Comparison

Interval Timer □ HIIT Timer vs precog

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

Head to head
About

Interval Timer □ HIIT Timer

Create custom workout timers with adjustable intervals for exercise and rest. Track your progress with detailed history and statistics, and repeat past workouts easily. Enjoy audio cues without interrupting your music.

Highlights
  • Customizable intervals
  • Workout and rest timers
  • Voice or beep guides
  • Background audio support
  • Workout history and statistics
  • Repeat previous workouts
Features
Read full description

A simple and beautiful interval timer. 1. Drag to set your custom intervals for workout, rest, rounds, etc 2. Tap to start. Interval Timer doesn't interfere with your music or other apps: ∙ Listen to your music apps while you workout. ∙ Voice or beep guides for every workout. ∙ You can leave the app and still listen to the audio guides, in order to follow a workout you found online. And no need to manually record your workouts: ∙ Detailed history and statistics pages to track your progress. ∙ Repeat a previous workout from your history, so you don't need to set it again. If you have any ideas for how to improve the app, just tap "Contact Support' inside the app and let us know! We are always trying to improve Interval Timer This app includes an optional auto-renewable subscription (Premium Pass): Premium Pass beings with a free trial period, then an auto-renewable monthly subscription when trial ends. Payment will be charged to your Apple account at confirmation of purchase and will automatically renew (at the duration/price selected) unless auto-renew is turned off at least 24 hrs before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your Apple Account Settings after purchase. Any unused portion of the free initial period will be forfeited when you purchase a subscription. Privacy Policy: https://float.support/interval-timer/privacy Terms of Use: https://float.support/interval-timer/terms

About

precog

Features
Read full description

Every Sunday, precog draws an AI portrait of who you become. A behavior-driven future self at 1, 5, and 10 years out, built from the week you just lived. Pure ritual, one minute a day. THE WEEKLY FUTURE-SELF RITUAL You upload one baseline photo. Through the week you log sleep, exercise, and water, a minute at a time. Every Sunday at 7 PM the portrait lands in your home screen. Resolution starts low and sharpens with every log; gaps blur the future. BEHAVIOR-DRIVEN AI PORTRAIT Three futures, side by side: PREDICTION - where this week is taking you WORST - if every habit slipped BEST - if you doubled down The triptych moves week by week. Watch your prediction drift toward the pole you're choosing. 1, 5, AND 10-YEAR HORIZONS Pro members see the same triptych at three time horizons. The same week, projected one year, five years, ten years out. Habit changes that look invisible at 1 year compound visibly at 10. BUILD HABITS THAT CHANGE YOUR FACE In 2011, Stanford research by Dr. Hal Hershfield showed people who saw an aged version of themselves saved twice as much for retirement. precog brings that mirror into your week. Not "someday you", next- Sunday you. The portrait is not a forecast. It's a compass: three poles between which the next decade of your face is being decided. FREE HABIT TRACKER + WEEKLY REVEAL Two free Sundays let you see your prediction and your envelope. After that, the future-portrait surface is Pro-only, but habit tracking keeps working without a subscription. Sleep, exercise, hydration logs remain yours. Pro adds: - Weekly triptych at 1Y, 5Y, and 10Y - Higher-resolution portraits across every horizon - Past-week deep dives - sleep, exercise, hydration broken down - Future revisions as your habits change Plans: - Future Self Monthly - $9.99 / month - cancel anytime - Future Self Annual - $79.99 / year - 33% off monthly - Lifetime Future Portrait - $199.99 once - keeps Pro forever YOUR PHOTO STAYS YOURS The baseline image is uploaded once and never used outside your weekly portrait. With your explicit in-app consent, your selfie and a numeric summary of the week's logs travel briefly to Google's Gemini API to render the portrait - described in detail in the Privacy Policy. You can revoke AI portrait service consent anytime in Settings. We do not sell, train on, or share user photos. No ads, no third-party analytics SDKs. THE WEEKLY CHECK-IN precog is one ritual repeated. Sunday evenings, you sit with the portrait. Most weeks the prediction barely shifts. Some weeks it moves markedly - toward the BEST, or toward the WORST. That movement is the point. The future you're heading into is being decided in the week you just lived. Built for a minute a day and a Sunday viewing, not a tracking grind. This app uses generative AI (Google Gemini 3 Pro Image) to render weekly future-self portraits, only after you grant in-app consent. Generated images are predictions based on your logged habits, not photographs and not medical, dermatological, or clinical advice. LEGAL Terms of Use: https://precog.vibeland.app/terms Privacy Policy: https://precog.vibeland.app/privacy

Screenshots

Interval Timer □ HIIT Timer4 screens
precog4 screens

Verdict

The call

The clearest difference is update cadence: precog at every 2 weeks against Interval Timer □ HIIT Timer's every 5 weeks. Interval Timer □ HIIT Timer's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 26.0). On price, ads and in-app purchases 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. Interval Timer □ HIIT Timer sells 5 in-app purchases, starting at $1.99 per month and precog sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Interval Timer □ HIIT Timer ships an update every 5 weeks, precog every 2 weeks. The most recent releases landed on October 23, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 7 level
Interval Timer □ HIIT Timer versus precog: the parameters behind the verdict, then further details
ParameterInterval Timer □ HIIT Timerprecog
PriceFreeFree
Rating4.8 (87K ratings) — better—
Positive reviews60.8% of reviews—
Number of ratings87K — better—
Update frequencyEvery 5 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better26.0
Further details — not scored
Size34 MB19 MB
Age rating4+12+
DeveloperFloat Tech, LLCSoyeon Noh

Bugs and requests

Interval Timer □ HIIT Timer

Reported bugs

3 issues
  • Timer not always accurate
  • Favorites/saved workouts feature not working
  • Inconsistent behavior when pausing/resuming

Requested features

3 requests
  • Ability to save and name custom workouts
  • More flexibility in exercise/rest time settings
  • Option to adjust volume of voice prompts

precog

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Interval Timer □ HIIT Timer

Subscriptions2
  • Premium Pass7 Days trial$1.991 Month
  • Premium Pass7 Days trial$2.991 Month
One-time3
  • Lifetime Pass$14.99
  • Lifetime Pass$19.99
  • Premium Forever Promo$29.99
2 purchases

precog

Subscriptions2
  • Pro Monthly$9.991 Month
  • Pro Annual14 Days trial$79.991 Year

Questions

Is Interval Timer □ HIIT Timer free?
Interval Timer □ HIIT Timer is free to download, with in-app purchases available.
Is precog free?
precog is free to download, with in-app purchases available.
Do Interval Timer □ HIIT Timer or precog have ads?
Neither Interval Timer □ HIIT Timer nor precog shows ads.
Which is updated more often, Interval Timer □ HIIT Timer or precog?
Interval Timer □ HIIT Timer ships an update every 5 weeks, and precog every 2 weeks. Most recently, Interval Timer □ HIIT Timer was updated on October 23, 2026 and precog on October 13, 2026.

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