Comparison

Diveplanner Tec & Rec vs nDeco

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Diveplanner Tec & Rec

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
Read full description

Diveplanner Tec & Rec plans recreational and technical dives, on open circuit or closed circuit rebreather (CCR), in a few taps, and keeps your logbook. PLAN • Bühlmann ZH-L16C decompression model with your gradient factors, or the Thalmann algorithm of the U.S. Navy: VVal-79 for air and nitrox, XVal-He-9 for heliox CCR dives; compare a plan with both • Open circuit and CCR, down to 300 m / 985 ft, in salt, fresh or EN 13319 water, at sea level or at altitude • Multi-level dives, multi-gas decompression with automatic or chosen switch depths • Contingency plans computed for you: deeper, longer, lost deco gas, GF 100 and the CCR bailout • Warnings for ppO2, END, gas density, isobaric counter diffusion, CNS and OTU • The decompression chart of each plan: the profile, the tissues' ceilings at GF 100 and at your gradient factors, the leading tissue • A dive day of as many repetitive dives as you need, with their surface intervals • Saved plans in folders, shared as files GAS • Describe your cylinders: the plan gives the pressure at the end of the dive, the turn pressure, the rock bottom and the maximum bottom time your gas allows • Gas needed by volume and weight, per gas TABLES • Dive tables by depth and bottom time for your own gases, gradient factors and conditions, with the previous dives of the day • Share or print the table as a PDF TOOLS • Gas blender: partial pressure blending of nitrox, trimix and heliox from what is left in the cylinder, ideal or real gas; the best mix for a depth from your ppO2, END and gas density limits, and the cylinder label • Tides: the tide of a day anywhere at sea, from the nearest NOAA tide station or the EOT20 global tide model, its high and low waters, and the tidal currents and slack waters of a nearby current station, read to the minute on the chart • Photo colors: restore the true colors of your underwater photos and videos, their blue or green cast, haze and missing red corrected, with the depth of your logged dive; compare before and after, then save or share LOGBOOK • Log your dives by hand, from a plan, or download them over Bluetooth from a Shearwater dive computer (Petrel 2, Perdix, Perdix AI, Nerd 2, Teric, Peregrine), with the profile, stops, gases and sensor values • Photos, dive sites on a map, statistics, tags, search and filters • Synchronised between your iPhone, iPad and Mac with iCloud • Export to UDDF, Subsurface, CSV, a PDF logbook and .divelog archives; import UDDF and Subsurface SHARE • Ready-to-cut dive schedules as a PDF, for your buddy or your slate: every plan, the gas and cylinders, CNS, OTU and warnings EVERYWHERE • iPhone, iPad and Mac • Metric or imperial units • In 12 languages, each with its user guide LICENCES • Rec, free: one gas, air or nitrox up to 40 %, down to 66 m / 210 ft • Tec Basic: up to 3 gases, nitrox up to 100 %, normoxic trimix and triox • Tec Advanced: unlimited gases and depth, hypoxic trimix • Try every feature free for 2 weeks Diveplanner is a planning aid. It does not replace training, experience, a dive computer or your own judgement: always dive within the limits of your certification.

About

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.

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
Read full description

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!

Screenshots

Diveplanner Tec & Rec4 screens
nDeco4 screens

Verdict

The call

The clearest difference is review sentiment: Diveplanner Tec & Rec at 43% against nDeco's 0%. Diveplanner Tec & Rec also leads on rating (3.1 vs 2.0) and update cadence (every 3 months vs every 7 months). nDeco's advantage is in-app purchases (none vs 3). On price, ads, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Diveplanner Tec & Rec holds the better App Store score, 3.1 against 2.0. That said, the two scores are not equally well evidenced: Diveplanner Tec & Rec has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 43% of Diveplanner Tec & Rec's written reviews are positive against 0% of nDeco's.

UpkeepUpdate frequency

Diveplanner Tec & Rec ships an update every 3 months, nDeco every 7 months. The most recent releases landed on October 24, 2026 and September 27, 2026 respectively.

Scorecard5 real differences · 5 level
Diveplanner Tec & Rec versus nDeco: the parameters behind the verdict, then further details
ParameterDiveplanner Tec & RecnDeco
PriceFreeFree
Rating3.1 (7 ratings) — better2.0 (1 ratings)
Positive reviews42.9% of reviews — better0.0% of reviews
Number of ratings7 — better1
Update frequencyEvery 3 months — betterEvery 7 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.0 — better17.2
Further details — not scored
Size87 MB73 MB
Age rating4+4+
DeveloperSensetrails LLCEyal Vardi

Customer experience

Diveplanner Tec & Rec

All ratings7 ratings
Positive42.9%
Neutral28.6%
Negative28.6%
Written reviews7 reviews
Positive42.9%
Neutral0.0%
Negative57.1%

nDeco

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

3 purchases

Diveplanner Tec & Rec

One-time3
  • Two weeks free trialFree
  • Tec Basic$7.99
  • Tec Advanced$19.99
None

nDeco

No in-app purchases

Questions

Is Diveplanner Tec & Rec free?
Diveplanner Tec & Rec is free to download, with in-app purchases available.
Is nDeco free?
nDeco is free to download, with no in-app purchases.
Which has better reviews, Diveplanner Tec & Rec or nDeco?
Diveplanner Tec & Rec is rated higher. Diveplanner Tec & Rec averages 3.1 out of 5 from 7 ratings, while nDeco averages 2.0 from 1 ratings.
Do Diveplanner Tec & Rec or nDeco have ads?
Neither Diveplanner Tec & Rec nor nDeco shows ads.
Which is updated more often, Diveplanner Tec & Rec or nDeco?
Diveplanner Tec & Rec ships an update every 3 months, and nDeco every 7 months. Most recently, Diveplanner Tec & Rec was updated on October 24, 2026 and nDeco on September 27, 2026.

Other comparisons