Comparison

MultiDeco vs Barefoot Blender

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

Head to head
About

MultiDeco

This app calculates dive decompression for technical scuba divers using VPM and ZHL-16 models. It supports various gas mixes, planning methods for open circuit and rebreathers, and includes tools for gas blending and depth calculations.

Highlights
  • VPM and ZHL-16 decompression models
  • Support for nitrox and trimix
  • OC and CCR planning
  • Bailout planning
  • Gas blending utility
  • Depth calculation tools
Read full description

A dive decompression calculator for technical scuba divers. MultiDeco presents the VPM and ZHL-16 decompression model and includes VPM-B, VPM-B/E, ZHL model versions and ZHL-16 + GF. The diver can specify any combination of nitrox or trimix, and as many deco gases as required. Planning methods include both OC and Closed Circuit Rebreather. It includes planning for bailouts with SCR and OC legs in a CCR plan. Includes details of ppO2, END, and gas consumptions. This program includes many of the features from the desktop version such as conservatism adjustments, extended stops, adjustable last stops, the planning monitor system and extensive control over many other planning features. Also included is a set of dive planning tools for calculating best mix, maximum operating depth (MOD), END, EAD and other planning considerations. The Mixer utility for blending nitrox and trimix, is included too.

About

Barefoot Blender

Features
Read full description

Barefoot Blender is a gas blending and dive planning toolkit for trained scuba divers, technical divers, and fill station operators. Use it to plan Nitrox and Trimix fills, estimate top-off outcomes, compare gas sources, calculate fill costs, and check MOD, EAD, END, best mix, and gas density. Safety. Barefoot Blender is for trained divers and fill operators only. It is not a substitute for formal training, agency procedures, shop policy, or calibrated gas analysis. Always verify final oxygen and helium content with calibrated analyzers before diving or labeling cylinders. Incorrect gas blending can cause serious injury or death. Subscription. Barefoot Blender Pro is an annual subscription. Payment is charged through your Apple account. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel subscriptions in Apple account settings. Terms of Use (EULA): https://trimix-blender.com/terms/.

Screenshots

MultiDeco4 screens
Barefoot Blender4 screens

Verdict

The call

The clearest difference is price: Barefoot Blender at Free against MultiDeco's $48.99. Barefoot Blender also leads on update cadence (monthly vs every 3 months) and iOS requirement (15.0 vs 17.6). MultiDeco's advantage is in-app purchases (none vs 1). On 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

Barefoot Blender is free to download; MultiDeco costs $48.99 up front. Barefoot Blender sells 1 in-app purchase, starting at $4.99 per year. MultiDeco asks for nothing beyond the download.

UpkeepUpdate frequency

MultiDeco ships an update every 3 months, Barefoot Blender monthly. Both last shipped on October 6, 2026.

Scorecard4 real differences · 6 level
MultiDeco versus Barefoot Blender: the parameters behind the verdict, then further details
ParameterMultiDecoBarefoot Blender
Price$48.99Free — better
Rating3.9 (11 ratings) — better—
Positive reviews38.9% of reviews—
Number of ratings11 — better—
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size2 MB13 MB
Age rating4+4+
DeveloperHHS Software Corp.Jonah Kowall

In-app purchases

None

MultiDeco

No in-app purchases

1 purchases

Barefoot Blender

Subscriptions1
  • Barefoot Blender Pro$4.991 Year

Questions

Is MultiDeco free?
MultiDeco costs $48.99, with no in-app purchases.
Is Barefoot Blender free?
Barefoot Blender is free to download, with in-app purchases available.
Do MultiDeco or Barefoot Blender have ads?
Neither MultiDeco nor Barefoot Blender shows ads.
Which is updated more often, MultiDeco or Barefoot Blender?
MultiDeco ships an update every 3 months, and Barefoot Blender monthly. Most recently, MultiDeco was updated on October 6, 2026 and Barefoot Blender on October 6, 2026.

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