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Endurance Apptitude

An independent iPhone app studio

Focused iPhone apps for the moments that matter

Endurance Apptitude is a one-person indie studio. We make simple apps for everyday moments: remembering birthdays, timing contractions, falling asleep to a fan and counting things. Each one is free to download.

Push-ups counter at 248 with large plus, minus and reset buttons
Birthday list with today's birthday at the top and days left for everyone else
Contraction in progress with a live timer and a breathing animation
Fan Noise player with the Classic Ceiling Fan sound, volume and sleep timer

Our apps

01Birthdays & reminders

Birthday Countdown app icon

Birthday Countdown

See how many days until every birthday and get reminded before the big day.

  • Reminders at the time you choose
  • Home Screen widgets
  • No account needed
Explore Birthday Countdown
Monthly calendar with every birthday of the month marked
Birthday list in dark mode with group filters and days left for each person
Birthday list with today's birthday at the top and days left for everyone else

02Labor & contractions

Contraction Tracker & Timer app icon

Contraction Tracker & Timer

Time each contraction with one tap and see your pattern for the last hour.

  • One big button, easy at 3 a.m.
  • 5-1-1 pattern check
  • Timing is always free
Explore Contraction Timer
Time since the last contraction, last-hour summary and 5-1-1 pattern card
History of contractions with time, duration and rest between them
Contraction in progress with a live timer and a breathing animation

03Sleep sounds

Fan Noise app icon

Fan Noise

Real fan sounds for sleep that keep playing with your screen locked.

  • Plays with the screen locked
  • Sleep timer with fade-out
  • Works offline
Explore Fan Noise
Classic Ceiling Fan playing with a sleep timer counting down
Fan sound picker: ceiling, tower, window box, industrial and quiet breeze
Fan Noise player with the Classic Ceiling Fan sound, volume and sleep timer

04Counting

Tally Counter app icon

Tally Counter

Count anything with a big + button, haptic feedback and as many counters as you need.

  • Unlimited named counters
  • Haptic feedback on every tap
  • No account, no analytics
Explore Tally Counter
List of counters: push-ups, glasses of water, event check-ins and pages read
Insights with total actions, daily average, peak hour and activity by hour
Push-ups counter at 248 with large plus, minus and reset buttons

05Intermittent fasting

Fasting Timer app icon

Fasting Timer

Track your intermittent fast with a live timer, fasting stages and streaks, right on your Lock Screen.

  • Plans from 12:12 to OMAD, free
  • Live Activity and widgets
  • No account needed
Explore Fasting Timer
Fasting history with streaks and a monthly calendar
Fasting stats and weekly chart
Running 16:8 fast at 13 hours with a progress ring

Looking for another app of ours? See all apps

New

Coming soon to the App Store

The studio

How we build

Simple apps for everyday moments, each one doing a single job and doing it with care.

  1. One job per app

    Each app solves one problem and opens straight to it. No feeds, no clutter.

  2. No account

    Nothing to sign up for. What you enter is saved on your iPhone.

  3. Free to start

    Every app is free to download. An optional Premium unlocks extras; the core job stays free.

  4. Made by one person

    Endurance Apptitude is a one-person indie studio. The same person designs, builds and answers your email.

Contact

Questions, ideas or a bug? Say hello.

A real person reads every message.

support@enduranceapptitude.com