Optimal AI vs Screen Time Control
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Optimal AI
Get direct, evidence-based answers to your health and lifestyle questions. This AI analyzes your queries about food, sleep, fitness, and more, providing clear verdicts and actionable advice based on research.
- Evidence-based health verdicts
- Plain English queries
- Personalized optimal choice library
- Challenge AI verdicts
- Powered by advanced AI models
- Food, sleep, fitness, and supplement advice
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Every day you make dozens of decisions that shape your health, your energy, and how long you live well. Most of the time, you're guessing. Optimal AI changes that. Ask any question about food, sleep, fitness, supplements, or lifestyle and get a direct verdict in seconds: OPTIMAL or NOT OPTIMAL. No hedging. No vague advice. Just a straight answer, the reasoning behind it, and what to do next. WHAT CAN YOU ASK? Food and nutrition, sleep and recovery, fitness and movement, supplements, home environment, personal care. If it affects your health, ask it. HOW IT WORKS Ask in plain English. Optimal AI analyzes your question against peer-reviewed research and established health guidelines, then delivers a verdict with a full explanation and evidence-based reference. Not trends. Not opinions. Evidence. BUILD YOUR STACK Save the verdicts that matter to you. Build a personal library of optimal choices, your own reference guide to decisions you have already figured out. CHALLENGE ANY VERDICT Disagree with an answer? Push back. Optimal AI will defend its position with stronger evidence or update its verdict. The truth always wins. POWERED BY LEADING AI Built on Claude, one of the world's most advanced AI models, trained to reason carefully and give you straight answers without the noise. FREE TO START 15 verdicts per month, free. Upgrade to Optimal AI Pro for unlimited verdicts and unlimited challenges. Start living optimally. Terms of Use: https://willowy-beijinho-1bc235.netlify.app/terms.html
Screen Time Control
This app helps you build healthy habits by locking distracting apps until your goals are met. It uses photo proof for habit verification and offers a personalized visual world to motivate your progress. Rest days are accommodated without breaking your momentum.
- App blocking until habits are completed
- Photo proof for habit verification
- Customizable habit enforcement
- Progress tracking that forgives missed days
- AI-generated personalized visual worlds
- On-device privacy for all data
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LockLive is an app blocker and habit tracker in one. Choose the apps that distract you, and they stay locked until the habits that build your life are done. You already know the life you want: calmer mornings, a body you've cared for, real time with the people you love, a craft you actually returned to. And you know exactly where that time goes instead. The scroll. The game that was going to be ten minutes. The limits you set and ignore. The app you delete and download again by Thursday. Willpower isn't the plan anymore. LockLive is. YOUR APPS WAIT UNTIL YOUR HABITS ARE DONE Choose the apps that take your time - the feeds, the games, whichever ones pull you. Each day they stay locked until the habits you've gated are finished - then they open. No countdown to bargain with, no limit to dismiss. Apple's Screen Time technology does the blocking, entirely on your device. THE HABIT APP THAT CAN'T BE LIED TO Anyone can tap Done and keep scrolling. When it matters, LockLive asks for proof: snap a photo of the made bed, the shoes on your feet, the page you wrote. Your promise to yourself, protected from your own five seconds of weakness. YOU CHOOSE THE TEETH Every habit gets exactly the enforcement you give it: just track it, prove it with a photo, or lock apps behind it. Every lock is set by you and only you. Lock & Live is your own hand on the door - never a nanny. PROGRESS THAT FORGIVES YOU Firm about today, kind about yesterday. There are no streaks to break: a missed day is a dip in your score, not a reset to zero. The gate holds today's line; it never punishes you for yesterday's. BUILT FOR REAL LIFE Rest days are part of the plan, not a failure of it. Rest a habit for sickness, travel, or a hard week, and its progress holds while Lock & Live picks back up with you. There is always an honest way through a hard day - that's what makes the locks livable. A WORLD PAINTED FOR WHAT YOU'RE BUILDING Describe what you're working toward in a few words, and Lock & Live's AI paints you a space for it: a beautiful, personal world made just for you. Your habits live inside that space, building the life it pictures. It's a glimpse of who you're becoming, not another gray checklist. PAINTING CREDITS & PURCHASES Painting your space is powered by AI, so it runs on credits. Your subscription includes 30 painting credits each month, and creating or changing a painting uses one. If you want to keep adjusting beyond your monthly amount, you can buy an optional one-time pack of 50 extra credits ($4.99) that never expire. Everything else - all your habits, locks, history, and core features - is included with your subscription and never uses credits. PRIVATE BY DESIGN Everything lives on your device. No account, no cloud, no one watching over your shoulder. Even proof photos never leave your phone. The reward was never the phone. It's the mornings, the body, the work, the people - the life your habits build while the feed waits its turn. Your apps can wait. Your life can't. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.locknlive.com/privacy
Screenshots
Verdict
The clearest difference is iOS requirement: Optimal AI at 15.1 against Screen Time Control's 18.0. On price, rating, ratings volume and ads 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
Both are free to download. Optimal AI sells 2 in-app purchases, starting at $4.99 per month and Screen Time Control sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Optimal AI against 5.0 for Screen Time Control. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
| Parameter | Optimal AI | Screen Time Control |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | — | Every 2 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 35 MB | 116 MB |
| Age rating | 12+ | 4+ |
| Developer | Timothy Dobies | John Engleman |
Customer experience
Optimal AI
Screen Time Control
In-app purchases
Optimal AI
- Optimal Pro Monthly$4.991 Month
- Optimal Pro Annual$29.991 Year
Screen Time Control
- Sona Habits Pro (Monthly)$9.991 Month
- Sona Habits Pro (Yearly)7 Days trial$49.991 Year
- 50 Painting Credits$4.99








