Weights Check – Dive Weighting
Scuba buoyancy calculator
About
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.
What's New in Weights Check
1.8
September 29, 2026
A new icon. Steel cylinders can be entered from the numbers stamped on the shoulder: capacity, working pressure and the stamped mass. The app works out the cylinder's buoyancy from them. Every cylinder's mass is now entered without its valve: the stamped figure on steel, the maker's empty weight on aluminium. Changing the mass of an item picked from the list now changes its buoyancy only by what the added or missing material would. Before, the whole difference went into buoyancy, so a lighter item read more buoyant than it is and a heavier one less buoyant. Gear already edited that way is fixed in My gear when the app opens. Cylinders whose standard is not known now come first in the cylinder list.
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FAQ
Does Weights Check have ads?
Weights Check is ad-free, allowing for an uninterrupted planning experience.
How often is Weights Check updated?
The latest version, 1.6, was released on 2026-09-17, indicating recent development activity.
What devices support Weights Check?
Weights Check is currently supported on iPhone devices.
What is the age rating for Weights Check?
Weights Check has an age rating of 4+, making it suitable for a wide range of users.
How does Weights Check improve dive planning?
It moves beyond memory by allowing users to build rigs, simulate conditions, and record actual dive data, creating a personalized and evidence-based planning system.
Can I use Weights Check offline?
The description does not specify offline functionality, but its focus on data logging suggests it may require an internet connection for certain features.
What user sentiment is reflected in Weights Check's rating?
Weights Check has a perfect 5.0-star rating from 1 review, indicating a highly positive initial user experience.
Does Weights Check replace a dive computer?
No, Weights Check explicitly states it does not replace a dive computer, nor does it perform decompression calculations or substitute for training.
