DiveCast every 2 days. The most recent releases landed on September 27, 2026 and October 31, 2026 respectively.
| Parameter | nDeco | DiveCast |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 7 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.2 — better | 18.0 |
| Further details — not scored | ||
| Size | 73 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Eyal Vardi | Nicolas Andine |
In-app purchases
nDeco
No in-app purchases
DiveCast
No in-app purchases









