Comparison

Martin's Training Diary vs KO Interval Timer

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

Head to head
About

Martin's Training Diary

Features
Read full description

Built for myself. Good enough to share. I'm Martin β€” 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 β€” 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 β€” no questions asked, nothing gets charged. Pro is available as a monthly subscription or a one-time lifetime purchase β€” 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/

About

KO Interval Timer

Features
Read full description

YOUR ROUNDS. YOUR PACE. KO Interval Timer is a flexible interval timer for boxing, HIIT, circuit training, stretching and anything else that works in rounds. Create your timer, choose your cues and keep a record of every sessionβ€”all in one app. BUILD A TIMER THAT FITS Set your work and rest periods, choose the number of rounds and add a preparation countdown. Give your phases custom names, save your favourite timers and duplicate them when you want to try something different. STAY FOCUSED WITH SOUND AND VOICE Choose from a range of timer sounds, spoken countdowns and coaching voices. Personalise your start, phase-change and completion cues, with optional haptic and visual alerts to help you follow each session. KEEP A WORKOUT JOURNAL Go beyond a finish time. Add notes, a photo and tags to your completed workouts. Record how you felt before and after, rate the difficulty and optionally log your bodyweight. LOOK BACK AT YOUR PROGRESS Review your workout history, completed rounds and elapsed time. Follow your training streaks and activity over time, and revisit your journal to see what worked for you. QUICK ACCESS WITH WIDGETS AND SIRI Access saved timers through home-screen widgets and use Siri shortcuts to start a session. See useful training summaries without opening your workout history. MAKE IT YOURS Choose your accent colour, preferred sounds and coaching voice. Enable the keep-screen-awake setting to keep your timer visible during a session. YOUR JOURNAL STAYS ON YOUR DEVICE Your workout history, notes and photos are stored locallyβ€”not uploaded to our servers. No KO Interval Timer account signup is required. The app does not provide cloud backup or cross-device workout syncing. IMPORTANT TO KNOW KO Interval Timer is designed for foreground use. Keep the app open and your screen awake during sessions; it does not provide background or lock-screen timer alerts. An internet connection is needed to verify subscription access. SUBSCRIPTION REQUIRED An active subscription is required to use the timer and other protected features. Available plans, prices and billing periods are displayed before purchase. Payment is charged to your Apple account when you confirm a purchase. Subscriptions renew automatically unless cancelled before renewal under Apple’s applicable terms. You can manage or cancel your subscription in your Apple account settings. Deleting the app does not cancel your subscription. Privacy Policy: https://koappstudio.com/embed/ko-interval-timer/privacy-policy Terms of Use: https://koappstudio.com/embed/ko-interval-timer/terms-of-use

Screenshots

Martin's Training Diary4 screens
KO Interval Timer4 screens

Verdict

The call

Martin's Training Diary and KO Interval Timer are too close to call on the numbers: across 5 compared parameters β€” price, ads, in-app purchases and device support among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Martin's Training Diary sells 2 in-app purchases, starting at $4.99 per month and KO Interval Timer sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Martin's Training Diary versus KO Interval Timer: the parameters behind the verdict, then further details
ParameterMartin's Training DiaryKO Interval Timer
PriceFreeFree
Update frequencyDailyβ€”
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPod β€” betteriPhone
Requires iOS15.1 β€” better16.4
Further details β€” not scored
Size57 MB74 MB
Age rating4+4+
DeveloperMartin VitekVAVIVA

In-app purchases

2 purchases

Martin's Training Diary

Subscriptions1
  • Pro1 Month trial$4.991 Month
One-time1
  • Pro Lifetime$49.99
2 purchases

KO Interval Timer

Subscriptions2
  • English$3.991 Month
  • English$29.991 Year

Questions

Is Martin's Training Diary free?
Martin's Training Diary is free to download, with in-app purchases available.
Is KO Interval Timer free?
KO Interval Timer is free to download, with in-app purchases available.
Do Martin's Training Diary or KO Interval Timer have ads?
Neither Martin's Training Diary nor KO Interval Timer shows ads.

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