Comparison

Time vs DebuffTimer

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

Head to head
About

Time

Features
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Free on Apple Watch: β–ͺ Heart rate and motion monitoring for DREAM and LIGHT SLEEP wake-up modes. β–ͺ HealthKit-personalized sleep detection for smart wake-up timing. β–ͺ Dream audio notes to support recall and lucid dreaming awareness. Subscription on iPhone and iPad: β–ͺ Reality check notifications to train awareness and support lucid dreaming habits. β–ͺ Dream journal with text and audio. β–ͺ Track focus sessions with daily history. β–ͺ Capture task notes with text and audio recordings. β–ͺ Follow timer progress in real time with Live Activity and Dynamic Island. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

DebuffTimer

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I'm Yoi. Your brain's avatar. How long have you been awake? If you can't answer right away, you're probably already slipping. A sleep-deprived brain performs like a drunk one β€” after 17 hours awake, cognitive tests drop to tipsy levels; at 24 hours, reaction time matches someone well over the limit. That's not a scare tactic β€” it's a measured finding from occupational medicine research. The nasty part? You're the only one who can't tell. Studies have shown that "I'm fine without sleep" is the least reliable self-report there is. So I'll break down in your place. The longer you stay up, the more I turn yellow, then red, then cracked and lifeless. That progression is your "Debuff Score" (0–150). Think of it as your brain's status screen in a game β€” a real-time number and gauge showing how wrecked you really are. WHAT YOU CAN DO - Real-time Debuff Score with a BAC (blood-alcohol) equivalent - HP, Focus, and Judgment gauges plus status-ailment labels - Second-by-second countdown to tonight's bedtime limit - Aggressive nudges at night; just the facts in the morning (no lectures when it's too late to change anything) - Log sleep with a single "Sleep" / "Woke up" tap β€” and backfill missed days with "Around here?" - Optional auto-import from Apple Health (HealthKit) - Weekly wake-up schedule with per-day overrides for shift workers - Auto-shield games and social media at bedtime (Screen Time) with optional Strict Shield - Bedtime-rhythm scatter chart and 30-day trend graph - 5-axis Sleep Score (Duration / Continuity / Regularity / Timing / Architecture) - No penalty for skipped days β€” streaks count "days logged this month," not consecutive runs FREE VS PRO Everything that gets you to bed is free. Debuff Score, notifications, schedule, shield (including Strict Shield), sleep log, last 7 days of data, and overall Sleep Score β€” no paywall. Pro (one-time purchase) adds 5-axis score breakdown, stage timeline, biometrics (heart rate / HRV / respiratory rate), unlimited daily detail history, month-over-month comparison, trend analysis, custom notification wording, and shift patterns. Nice-to-haves, not need-to-haves. ONE HONEST NOTE I'm not a medical device and I can't diagnose anything. The Debuff Score is a research-based estimate, not a clinical reading. Also, I'm bad at waking you up β€” use the built-in alarm for mornings. My job ends when you're in bed. Let's start tonight.

Screenshots

Time4 screens
DebuffTimer4 screens

Verdict

The call

The clearest difference is device support: Time at 3 against DebuffTimer's 1. DebuffTimer's advantage is iOS requirement (18.0 vs 26.2). On price, update cadence, ads and in-app purchases there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Time sells 1 in-app purchase, starting at $2.00 per month and DebuffTimer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. Both last shipped on October 25, 2026.

Scorecard2 real differences Β· 4 level
Time versus DebuffTimer: the parameters behind the verdict, then further details
ParameterTimeDebuffTimer
PriceFreeFree
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, Apple Watch β€” betteriPhone
Requires iOS26.218.0 β€” better
Further details β€” not scored
Size7 MB19 MB
Age rating4+12+
DeveloperAndrii Ponomarovkizuku nishimoto

In-app purchases

1 purchases

Time

Subscriptions1
  • Subscribe7 Days trial$2.001 Month
1 purchases

DebuffTimer

One-time1
  • DebuffTimer Pro$1.99

Questions

Is Time free?
Time is free to download, with in-app purchases available.
Is DebuffTimer free?
DebuffTimer is free to download, with in-app purchases available.
Do Time or DebuffTimer have ads?
Neither Time nor DebuffTimer shows ads.
Which is updated more often, Time or DebuffTimer?
Time ships an update weekly, and DebuffTimer weekly. Most recently, Time was updated on October 25, 2026 and DebuffTimer on October 25, 2026.

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