Comparison

SBD vs Sleep Window

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

Head to head
About

SBD

This app focuses on tracking your progress for the three main powerlifting exercises: squat, bench press, and deadlift. It automatically calculates estimated 1RM, hypertrophy range, and volume, and logs personal bests. You can also record daily conditions, trained muscles, and notes for supplementary workouts.

Highlights
  • Track squat, bench press, and deadlift
  • Automatic estimated 1RM calculation
  • Automatic personal best logging
  • Record daily condition and notes
  • View progress with calendar and graphs
  • Focus on BIG3 exercises
Features
Read full description

BIG3に集中したい人のための、シンプルな記録アプリです。 スクワット、ベンチプレス、デッドリフト。 この3種目を軸に、無駄なく記録できます。 セットごとの重量と回数をすばやく入力でき、 推定1RM・筋肥大レンジ・ボリュームも自動で算出。 1repで過去最高を超えると、MAXとして自動登録されます。 その日のコンディションや鍛えた部位、メモも残せるので、 BIG3以外の補助トレーニングをした日もジム日として記録できます。 成長はカレンダーとグラフで振り返れます。 総合的なトレーニング管理アプリではありません。 あれこれ機能を詰め込まず、BIG3を中心にした記録に集中できる環境を目指しました。 BIG3を本気で伸ばしたい方に使ってもらえたら嬉しいです。

About

Sleep Window

This app transforms your sleep into a currency that funds urban development. As you sleep, your "Sleep Yen" accumulates and is used to build and upgrade a city that evolves from gray concrete to a vibrant, glowing metropolis. Watch your city grow each morning through your window.

Highlights
  • Sleep converted to city development funds
  • AI-generated city evolution in 7 stages
  • Customizable city themes (Japanese, Cyberpunk)
  • Morning window view of your city
  • Save completed cities to collection
Features
Read full description

あなたの睡眠は、睡眠回収局に納付されます。 就寝申告を提出すると、毎秒1 S¥(スリープ円)が自動的に計上。起床申告で納付額が確定し、その資金は管轄区域の都市開発に充当されます。 眠れば眠るほど、窓の外の街は灰色のコンクリートから、灯りが点り、看板が彩り、やがて黄金に輝く理想都市へと変わっていきます。 毎朝5時〜10時、窓を覗いてください。あなたの睡眠が、街をつくっています。 特徴 睡眠時間がそのまま街の発展資金に 7段階の街並み進化をAIがリアルタイム生成 和風・サイバーパンクなど、好きなテーマで自分だけの街を育成 朝だけ見える窓の景色 — 毎日の楽しみに コンプリートした街はコレクションに保存 利用規約 (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SBD3 screens
Sleep Window4 screens

Verdict

The call

The clearest difference is in-app purchases: SBD at none against Sleep Window's 4. SBD also leads on update cadence (every 2 days vs every 10 days). On price, ads, 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. Sleep Window sells 4 in-app purchases, starting at $2.99 per month. SBD asks for nothing beyond the download.

UpkeepUpdate frequency

SBD ships an update every 2 days, Sleep Window every 10 days. The most recent releases landed on October 28, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
SBD versus Sleep Window: the parameters behind the verdict, then further details
ParameterSBDSleep Window
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews—100.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 2 days — betterEvery 10 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better16.1
Further details — not scored
Size6 MB10 MB
Age rating4+4+
DeveloperFuchigami SohtaSAELI, LIMITED LIABILITY COMPANY

In-app purchases

None

SBD

No in-app purchases

4 purchases

Sleep Window

Subscriptions3
  • 特権階級$2.991 Month
  • ベーシックプラン$2.991 Month
  • プレミアム$5.991 Month
One-time1
  • 特別恩赦令(記録復元)$0.99

Questions

Is SBD free?
SBD is free to download, with no in-app purchases.
Is Sleep Window free?
Sleep Window is free to download, with in-app purchases available.
Do SBD or Sleep Window have ads?
Neither SBD nor Sleep Window shows ads.
Which is updated more often, SBD or Sleep Window?
SBD ships an update every 2 days, and Sleep Window every 10 days. Most recently, SBD was updated on October 28, 2026 and Sleep Window on October 7, 2026.

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