Comparison

FD Square Breathing Trainer vs EQTool Pro

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

Head to head

FD Square Breathing Trainer

About

FD Square Breathing Trainer

Features

Read full description

Timer to support square breathing. The app will notify you when to start to inhale, hold your breath with full lungs, exhale and when to hold your breath on empty lungs.

About

EQTool Pro

Features

Read full description

EQ-Tool Pro feature&benefits: - Control your training session in real time; - Use the reference charts to enhance your abilities; - Discover our video tutorials: these short clips introduce different compensation tecniques which may help your learning; - Make your own tables, set the thresholds and optimize your training; - Analyse and share your sessions with your buddies, students and instructors.

Screenshots

FD Square Breathing Trainer1 screens

EQTool Pro4 screens

Verdict

The call

The clearest difference is update cadence: EQTool Pro at every 9 days against FD Square Breathing Trainer's every 4 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

FD Square Breathing Trainer ships an update every 4 months, EQTool Pro every 9 days. The most recent releases landed on October 4, 2026 and September 24, 2026 respectively.

Scorecard1 real difference · 5 level

FD Square Breathing Trainer versus EQTool Pro: the parameters behind the verdict, then further details
Parameter	FD Square Breathing Trainer	EQTool Pro
Price	Free	Free
Update frequency	Every 4 months	Every 9 days — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	12.0 — better	13.0
Further details — not scored
Size	10 MB	7 MB
Age rating	4+	12+
Developer	Andreas Horvath	Uba Project srl semplificata

In-app purchases

None

FD Square Breathing Trainer

No in-app purchases

None

EQTool Pro

No in-app purchases

Questions

Is FD Square Breathing Trainer free?

FD Square Breathing Trainer is free to download, with no in-app purchases.

Is EQTool Pro free?

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

Do FD Square Breathing Trainer or EQTool Pro have ads?

Neither FD Square Breathing Trainer nor EQTool Pro shows ads.

Which is updated more often, FD Square Breathing Trainer or EQTool Pro?

FD Square Breathing Trainer ships an update every 4 months, and EQTool Pro every 9 days. Most recently, FD Square Breathing Trainer was updated on October 4, 2026 and EQTool Pro on September 24, 2026.