Comparison

Unclench! vs Posture Alert

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

Head to head
About

Unclench!

Features
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Your jaw is clenched right now. Probably your shoulders too. Unclench is a 5-second game that interrupts the tension spiral before it becomes a headache, a bad decision, or a sleepless night. It works by making you notice — because awareness alone breaks the loop. The game is simple: when a smart reminder fires, you complete a 3-step reset. Unclench your jaw. Drop your shoulders. One slow breath. That's it. Each reset earns you Relax Points and improves your daily calm score. The longer your streak, the higher your multiplier. But you're not playing alone. A.Iva is your AI rival — she's accumulating points while you sit there tense. She'll taunt you when she's winning and grudgingly respect you when you're not. Every day ends with a duel result: you either beat her calm score or you don't. Tomorrow you get another shot. The first two resets are free. After that, a subscription keeps the game going — and A.Iva keeps competing whether you're subscribed or not. No account required. All data stays on your device. Delete everything anytime from Settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Posture Alert

Features
Read full description

Your AirPods already know when you slouch. Posture Alert just tells you. No camera. No wearable to buy. No sensor to strap on. Posture Alert reads the motion sensors already inside your AirPods, learns how you sit when you sit well, and gives you a gentle nudge the moment you drift out of it. HOW IT WORKS 1. Pop in your AirPods and sit the way you want to sit. 2. Tap Start. That posture becomes your baseline. 3. Slouch for longer than your chosen hold time and you get a nudge — a sound, a notification, or both. WHAT YOU GET • Live posture tracking that runs quietly in the background • Nudges you can tune — how far you can lean, and how long before it speaks up • 20-20-20 eye breaks: every 20 minutes, look 20 feet away for 20 seconds • Lock Screen Live Activity showing your status and elapsed time at a glance • Built-in reminder sounds, or record your own instead of another generic beep • A full history of every session, grouped by day • Progress charts: your posture over time, when you slouch most, how long you last BUILT TO STAY OUT OF THE WAY Everything runs on your device. Your posture data never leaves your iPhone — there is no account to create and nothing to sign in to. Start a session, put the phone down, and get on with your work. REQUIRES AIRPODS Posture Alert needs AirPods (3rd generation or later), AirPods Pro, AirPods Max, or Beats with motion sensors. It cannot measure your posture without them. POSTURE ALERT PRO Your first session is free. Pro unlocks unlimited posture tracking, 20-20-20 eye breaks, custom reminder sounds, and early access to new features. • Monthly — with a 3-day free trial • Yearly — the same, at a lower cost per month • Lifetime — one payment, yours forever Payment is charged to your Apple Account at confirmation of purchase. A subscription renews automatically for the same period unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the current period ends, at the price shown in the app. Manage a subscription or turn off auto-renewal in Settings, then your Apple Account, then Subscriptions. Any unused portion of a free trial is forfeited when you buy a subscription during that trial. A lifetime purchase is a single payment with nothing to renew. Terms of Use: https://posture-alert.vercel.app/terms Privacy Policy: https://posture-alert.vercel.app/privacy

Screenshots

Unclench!4 screens
Posture Alert4 screens

Verdict

The call

Unclench! and Posture Alert are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

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

Both are free to download. Unclench! sells 1 in-app purchase, starting at $3.99 per month and Posture Alert sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Unclench! versus Posture Alert: the parameters behind the verdict, then further details
ParameterUnclench!Posture Alert
PriceFreeFree
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad — betteriPhone
Requires iOS17.016.4 — better
Further details — not scored
Size28 MB65 MB
Age rating4+9+
DeveloperJan-Willem PrgelHuy Vo Van

In-app purchases

1 purchases

Unclench!

Subscriptions1
  • Unclench Pro Monthly$3.991 Month
2 purchases

Posture Alert

Subscriptions1
  • Monthly3 Days trial$2.991 Month
One-time1
  • Lifetime$39.99

Questions

Is Unclench! free?
Unclench! is free to download, with in-app purchases available.
Is Posture Alert free?
Posture Alert is free to download, with in-app purchases available.
Do Unclench! or Posture Alert have ads?
Neither Unclench! nor Posture Alert shows ads.

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