Comparison

ゆるストレッチ vs DebuffTimer

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

Head to head
About

ゆるストレッチ

Features
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デスクワークの合間に、たった2分だけ。ゆるストレッチは「続けられる」ことを最優 先に設計されたストレッチ習慣化アプリです。 ■ 気になる部位を選ぶだけ 首・肩・背中・腰など12の部位から選ぶだけで、あなた専用のルーティンを自動作成 。ウォームアップからクールダウンまで、最適な順番で案内します。 ■ タイマーに従うだけ 音声ガイドの代わりに、わかりやすいタイマーとイラストで次のポーズを案内。自然 音BGMでリラックスしながら、ペースを気にせず取り組めます。 ■ 毎日の記録が習慣を作る カレンダーで実施記録を確認。連続記録やバッジでモチベーションをキープ。ロック 画面のLive Activityでストレッチの進行状況も確認できます。 40種類のストレッチから、あなたに合ったルーティンを。今日も2分だけ、始めません か?

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 — 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 — 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 — 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 — 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 — 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 — 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 — use the built-in alarm for mornings. My job ends when you're in bed. Let's start tonight.

Screenshots

ゆるストレッチ4 screens
DebuffTimer4 screens

Verdict

The call

The clearest difference is in-app purchases: ゆるストレッチ at none against DebuffTimer's 1. On price, update cadence, 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. DebuffTimer sells 1 one-off in-app purchase. ゆるストレッチ asks for nothing beyond the download.

UpkeepUpdate frequency

ゆるストレッチ ships an update every 10 days, DebuffTimer weekly. The most recent releases landed on October 11, 2026 and October 17, 2026 respectively.

Scorecard1 real difference · 5 level
ゆるストレッチ versus DebuffTimer: the parameters behind the verdict, then further details
ParameterゆるストレッチDebuffTimer
PriceFreeFree
Update frequencyEvery 10 daysWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad — betteriPhone
Requires iOS17.0 — better18.0
Further details — not scored
Size15 MB19 MB
Age rating4+12+
DeveloperSANWA Inc.kizuku nishimoto

In-app purchases

None

ゆるストレッチ

No in-app purchases

1 purchases

DebuffTimer

One-time1
  • DebuffTimer Pro$1.99

Questions

Is ゆるストレッチ free?
ゆるストレッチ is free to download, with no in-app purchases.
Is DebuffTimer free?
DebuffTimer is free to download, with in-app purchases available.
Do ゆるストレッチ or DebuffTimer have ads?
Neither ゆるストレッチ nor DebuffTimer shows ads.
Which is updated more often, ゆるストレッチ or DebuffTimer?
ゆるストレッチ ships an update every 10 days, and DebuffTimer weekly. Most recently, ゆるストレッチ was updated on October 11, 2026 and DebuffTimer on October 17, 2026.

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