Comparison

Spool vs DJ App

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

Head to head
About

Spool

This app helps you break free from excessive screen time by making you pause and justify your phone usage. It uses research-backed techniques to disrupt habit loops and offers instant blocking for apps and websites to help you reclaim focus and improve mental clarity.

Highlights
  • Justify phone usage before scrolling
  • AI-powered trigger insights
  • Identify peak phone usage times
  • Instant app and website blocking
  • Reclaim focus and mental clarity
Features
Read full description

Less scrolling, more living. Spool blocks doomscrolling, brainrot, and screen addiction at the source — by making you justify yourself before you scroll. Most screen time blockers don't work because they treat phone addiction like a discipline problem. It's not. It's a habit loop your brain is stuck in — a dopamine cycle reinforced every time you reach for your phone without thinking. Spool interrupts the cycle. Before any blocked app opens, you have to state your case to our AI. Use the same excuse too many times and Spool locks you out automatically. Built on cognitive behavioral techniques and behavioral research on attention and habit formation. WHY YOU'LL LOVE SPOOL - Understand your hidden triggers with daily AI insights - Track your phone addiction patterns over time - Discover when you reach for apps most (and why) - Instant app and website blocking that actually works - Schedule blocking windows for your weak hours - Lock in during deep work with custom focus sessions - Reflect on every excuse you've made and spot the loops - CBT-inspired techniques to break the dopamine cycle - Detox from doomscrolling, brainrot, and mindless scroll WHO IT'S FOR Spool is for anyone struggling with phone addiction, doomscrolling, or losing hours to TikTok, Instagram, Reels, YouTube Shorts, or X. Built for people who've tried Screen Time, willpower, and other app blockers — and want something that actually changes the habit, not just the limit. WHAT MAKES SPOOL DIFFERENT Other apps just block. Spool teaches you about yourself. Every excuse you make becomes data. Every reflection makes you more aware. Every blocked attempt strengthens the new habit. Reclaim your focus. Build a more intentional relationship with your phone. ————————————— Spool Full Access — Weekly Length: 1 week, auto-renewing Price: $4.99 USD / week Spool Full Access — Yearly Length: 1 year, auto-renewing Price: $44.99 USD / year Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Manage or cancel in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://thespoolapp.com/#/privacy

About

DJ App

Features
Read full description

DJ App is a focused live tool for DJs, sound people and music setups. The app shows current dBA level through the iPhone microphone, detects BPM automatically once the signal is loud enough and offers Tap Tempo for manual control. For sets, rehearsals and sound checks, the most important values stay immediately visible: Level, Speed, half and double BPM, plus a live clock with seconds. Features: - Live dBA level with calibration - Auto BPM with a level threshold to avoid unstable analysis on quiet signals - Tap Tempo from the Speed field; manual mode saves battery while Level stays live - Reset for tempo data - Speed calculator for half and double BPM - Current Time with seconds Note: Level metering is intended for practical estimates and can be calibrated against a reference meter. It does not replace a certified sound level meter.

Screenshots

Spool4 screens
DJ App3 screens

Verdict

The call

The clearest difference is in-app purchases: DJ App at none against Spool's 8. DJ App also leads on ads (none vs shown). On price, device support and iOS requirement 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. Spool sells 8 in-app purchases, starting at $4.99 per 7 days. DJ App asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Spool versus DJ App: the parameters behind the verdict, then further details
ParameterSpoolDJ App
PriceFreeFree
Rating4.4 (172 ratings) — better—
Positive reviews71.0% of reviews—
Number of ratings172 — better—
Update frequencyWeekly—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.617.0 — better
Further details — not scored
Size406 MB1 MB
Age rating4+4+
DeveloperSpooli IncDennis-Michael Kern

In-app purchases

8 purchases

Spool

Subscriptions8
  • Spool Features Weekly Subscription$4.997 Days
  • Spool Weekly Subscription$7.997 Days
  • Full Access: Monthly$7.991 Month
Show 5 more
  • Spool Premium Annual$25.001 Year
  • Full Access: Limited Time Offer7 Days trial$34.991 Year
  • Full Access: Yearly$34.991 Year
  • Full Access: Yearly7 Days trial$44.991 Year
  • Full Access: Yearly$44.991 Year
None

DJ App

No in-app purchases

Questions

Is Spool free?
Spool is free to download, with in-app purchases available.
Is DJ App free?
DJ App is free to download, with no in-app purchases.
Do Spool or DJ App have ads?
Spool shows ads; DJ App does not.

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