Comparison

InterTimer vs Flapper

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

Head to head
About

InterTimer

Create custom interval training routines with adjustable exercise and rest periods. Receive voice notifications for round changes and visualize remaining time. Track monthly exercise duration with a graph and get reminders to stay consistent with your fitness goals.

Highlights
  • Customizable exercise and rest slots
  • Repeatable rounds
  • Voice notifications for round changes
  • Visual representation of remaining time
  • Monthly exercise time graph
  • Workout reminders
Features
Read full description

๊ฐ„๋‹จํ•˜๊ฒŒ ์„ค์ •ํ•˜์„ธ์š”. InterTimer is Simple ์šด๋™ ๋ฐ ํœด์‹ ์Šฌ๋กฏ์„ ์„ค์ •ํ•˜์—ฌ ๋ผ์šด๋“œ๋ฅผ ๋งŒ๋“ค๊ณ  ๋ฐ˜๋ณตํ•  ๋ผ์šด๋“œ๋ฅผ ์„ค์ •ํ•˜์„ธ์š”. Set Excercise Slot & Rest Slot to create a round and set which rounds to repeat. ๊ฐ ์Šฌ๋กฏ๋งˆ๋‹ค ์‹œ๊ฐ„์„ ์ดˆ ๋‹จ์œ„๋กœ ์„ค์ •ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. You can set the time in seconds for each slot. ์‹œ์ž‘๊ณผ ๋, ์„ค์ •ํ•œ ๋ผ์šด๋“œ๊ฐ€ ๋ณ€๊ฒฝ๋˜๋ฉด ๋ณด์ด์Šค๋กœ ์•Œ๋ ค๋“œ๋ ค์š”. If the start, end, or set round changes, you will be notified by voice. ๋‚จ์€ ์‹œ๊ฐ„์„ ์‹œ๊ฐ์ ์œผ๋กœ ํ‘œํ˜„ํ•ด ๋“œ๋ ค์š”. We provide a visual representation of the remaining time. ํฌ๋กœ์Šคํ•, ํ™ˆ ํŠธ๋ ˆ์ด๋‹, ํƒ€๋ฐ”ํƒ€, Hiit ์„œํ‚ท ๋“ฑ.. ์ธํ„ฐ๋ฒŒ ํŠธ๋ ˆ์ด๋‹์— ์‰ฝ๊ฒŒ ์„ค์ •ํ•˜์—ฌ ์‚ฌ์šฉํ•ด ๋ณด์„ธ์š”. CrossFit, Home training, Tabata, Hiit circuit, etc.. Try setting it up easily for interval training. ๋งค์ผ Interval Timer App ๊ณผ ์šด๋™ ํ•ด๋ณด๋Š”๊ฑด ์–ด๋–จ๊นŒ์š”? How about exercising with the Interval Timer App every day? ๋งค์ผ ํ•˜๋ฃจ ํ•œ๋ฒˆ ๊ฑด๊ฐ•์„ ์ฑ™๊ธฐ๋Š” ์‹œ๊ฐ„์„ ๊ฐ€์ ธ๋ด์š”. Take time to take care of your health once a day. ํ•œ๋‹ฌ์˜ ์šด๋™์‹œ๊ฐ„์„ ๊ทธ๋ž˜ํ”„๋กœ ํ‘œํ˜„ํ•ด ๋“œ๋ ค์š”. We express your exercise time per month in a graph. ์„ค์ •ํ•œ ์•Œ๋ฆผ ์‹œ๊ฐ„์— ์šด๋™์„ ๊ฐ™์ด ํ•˜๋„๋ก ์•Œ๋ ค๋“œ๋ ค์š”. We will remind you to exercise together at the notification time you set.

About

Flapper

This app acts as a gentle daily companion for individuals with ADHD, offering support without lectures or manual logging. It learns your patterns and rhythms to help you stay on track by observing your calendar, reminders, and location.

Highlights
  • Zero-input pattern observation
  • Automatic calendar and reminder integration
  • Anchor event countdowns and preparation steps
  • AI-assisted project decomposition
  • Live Activities for real-time updates
  • Smart routine nudges
  • Medication tracking with effect countdowns
Features
Read full description

Flapper is a gentle daily companion for people living with ADHD. No lectures, no nagging โ€” and no manual logging required. No account, no login โ€” just open and go. It observes your patterns, learns your rhythms, and quietly helps you stay on track. Zero Input, Full Context Most ADHD apps ask you to log everything. Flapper doesn't. It reads your calendar and reminders, learns your places, detects your Focus Mode, and checks the weather โ€” all automatically. It works with your existing iPhone calendar and Apple Reminders so your schedule stays in one place. You just live your day; Flapper builds the picture. Anchor Events โ€” Break It Down Pick the one thing you can't miss today โ€” from your calendar, reminders, or create your own. Flapper counts down, then breaks it into concrete preparation steps โ€” what to bring, what to do before leaving, when to start moving. Each step checks off with a tap. Project Chains โ€” Big Deadlines, Small Steps (Pro) Have a deadline next week? Tell Flapper about your project, answer a few quick questions, and it creates a chain of daily micro-tasks leading up to the deadline. One small step each day โ€” never face the whole mountain at once. Discuss Your Plan with AI (Pro) Tap "Discuss with AI" โ€” it asks focused questions, then updates your checklist in real time. Like having a calm friend help you think through the details. Live Activities See your anchor countdown, medication timer, or task progress on your Lock Screen and Dynamic Island โ€” updating in real time, without opening the app. Smart Routines Set daily routines like meals, exercise, or medication. Flapper learns your usual timing and nudges you at just the right moment โ€” no rigid schedules. Start a routine from the widget and track your progress with Live Activities. Medication Tracking Log your dose with one tap. Watch the effect countdown in real time on your Lock Screen. Track how you feel with simple tags โ€” and generate reports to share with your doctor. Place Learning Flapper quietly learns the places you visit, detects movement, and calculates commute times. Journey & Milestones Completed anchors, routines, and snap check-ins build your personal timeline. Earn milestones for streaks. Pro users get AI-generated daily reports summarizing patterns. Widgets Home and Lock Screen widgets show your next anchor countdown at a glance. The routine widget lets you start a routine right from your Home Screen โ€” the app opens and begins tracking automatically. Data Insights (Pro) Sleep quality tracking, weather-routine correlations, medication effectiveness scoring, daily anomaly detection, and comprehensive daily scores. AI analysis to understand your patterns more deeply. AI-Powered Assistance (Lite & Pro) Flapper suggests anchors, generates checklists, writes personalized nudges, decomposes projects, and wraps up your day โ€” quiet intelligence woven into your daily flow. Free: Routines, snap check-ins, location learning, calendar & reminders, iCloud sync, widgets, Live Activities, milestones, medication countdown, app lock (Face ID). Lite ($3.99/mo): Free + AI conversation, anchor suggestions, smart checklists, personalized nudges. 7-day free trial. Pro ($6.99/mo): Lite + project chains, medication reports, AI discussion, daily reports, data insights. 7-day free trial. Flapper is not a medical device. It does not diagnose, treat, or replace professional medical advice. Privacy Policy: https://aumosita.github.io/laputian_support/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

InterTimer4 screens
Flapper4 screens

Verdict

The call

The clearest difference is review sentiment: InterTimer at 100% against Flapper's 50%. InterTimer also leads on in-app purchases (none vs 2) and device support (3 vs 1). Flapper's advantage is update cadence (daily vs every 27 months). On price and ads there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Flapper sells 2 in-app purchases, starting at $3.99 per month. InterTimer asks for nothing beyond the download.

UpkeepUpdate frequency

InterTimer ships an update every 27 months, Flapper daily. The most recent releases landed on September 15, 2026 and August 1, 2026 respectively.

Scorecard6 real differences ยท 2 level
InterTimer versus Flapper: the parameters behind the verdict, then further details
ParameterInterTimerFlapper
PriceFreeFree
Positive reviews100.0% of reviews โ€” better50.0% of reviews
Update frequencyEvery 27 monthsDaily โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
MonetizationFree โ€” betterFreemium
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS13.0 โ€” better18.0
Further details โ€” not scored
Size34 MB14 MB
Age rating4+4+
Developerbyeongyun kwonYong Lee

Customer experience

InterTimer

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Flapper

Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

InterTimer

No in-app purchases

2 purchases

Flapper

Subscriptions2
  • Flapper Lite7 Days trial$3.991 Month
  • Flapper Pro$6.991 Month

Questions

Is InterTimer free?
InterTimer is free to download, with no in-app purchases.
Is Flapper free?
Flapper is free to download, with in-app purchases available.
Do InterTimer or Flapper have ads?
Neither InterTimer nor Flapper shows ads.
Which is updated more often, InterTimer or Flapper?
InterTimer ships an update every 27 months, and Flapper daily. Most recently, InterTimer was updated on September 15, 2026 and Flapper on August 1, 2026.

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