Comparison

Time Timer vs Stroop Effect

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

Head to head
About

Time Timer

This app provides a visual representation of time passing, making it easier to manage tasks and routines. It's designed to be inclusive and flexible for various needs, from educational settings to personal productivity.

Highlights
  • Iconic visual timer with disappearing disk
  • Inclusive design for various needs
  • Flexible routine creation and sequencing
  • Multiple timers and preset options
  • Customizable sound, vibration, and color
Features
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Feel time move. Stay on track. Stress less. From the makers of the original red disk timer, the Time Timer® App transforms the powerful visual tool trusted by families, teachers, therapists, and productivity pros for over 30 years into a fully customizable experience on your device. Whether you’re helping students build focus, supporting kids through daily routines, or simply managing your own tasks without overwhelm—Time Timer makes time feel more tangible and manageable. What Makes Time Timer Different? Iconic Visual Timer Watch time disappear as the disk gets smaller—a simple, intuitive way to feel time passing, not just track it. Inclusive by Design Trusted by people with ADHD, Autism, executive function challenges, or just a busy brain. Invented by a mom for her child, Time Timer has supported users of all abilities for decades. Flexible for Every Routine Use it once or build structured sequences. Create presets for daily habits. Run multiple timers at once. Make routines visual and calm transitions. Trusted in Schools, Homes & Workplaces From kindergarten classrooms to therapy sessions to boardrooms, Time Timer helps reduce resistance, improve focus, and make time awareness easier for everyone. Free Features Include: Create up to 3 timers Run multiple timers at once Use the original 60-minute red disk — or choose any duration Adjust sound, vibration, and color with limited options Premium Features Unlock Even More: Unlimited customization Build routines with timer sequencing (morning checklists, therapy steps, work sprints) Organize timers with Groups Sync across mobile and desktop devices Quick Set +/- buttons for fast adjustments Customize disk size and detail level Use Time Timer For: Morning and bedtime routines Homework and study blocks Transitions between tasks Work sprints and focus sessions Therapy, coaching, or classroom support Daily life skills for kids, teens, and adults Why It Works Time Timer® transforms time from something abstract and invisible into something your eyes can track and your brain can trust. That’s why it’s backed by research, loved by educators, and recommended by occupational therapists worldwide. Created for real life. Trusted for decades. Download Time Timer today and feel the difference.

About

Stroop Effect

Features
Read full description

Classic game exploring the Stroop Effect

Screenshots

Time Timer4 screens
Stroop Effect4 screens

Verdict

The call

The clearest difference is in-app purchases: Stroop Effect at none against Time Timer's 1. Stroop Effect also leads on iOS requirement (11.0 vs 16.0). Time Timer's advantage is update cadence (every 2 weeks vs every 10 months). On price, ads and device support 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. Time Timer sells 1 in-app purchase, starting at $9.95 per year. Stroop Effect asks for nothing beyond the download.

UpkeepUpdate frequency

Time Timer ships an update every 2 weeks, Stroop Effect every 10 months. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
Time Timer versus Stroop Effect: the parameters behind the verdict, then further details
ParameterTime TimerStroop Effect
PriceFreeFree
Rating4.6 (15K ratings) — better—
Positive reviews62.9% of reviews—
Number of ratings15K — better—
Update frequencyEvery 2 weeks — betterEvery 10 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPad, iPod
Requires iOS16.011.0 — better
Further details — not scored
Size174 MB58 MB
Age rating4+4+
DeveloperTime Timer LLCMichal Mandrysz

Bugs and requests

Time Timer

Reported bugs

4 issues
  • No timers show up in app
  • Timer stops working when phone is locked
  • Inconsistent dark mode implementation
  • Vibration doesn't work as expected

Requested features

7 requests
  • Add Apple Watch complication
  • Allow rearranging of timers
  • Ability to continue timer after time is up
  • Option to change timer color and background
  • Lock timer settings on Apple Watch
Show 2 more
  • Add percentage countdown option
  • Integrate current time into app

Stroop Effect

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Time Timer

Subscriptions1
  • Unlock all Time Timer features$9.951 Year
None

Stroop Effect

No in-app purchases

Questions

Is Time Timer free?
Time Timer is free to download, with in-app purchases available.
Is Stroop Effect free?
Stroop Effect is free to download, with no in-app purchases.
Do Time Timer or Stroop Effect have ads?
Neither Time Timer nor Stroop Effect shows ads.
Which is updated more often, Time Timer or Stroop Effect?
Time Timer ships an update every 2 weeks, and Stroop Effect every 10 months. Most recently, Time Timer was updated on November 9, 2026 and Stroop Effect on November 6, 2026.

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