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 complex recreational and technical dives with advanced decompression models and multi-gas support. Log your dives, manage gas blends, and restore underwater photo colors. Syncs across Apple devices.

Highlights
  • Bühlmann ZH-L16C and Thalmann decompression models
  • Open circuit and CCR dive planning
  • Multi-gas decompression support
  • Contingency plan computation
  • Gas blending and cylinder management
  • Underwater photo color correction
  • Bluetooth dive computer data import
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 2 months vs every 7 months). nDeco's advantage is in-app purchases (none vs 3). On price, ads, device support and iOS requirement 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 2 months, nDeco every 7 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 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 2 months — betterEvery 7 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.0 — better17.2
Further details — not scored
Size96 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 2 months, and nDeco every 7 months. Most recently, Diveplanner Tec & Rec was updated on November 3, 2026 and nDeco on October 30, 2026.

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