Comparison

4k Weeks vs Explosive Sprint Timer

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

Head to head
About

4k Weeks

Features
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4000 Weeks: Your Life in Perspective Visualize your life's finite timeline in a simple, elegant way. Based on the concept that the average human lifespan is roughly 4000 weeks, this app helps you gain perspective on how you spend your most precious resource: time. Features: Clean, minimalist weekly countdown display Home screen and lock screen widgets for daily reminders Automatic synchronization with Apple Health (optional) Privacy-focused - all data stays on your device 4000 Weeks isn't about creating anxiety, but clarity. When you can see your life laid out in weeks, priorities become clearer and choices more intentional. Use this app as a gentle reminder to: Focus on what truly matters Make more deliberate life choices Appreciate the time you have Live a life true to yourself Simple, thoughtful, and transformative - 4000 Weeks helps you see time differently and make every week count.

About

Explosive Sprint Timer

This app provides frame-accurate sprint timing directly from video, eliminating the need for stopwatches. Analyze performance with professional timer overlays and benchmark results against other athletes worldwide. It's designed for serious performance testing across various sports.

Highlights
  • Frame-accurate sprint timing
  • Professional timer overlay export
  • On-device video processing
  • Benchmark against global athletes
  • Track speed improvements
  • Supports various sprint and shuttle drills
Features
Read full description

TRAIN LIKE IT MATTERS. Explosive Sprint Timer is a high-precision sprint timer built for serious performance testing. Measure every sprint test and speed test with frame-by-frame accuracy — directly from video. No stopwatches. No guessing. Just consistent, professional sprint timing. Import a video, select the exact start and finish frames, and generate a clean timer overlay ready to export and share. Then log your result to Explosive Score — and see how you rank against thousands of athletes worldwide. THE SMARTER SPRINT TIMER Explosive Sprint Timer is ideal for: • 40 yard dash timing • Acceleration and flying sprint tests • Shuttle run timing (5-10-5, agility drills) • Soccer speed testing • Football speed test and combine drills • Baseball sprint testing • Basketball speed and conditioning work • Track and field sprint analysis Whether you're training on grass, turf, court, or track, this sprint timer adapts to any sport. HOW IT WORKS 1. Record your sprint using your phone's camera (e.g. 120/240 fps). 2. Import the clip and select precise start and finish frames. 3. Export a professional timer overlay — ready to review or share. 4. Log your result to Explosive Score and track your progress over time. KEY FEATURES • Frame-accurate sprint timing • Precision based on your video frame rate (e.g. ~0.004s per frame at 240 fps) • Professional timer overlay burned into exported videos • Fast workflow: import → select → export • Benchmark your results against thousands of athletes worldwide • Track your development and see improvements over time • Designed for consistent sprint test and speed test results • Share instantly via your device BUILT FOR COACHES, TEAMS AND ATHLETES Use Explosive Sprint Timer to: • Track speed improvements over time • Benchmark results against thousands of athletes globally • Compare sprint test results across sessions and athletes • Analyze acceleration and top speed • Standardize shuttle run timing across sessions • Deliver clear performance feedback PRIVACY-FIRST DESIGN • No accounts required to time sprints • No data collection • All video processing happens on-device Your sprint videos stay on your phone. Result logging to Explosive Score is optional and always in your control. SUBSCRIPTION Explosive Sprint Timer is available via subscription. Payment and subscription management are handled securely through your Apple ID. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

4k Weeks4 screens
Explosive Sprint Timer4 screens

Verdict

The call

The clearest difference is price: Explosive Sprint Timer at Free against 4k Weeks's $1.99. Explosive Sprint Timer also leads on iOS requirement (13.0 vs 18.4). 4k Weeks's advantage is in-app purchases (none vs 11). On 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

Explosive Sprint Timer is free to download; 4k Weeks costs $1.99 up front. Explosive Sprint Timer sells 11 in-app purchases, starting at $3.99 per 7 days. 4k Weeks asks for nothing beyond the download.

Scorecard3 real differences · 6 level
4k Weeks versus Explosive Sprint Timer: the parameters behind the verdict, then further details
Parameter4k WeeksExplosive Sprint Timer
Price$1.99Free — better
Rating—1.0 (1 ratings) — better
Number of ratings—1 — better
Update frequency—Every 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Subscription
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.413.0 — better
Further details — not scored
Size9 MB99 MB
Age rating4+4+
DeveloperALBERT DONAIRE ESCRIGASExplosive AS

In-app purchases

None

4k Weeks

No in-app purchases

11 purchases

Explosive Sprint Timer

Subscriptions11
  • Weekly Plan$3.997 Days
  • Try Free • Weekly1 Month trial$3.997 Days
  • Try Free • Weekly3 Days trial$3.997 Days
Show 8 more
  • Try Free • Weekly7 Days trial$3.997 Days
  • Try Free • Monthly1 Month trial$8.991 Month
  • Try Free • Monthly3 Days trial$8.991 Month
  • Try Free • Monthly7 Days trial$8.991 Month
  • Try Free • Annual3 Days trial$44.991 Year
  • Annual Plan$49.991 Year
  • Try Free • Annual1 Month trial$49.991 Year
  • Try Free • Annual7 Days trial$49.991 Year

Questions

Is 4k Weeks free?
4k Weeks costs $1.99, with no in-app purchases.
Is Explosive Sprint Timer free?
Explosive Sprint Timer is free to download, with in-app purchases available.
Do 4k Weeks or Explosive Sprint Timer have ads?
Neither 4k Weeks nor Explosive Sprint Timer shows ads.

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