DecoPlanner mobile vs Weights Check
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DecoPlanner mobile
Plan complex dive profiles using advanced decompression models. Track multiple gases, manage dive buddies, and visualize dive data with detailed graphs. Choose the version that suits your diving certification level.
- Open/Closed/Passive Semi-Closed Circuit planning
- ZH-L16 / VPM-B decompression models
- Gas tracking for multiple gases and dive buddies
- Gas mixing (partial pressure & continuous blending)
- Dive profile and tissue compartment graphs
- Diving level selection (Rec 1 to Unlimited CCR)
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Features: Open Circuit / Closed Circuit / Passive Semi-Closed Circuit planning ZH-L16 / VPM-B decompression models Convenient grouping of decompression stops Gas tracking of multiple gases and dive buddies Gas mixing through partial pressure and continuous blending Multiple graphs outlining dive profiles and tissue compartment pressures Select the version fitting your current level of diving, from Rec 1 to Unlimited CCR. More information at www.gue.com/store/software/decoplanner-4
Weights Check
This app helps divers meticulously plan their lead requirements and buoyancy for dives. It allows users to build and save custom dive rigs with their own gear, then simulate and record actual dive conditions to refine future dives. It serves as a digital logbook for dive weighting and buoyancy, moving beyond memory to data-driven planning.
- Build custom dive rigs with personal gear
- Simulate dive conditions and buoyancy
- Record actual dive weighting and performance
- Digital library of dive equipment
- Visualize balance at stop and depth
- Itemized rig breakdown
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A diver's lead is not one number. It moves with the water, the suit, the cylinders and the year — and most divers carry it in their head, or work it out again badly at every new destination. Weights Check keeps the record instead: build a rig once from your own gear, record what you actually wore and how it went, and the next dive starts from evidence rather than memory. It is a library, not a calculator and not a verdict on your rig. The arithmetic exists to make the library worth keeping. YOUR GEAR, ENTERED ONCE Cylinders, suits, wings, backplates, regulators, lights and stages go in once, across the seven categories My gear keeps. Lead is not owned but fitted, so it belongs to a rig rather than to the library. Build a configuration by picking from that library, and the tenth rig takes less than the second. First launch builds a sample rig from three questions, to look at before you build your own. PLAY WITH A RIG BEFORE YOU DIVE IT Copy a configuration and change one thing: the suit, the water, single to doubles or sidemount, a stage added, the lead moved from belt to plate. Everything follows — pick a mounting and the hardware it implies is fitted with it — and the copy is yours to change until you dive it and record a check against it. THE BALANCE, DRAWN Every configuration opens on the balance, in two columns. On the left, the 3 m stop with 50 bar left in every bottle: one signed figure on a bar running sinks to floats, with the estimate's band on it. On the right, the same rig at depth: what it would take to swim up if the wing failed, and whether the wing you fitted has the lift. A tag says what the figures stand on — your own check and its date, a check borrowed from another rig, or a plan. THE RIG, ITEM BY ITEM Under the balance, the same dive itemised: every item of the rig, what it is worth at the stop and at depth, the gas in the back cylinders and in every stage, the totals with and without the lead you fitted, and one line of what to do about it. ESTIMATES UNTIL YOU CHECK, MEASUREMENTS AFTERWARDS Before you have recorded a weight check, a suit's buoyancy comes from a published-material estimate, your body from your weight, height and sex, and the answer prints as a range it says is an estimate. Record one real weight check — 3 m, 50 bar in every bottle, and the lead you finished the check with — and the range narrows around what your own rig actually did. Recording checks is what turns the estimates into your numbers; nothing else does. WHERE IT STOPS It does not replace the weight check you do in the water — that check is the authority, and the app exists to remember it, not to stand in for it. It is not a dive computer, it runs no decompression calculation, and it is not a substitute for training. Where it cannot answer, it says so rather than printing a number with a caution underneath: a stage bottle that has not said what size it is, what it is filled to or what is in it is refused outright and explained rather than guessed at. Above a load you set for yourself it warns. Below that load it shows you the signed number and nothing more. There is no verdict on a diver anywhere in this app. EVERYTHING ELSE • Weight positioning recorded — where the lead sits, and what is ditchable • Every check kept, newest first, with what you entered on each one • Metric and imperial, switched app-wide, converted at the point of display • A dived-but-unrecorded rig waits at the top of the library • Deleted gear waits in Settings until you clear it out yourself — nothing empties itself • Equipment figures come from a maintained, sourced reference table • No account, no ads, no analytics. Works with no signal at all, and syncs through your own iCloud to your other devices and the Diver.Today apps Your training and your own weight check in the water decide what you dive. Weights Check keeps the record and does the arithmetic beforehand.
Screenshots
Verdict
The clearest difference is update cadence: Weights Check at every 3 days against DecoPlanner mobile's every 2 months. DecoPlanner mobile's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and monetization model 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.
DecoPlanner mobile ships an update every 2 months, Weights Check every 3 days. Both last shipped on October 24, 2026.
| Parameter | DecoPlanner mobile | Weights Check |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 74 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Global Underwater Explorers Inc. | RUSTAM ISMAILOV |
Customer experience
DecoPlanner mobile
Weights Check
In-app purchases
DecoPlanner mobile
No in-app purchases
Weights Check
No in-app purchases
Questions
Is DecoPlanner mobile free?
Is Weights Check free?
Do DecoPlanner mobile or Weights Check have ads?
Which is updated more often, DecoPlanner mobile or Weights Check?
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