Comparison

BB Arena vs Martin's Training Diary

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

Head to head

Martin's Training Diary

Your offline workout journal

Free

💪 Health & Fitness

No ratingsView app →

About

BB Arena

This app is a multifunctional sports center located in Prague, offering a wide range of activities for all ages and abilities. It provides various sports facilities for professional athletes, families, seniors, and individuals with disabilities.

Highlights

Multifunctional sports center
Activities for all ages and abilities
Badminton courts
Tennis courts
Table tennis
Parkour facilities

Features

Read full description

BB arena se nachází v městské části Praha Letňany, a to v přímé blízkosti nákupního centra OC Letňany, plaveckého bazénu Lagoon a hokejového stadionu Icearena naproti Hurricane Factory a jsme součástí velkého sportovního komplexu. BB arena je Pražské multifunkční sportovní centrum, které se škálou svých aktivit zaměřuje nejen na profesionální a amatérské sportovce, ale nabízí také sportovní vyžití rodinám s dětmi, seniorům či handicapovaným sportovcům. U nás najdete hned několik sportovišť, která lze využít k různým sportovním aktivitám, např. badminton, tenis, stolní tenis, florbal, šerm, basketbal, parkour a další.

About

Martin's Training Diary

Features

Read full description

Built for myself. Good enough to share. I'm Martin — a dad, a lifter, and a solo developer. I built this training diary because I was tired of paying subscriptions and sending my data to someone's cloud. So I made my own. YOUR DATA STAYS ON YOUR PHONE No account. No cloud. No tracking. Everything is stored locally on your device. Back up to iCloud whenever you want — on your terms. FREE FOREVER - Unlimited workouts, sets, reps, weight - Templates and custom exercises - Stopwatch and rest timer - Full workout history with calendar - Personal records (PR) PRO (30-day free trial) - GPS routes with map - Progress charts: weight, body fat, sleep, cardio, heart rate, correlations - Nutrition diary with offline barcode scanner (51,000+ products) - Apple Health sync (workouts, steps, calories from Apple Watch) - iCloud backup & restore - All visual themes Try Pro free for 30 days. If it's not for you, keep the free version — no questions asked, nothing gets charged. Pro is available as a monthly subscription or a one-time lifetime purchase — pay once, keep it forever 8 languages: English, Czech, Slovak, German, French, Spanish, Portuguese, Polish. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

BB Arena4 screens

Martin's Training Diary4 screens

Verdict

The call

The clearest difference is in-app purchases: BB Arena at none against Martin's Training Diary's 2. BB Arena also leads on iOS requirement (9.3 vs 15.1). Martin's Training Diary's advantage is update cadence (daily vs every 12 months). On price, 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

Both are free to download. Martin's Training Diary sells 2 in-app purchases, starting at $4.99 per month. BB Arena asks for nothing beyond the download.

UpkeepUpdate frequency

BB Arena ships an update every 12 months, Martin's Training Diary daily. The most recent releases landed on October 14, 2026 and October 17, 2026 respectively.

Scorecard3 real differences · 5 level

BB Arena versus Martin's Training Diary: the parameters behind the verdict, then further details
Parameter	BB Arena	Martin's Training Diary
Price	Free	Free
Positive reviews	33.3% of reviews	—
Update frequency	Every 12 months	Daily — better
Ads	No	No
In-app purchases	No — better	Yes
Monetization	Free	—
Devices	iPhone, iPod	iPhone, iPod
Requires iOS	9.3 — better	15.1
Further details — not scored
Size	35 MB	57 MB
Age rating	4+	4+
Developer	INSPIRE CZ	Martin Vitek

In-app purchases

None

BB Arena

No in-app purchases

2 purchases

Martin's Training Diary

Subscriptions1

Pro1 Month trial$4.991 Month

One-time1

Pro Lifetime$49.99

Questions

Is BB Arena free?

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

Is Martin's Training Diary free?

Martin's Training Diary is free to download, with in-app purchases available.

Do BB Arena or Martin's Training Diary have ads?

Neither BB Arena nor Martin's Training Diary shows ads.

Which is updated more often, BB Arena or Martin's Training Diary?

BB Arena ships an update every 12 months, and Martin's Training Diary daily. Most recently, BB Arena was updated on October 14, 2026 and Martin's Training Diary on October 17, 2026.