Comparison

Dive Kit vs DiveHub

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

Head to head
About

Dive Kit

This app provides comprehensive dive planning tools for various gas mixes, including trimix and CCR dives. It offers a suite of free utilities for gas analysis, usage, and buoyancy calculations, alongside educational content and a certification wallet. The premium version unlocks advanced planning features for complex dives.

Highlights
  • Open-circuit, trimix, and CCR dive planning
  • Automatic gas switching and unlimited segments
  • Offline functionality
  • Free dive utilities (gas analysis, usage, buoyancy)
  • Dive signals and cylinder specifications
  • Certification wallet
  • Multi-language support
Features
Read full description

The deco planner built for technical divers, plus eleven free tools for everyone on the boat. Dive Kit is a scuba deco planner for open-circuit, trimix and CCR dives on Bühlmann ZH-L16C with your gradient factors. It shows what every what-if costs: deeper, longer, a lost gas, a bailout from any point in the dive. Big type for direct sun, big targets for wet hands, routine tasks in seconds. Deco Planner (Pro) - Multi-level profiles with the deco woven around your levels: stops between levels when the plan needs them, gas switches placed where the PPO₂ allows - Gradient factors, last stop, ascent rates, air breaks, stop rounding (1 min, 30 s or 1 s) and PPO₂ bands per gas, all set per plan - Contingency tabs: deeper, longer, lost gas, or build your own. Each shows the extra run time, TTS and CNS against the base plan - Modifiers: working and deco SRMV and a delay at depth, on the base plan or on one contingency - CCR: setpoint schedules by depth, diluent switches, dilout, and open-circuit bailout from the end of the profile, after any level, at a run time or on ascent - Gas per cylinder: remaining pressure at each stop, a reserve per cylinder, ascent pressure, and what happens when a cylinder runs dry - Live warnings with the number and the limit: PPO₂, END, gas density, CNS, OTU, hypoxia, reserve - Repetitive dives, with tissue loading carried over the surface interval - Plan variants, overlaid on one graph - Share by QR code or link, no purchase needed to read it. Export the table or a slate image Eleven Free Tools No ads, nothing behind a sign-up. - Best Mix: nitrox and trimix by MOD, helium picked by END, with narcotic and density limits - Gas Specs: EAD, PPO₂, END and gas density with color-coded warnings - Gas Usage: multi-level consumption, turn pressure, thirds to sixths - SAC/SRMV: your real breathing rate from a dive; for twinsets and sidemount, enter the combined cylinder volume - Buoyancy: weighting from suit, body, gear and water, with lift and overweighting advisories - Blender: partial-pressure and continuous blending with real-gas corrections and expected analyzer readings - Mix Result: what a top-up or a decant actually gives you - Checklists: your own pre-dive routines and rebreather presets, with timers that survive closing the app - Cylinders, Converter, Signals. Cylinders named the way you buy them: AL80 at 3000 psi, or litres Reference & Learning - 90+ illustrated, searchable dive signals and 35+ cylinder specifications - Tutorials on gas physics, decompression theory and trimix, and help on key results Certification Wallet 25+ agencies, 190+ certifications, and a diver profile that holds your dive insurance details. Built for the Boat - Fully offline, on phones and tablets - Eight languages: English, German, Turkish, Swedish, Russian, Polish, Simplified Chinese, Korean - Light, dark and automatic themes No account. Your dive data stays on your device. Usage analytics and crash reports are optional and can be switched off in Settings. Pricing The Deco Planner is the only paid tool: a one-time lifetime purchase or a subscription. Everything else is free, for everyone. Warning and Disclaimer Dive Kit is a reference and planning aid for trained divers, and that covers all its tools. It is not a dive computer and not a substitute for training. The deco planner is for divers trained in decompression diving, and gas blending is for trained blenders. Results can be wrong, so check every result against a second source. Dive Kit is provided as is, and you use it at your own risk. Warning and disclaimer: https://divekit.app/safety/ Terms of Use: https://divekit.app/terms/ Privacy Policy: https://divekit.app/privacy-policy/ Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

DiveHub

Features
Read full description

EDUCATIONAL PURPOSE ONLY - NOT FOR REAL DIVE PLANNING DiveHub is a fan project created to help divers learn and understand decompression theory. This app implements the Bühlmann ZH-L16C algorithm with gradient factors, but lacks many features required for safe, real-world dive planning. Key Features: • Bühlmann ZH-L16C Decompression Algorithm • Gradient Factor support (customizable GF Low/High) • Open Circuit (OC) multi-gas planning • Closed Circuit Rebreather (CCR) support with bailout planning • Multiple decompression gases • Real-time dive profile visualization • Equivalent Narcotic Depth (END) calculations • Gas density monitoring with safety thresholds • Time To Surface (TTS) calculations • Customizable ascent/descent rates • Altitude diving support with custom surface pressure • Fresh water and salt water density options • Save and manage multiple dive plans • Some level of Gas Planning • BLE Nitrox Analyzer Not included features: • Complete Gas planning feature • ICBD warning, HPNS warning • etc. Technical Diving Concepts: Learn about decompression stops, tissue compartment loading, gas switching protocols, ppO2 limits, Maximum Operating Depth (MOD), CNS oxygen toxicity tracking, and CCR bailout planning. Important Safety Notice: This app is for educational purposes only. It does not account for all physiological factors, environmental conditions, or emergency scenarios. You must be properly trained in decompression theory and dive planning. Only dive within your certified training level. All dives carry risk of Decompression Sickness (DCS), which can cause serious injury or death. The developers are not responsible for any injuries or incidents resulting from using this application. You assume all risks associated with diving. Requirements: • Full understanding of diving terms and decompression theory • Proper dive training and certification • Use alongside professional dive computers and planning tools

Screenshots

Dive Kit4 screens
DiveHub4 screens

Verdict

The call

The clearest difference is in-app purchases: DiveHub at none against Dive Kit's 3. Dive Kit's advantage is update cadence (every 3 days vs every 8 days) and iOS requirement (16.4 vs 18.6). On price, ads 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. Dive Kit sells 3 in-app purchases, starting at $4.99 per month. DiveHub asks for nothing beyond the download.

UpkeepUpdate frequency

Dive Kit ships an update every 3 days, DiveHub every 8 days. Both last shipped on October 19, 2026.

Scorecard3 real differences · 7 level
Dive Kit versus DiveHub: the parameters behind the verdict, then further details
ParameterDive KitDiveHub
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 days — betterEvery 8 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better18.6
Further details — not scored
Size129 MB10 MB
Age rating4+4+
DeveloperRONNY MAJANIXIN LI

In-app purchases

3 purchases

Dive Kit

Subscriptions1
  • Skuba Tools Pro Monthly1 Month trial$4.991 Month
One-time2
  • Tip$0.99
  • Decompression Planner$24.99
None

DiveHub

No in-app purchases

Questions

Is Dive Kit free?
Dive Kit is free to download, with in-app purchases available.
Is DiveHub free?
DiveHub is free to download, with no in-app purchases.
Do Dive Kit or DiveHub have ads?
Neither Dive Kit nor DiveHub shows ads.
Which is updated more often, Dive Kit or DiveHub?
Dive Kit ships an update every 3 days, and DiveHub every 8 days. Most recently, Dive Kit was updated on October 19, 2026 and DiveHub on October 19, 2026.

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