Comparison

Simple Interval Timer vs Aika

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

Head to head
About

Simple Interval Timer

Features
Read full description

Flexy Timer – The Ultimate Minimalist Workout Timer Flexy Timer is a sleek, intuitive workout timer designed for those who value focus and simplicity. With a clean, distraction-free interface, it helps you stay in the zone and get the most out of every workout. Perfect for HIIT, Tabata, CrossFit (AMRAP/EMOM/WOD), Boxing, Circuit Training, Sprint Intervals, Yoga, and Kettlebell Workouts. Flexy is the perfect tool to help you structure your time and stay on trackβ€”whether you're working out, meditating, studying, or managing your daily routines. Here’s how Flexy can support you: -Workouts & Exercise: Easily time your gym sessions, interval runs, CrossFit, HIIT, and Tabata workouts. -Yoga & Meditation: Set calming intervals to guide your yoga practice or meditation sessions with precision. -Focus & Productivity: Use Flexy as a Pomodoro timer to stay productive while studying, reading, or working. -Custom Routines: Create and save personalized interval timers for any activityβ€”whether it's fitness, focus, or relaxation. No matter your goal, Flexy Timer makes timing simple, flexible, and effective. Train smarter. Stay focused. Let Flexy Timer be your easy-to-use workout companion! Flexy Timer Premium Features (In App Purchase): * Quick Start – Get moving in seconds. * Custom Timers – Personalize intervals to match your training. * Curated Music – Stay motivated with handpicked soundtracks. * Workout Log – Track and analyze your progress. In-App Purchase: β€”β€”All features of Simple Interval Timer are available for free during the first three uses. β€”β€”After that, a monthly or yearly subscription is required to continue using the timers. Privacy Policy: https://pdfhost.io/v/72mty7BYHd_Privacy_Policy_-_Simple_Interval_Timer__Flexy Terms of Use: https://pdfhost.io/v/3543sYv6Cr_Terms_of_Use_-_SEAD_Fitness

About

Aika

Features
Read full description

Aika is a clean workout and interval timer designed for fast setup, clear timing, and focused training. Use it for HIIT, EMOM, AMRAP, Tabata, circuits, boxing rounds, MMA, mobility work, stretching, home workouts, and gym sessions. Start from built-in timers, adjust them to match your workout, build custom multi-block sessions, save your favorites, and train with a large, easy-to-read timer. Features: * Built-in workout timers for EMOM, AMRAP, Tabata, boxing rounds, countdown, and count up * Dedicated Rest Timer for tracking recovery between sets * Rep Pace helps you maintain a steady rhythm with sound cues and optional vibration. Set your pace in reps per minute or seconds per rep, then choose a duration or target rep count. * Edit timer names, rounds, work, rest, and duration values * Build custom workouts from AMRAP, EMOM, interval, combat sports, work, and rest blocks * Reorder, duplicate, edit, and save workout blocks * Save favorites and custom workouts for quick reuse * Quick launch list with recently used workouts * Large, clear timer readout for at-a-glance use * Choose Sport, Sport Calm, Clean, Gym Digital or Gym Digital Classic timer themes * Sport themes show phase progress with a ring in portrait and a bar in landscape, following countdown or count-up * Next-up display for upcoming timer phases * Sound cues for phase changes and session completion, including a 10-second warning for combat sports rounds * Voice cues in English and Finnish, independently of the app language, with Leo available for free * Preview every voice in settings before choosing, including Pro voices * Hear timer cues in the background and with your screen locked when sounds are enabled * Undo set completions and skipped rests in Rest Timer, including the final set from the results screen * Swipe to finish For Time workouts without round tracking; see your finish time and save it to the workout log * Countdown and count-up modes * Portrait and landscape support * Timer preferences including warm-up, final rest, precision, sound, and orientation * Full-screen clock mode with 12h or 24h display * Track rounds and round times in AMRAP and For Time workouts * Workout history with results and round details stored on your device * Add notes to completed or stopped workouts * Give workout log entries custom names * Replay previous workouts from your log * Quick Edit offers more duration options and remembers your most recently used settings for each timer * English, Finnish, Swedish, Spanish, Brazilian Portuguese, German, French, and Italian language support Aika Pro unlocks Workout Builder, favorites, and custom time controls. Pro also adds the Maya and Nora voices, plus round numbers and extra time announcements for all voices, including Leo. Monthly and yearly subscription options are available, and purchases can be restored from the app. Aika keeps the experience straightforward: set up your timer, start your workout, and stay focused on training. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Simple Interval Timer4 screens
Aika4 screens

Verdict

The call

The clearest difference is device support: Aika at 3 against Simple Interval Timer's 1. Aika also leads on iOS requirement (15.0 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.

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. Simple Interval Timer sells 2 in-app purchases, starting at $0.99 per month and Aika sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

Scorecard2 real differences Β· 4 level
Simple Interval Timer versus Aika: the parameters behind the verdict, then further details
ParameterSimple Interval TimerAika
PriceFreeFree
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad, iPod β€” better
Requires iOS17.615.0 β€” better
Further details β€” not scored
Size23 MB53 MB
Age rating4+4+
Developer阳 η«₯Mikko Lehtinen

In-app purchases

2 purchases

Simple Interval Timer

Subscriptions2
  • Monthly Premium3 Days trial$0.991 Month
  • Yearly Premium3 Days trial$4.991 Year
2 purchases

Aika

Subscriptions2
  • Aika Pro Monthly$1.991 Month
  • Aika Pro Yearly7 Days trial$12.991 Year

Questions

Is Simple Interval Timer free?
Simple Interval Timer is free to download, with in-app purchases available.
Is Aika free?
Aika is free to download, with in-app purchases available.
Do Simple Interval Timer or Aika have ads?
Neither Simple Interval Timer nor Aika shows ads.
Which is updated more often, Simple Interval Timer or Aika?
Simple Interval Timer ships an update weekly, and Aika weekly. Most recently, Simple Interval Timer was updated on October 28, 2026 and Aika on October 31, 2026.

Other comparisons