Comparison

Flaska vs DecoPlanner mobile

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

Head to head

Flaska

A scuba tank calculation tool

About

Flaska

Features

Read full description

A scuba tank calculator utility app -- calculates rock bottom air requirements, gas time, and transfills for various tank sizes.

About

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.

Highlights

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)

Features

Read full description

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

Screenshots

Flaska4 screens

DecoPlanner mobile4 screens

Verdict

The call

Flaska and DecoPlanner mobile are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 17, 2026 and September 25, 2026 respectively.

ScorecardNo meaningful differences

Flaska versus DecoPlanner mobile: the parameters behind the verdict, then further details
Parameter	Flaska	DecoPlanner mobile
Price	Free	Free
Positive reviews	—	40.0% of reviews
Update frequency	Every 2 months	Every 2 months
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	13.0	13.0
Further details — not scored
Size	17 MB	74 MB
Age rating	4+	4+
Developer	Kastelo AB	Global Underwater Explorers Inc.

In-app purchases

None

Flaska

No in-app purchases

None

DecoPlanner mobile

No in-app purchases

Questions

Is Flaska free?

Flaska is free to download, with no in-app purchases.

Is DecoPlanner mobile free?

DecoPlanner mobile is free to download, with no in-app purchases.

Do Flaska or DecoPlanner mobile have ads?

Neither Flaska nor DecoPlanner mobile shows ads.

Which is updated more often, Flaska or DecoPlanner mobile?

Flaska ships an update every 2 months, and DecoPlanner mobile every 2 months. Most recently, Flaska was updated on September 17, 2026 and DecoPlanner mobile on September 25, 2026.