Comparison

Plumb vs HIIT Note

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

Head to head
About

Plumb

Features
Read full description

Sit tall, without thinking about it. Plumb is a calm, private posture-awareness companion. It learns the comfortable "tall" you set for yourself, gently notices when your head drifts forward, and nudges you to ease back — at your desk, or hands-free through your AirPods. A prompt to notice, not a verdict. Plumb learns your neutral, not a textbook ideal — and the fastest way to lose your trust would be to overclaim, so it stays plain-spoken about what it can and can't do. TWO WAYS TO USE IT Hands-free with AirPods — the everyday mode. Plumb reads your head position from compatible AirPods or Beats, so your phone can stay pocketed or locked. A soft tone cues you the moment you drift past your own threshold, and goes quiet the instant you ease back. Camera at your desk — the screen-attended alternative. The front TrueDepth camera reads your head position at desk distance — and your shoulders when they're in view. Frames are processed in the moment and immediately discarded — never previewed, saved, or uploaded. It can't see your lower back, and we won't pretend otherwise. CALM BY DESIGN • A gentle nudge — a soft tone, a tap, or both. It gets slightly more insistent on a long slump, and stops the moment you ease back. • Breathing and small shifts inside your neutral zone never count. • A "held tall" timer tracks your time in a comfortable position. • A stylised living figure reflects how you're holding your head — no camera image or video is ever stored or shown back. • Insights answers one honest question: am I improving? A clear average, an honest change once there's enough history, and quiet days left as blank space, never guessed. • Learn — six short, evidence-anchored reads on why noticing your posture matters, each with its limits stated plainly. YOUR POSTURE NEVER LEAVES YOUR PHONE • Everything is analysed on your device. There are no Plumb servers and no backend — there's nothing to send. • No account, ever. No sign-up, no email, no login. • No ads, no trackers, no analytics, no third-party SDKs. • iCloud sync is off by default and opt-in; it goes only to your own private iCloud. • Apple Health is write-only — Plumb can log a Mindful Minutes session and never reads your health data. SIMPLE, TIME-METERED PRICING Time is the only free meter — no feature walls. Free, forever: one check-in a day across both modes, up to five minutes, with the full nudge experience, the pain log, your two-week Insights window, and the whole Learn library. Plumb+ unlocks unlimited check-ins at any length, the hands-free Live Activity on your Lock Screen and Dynamic Island, Month and Year Insights, and CSV / PDF export. Plumb+ comes three ways: Weekly, Annual (with a 7-day free trial), or a one-time Lifetime unlock. You'll always see the exact price for your region on the subscription screen before anything is charged. Subscriptions are billed through your Apple Account; cancel anytime in App Store → Subscriptions. Trial eligibility is decided by Apple. Made with care, and localised into nine languages. Plumb is a wellness and posture-awareness tool, not a medical device. It does not diagnose, treat, cure, or prevent any condition. If you have a health concern, please speak to a qualified professional. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

HIIT Note

Features
Read full description

20秒動いて、10秒休む。 HIIT Noteなら、アプリを開いてすぐにタバタ式HIITを始められます。大きく見やすいタイマーと音声案内で、運動中に何度も画面を確認する必要はありません。 体重、週間HIIT目標、ジョギングや筋力トレーニングなどの運動記録も、ひとつのアプリですっきり管理できます。食事や筋トレの細かな数値まで入力せず、必要な記録だけを無理なく続けたい方に向けたアプリです。 無料で使える機能 ・ワンタップで始められるHIITタイマー ・ワーク、レスト、回数、準備時間の調整 ・大きく見やすいワーク/レスト表示 ・音と音声によるタイミング案内 ・体重と目標体重の記録 ・週間HIIT目標と今週の進捗 ・ジョギング、筋力トレーニング、ウォーキングなどの運動記録 ・7日/1か月の体重グラフ ・広告なし HIIT Note Premium ・種目、時間、セットを組み合わせたMy HIITの保存 ・よく行う運動をすばやく記録するMy Workout ・すべての運動履歴 ・長期的な体重と運動の進捗 基本のHIITタイマー、体重記録、週間目標、手入力の運動記録は、Premiumに登録しなくても利用できます。 毎日完璧に続けなくても大丈夫です。HIIT Noteは、運動を再開したい日に自然に戻れる、静かで使いやすい記録環境を目指しています。 本アプリは医療機器ではなく、診断、治療、医学的助言を提供するものではありません。体調に不安がある場合は、運動を始める前に医療専門家へご相談ください。 利用規約(Apple標準使用許諾契約): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Plumb4 screens
HIIT Note4 screens

Verdict

The call

The clearest difference is update cadence: Plumb at every 10 days against HIIT Note's every 2 months. On price, ads, in-app purchases 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. Plumb sells 3 in-app purchases, starting at $3.99 per 7 days and HIIT Note sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Plumb ships an update every 10 days, HIIT Note every 2 months. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 5 level
Plumb versus HIIT Note: the parameters behind the verdict, then further details
ParameterPlumbHIIT Note
PriceFreeFree
Update frequencyEvery 10 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size7 MB6 MB
Age rating4+4+
DeveloperMOHAMMAD ALJARADHiroki Okazaki

In-app purchases

3 purchases

Plumb

Subscriptions2
  • Plumb+ Weekly$3.997 Days
  • Plumb+ Annual7 Days trial$39.991 Year
One-time1
  • Plumb+ Lifetime$49.99
2 purchases

HIIT Note

Subscriptions2
  • HIIT Note Premium Monthly7 Days trial$0.991 Month
  • HIIT Note Premium Yearly$11.991 Year

Questions

Is Plumb free?
Plumb is free to download, with in-app purchases available.
Is HIIT Note free?
HIIT Note is free to download, with in-app purchases available.
Do Plumb or HIIT Note have ads?
Neither Plumb nor HIIT Note shows ads.
Which is updated more often, Plumb or HIIT Note?
Plumb ships an update every 10 days, and HIIT Note every 2 months. Most recently, Plumb was updated on November 10, 2026 and HIIT Note on October 31, 2026.

Other comparisons