NeuroMetric vs OneTap Safe
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NeuroMetric
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NeuroMetric – Reaction Time Training NeuroMetric is a simple and focused app designed to train your reaction time, concentration, and mental focus. Each training session lasts 180 seconds. During the session, the screen will change to green at random intervals. Your task is to tap the screen as quickly as possible when the signal appears. The challenge is not only speed, but maintaining full concentration for the entire session. This app is ideal for users who want to improve: - Reaction speed - Focus and sustained attention - Mental alertness under time pressure How it works - Press the (+) button to start a new training session - Tap to begin when the start screen appears - React instantly when the screen turns green - Stay focused for the full 180 seconds - Open Sessions to review recent trainings and track consistency NeuroMetrics keeps the experience minimal and distraction-free, allowing you to focus entirely on training your mind and reactions. Train regularly, stay sharp, and improve your response time with NeuroMetrics.
OneTap Safe
This app provides daily check-ins for seniors using lock screen Live Activities. It offers peace of mind to caregivers by automatically alerting them if a check-in is missed, without requiring GPS tracking.
- Lock screen Live Activity check-ins
- No unlocking required
- Automatic family alerts for missed check-ins
- Simple interface for seniors
- Daily reminders
- Check-in history tracking
- Privacy-focused with no GPS tracking
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LOCK SCREEN CHECK-IN FOR ELDERLY LOVED ONES OneTapSafe helps families stay connected with aging parents or vulnerable loved ones through simple daily check-ins using iOS Live Activity on the lock screen. No unlocking required. No GPS tracking. Just peace of mind. DESIGNED FOR SENIORS & CAREGIVERS: - Elderly parents living alone - Adult children caring for aging relatives - Seniors who want to reassure family - Caregivers monitoring wellness - Families separated by distance THE LIVE ACTIVITY ADVANTAGE: Unlike traditional apps, OneTapSafe uses iOS Live Activity technology to put the check-in button directly on the lock screen. Seniors don't need to remember Face ID, passcodes, or navigate through apps - just tap the button that's always visible. HOW IT WORKS: 1. Senior receives daily reminder at their preferred time 2. Live Activity appears on lock screen with "I'm Safe" button 3. Single tap confirms they're okay 4. If check-in is missed, family receives automatic alert KEY FEATURES FOR ELDERLY USERS: LOCK SCREEN LIVE ACTIVITY Check in without unlocking phone. Perfect for seniors who forget passcodes or struggle with Face ID. ALWAYS VISIBLE Button stays on lock screen and Dynamic Island. Can't get lost in app folders. SIMPLE INTERFACE Large buttons, clear text, no confusing menus. Designed specifically for older adults. DAILY REMINDERS Set preferred check-in time. Gentle notifications ensure routine wellness checks. FAMILY ALERTS Trusted contacts notified automatically if check-in is missed. Configurable grace period. CHECK-IN HISTORY Track consistency over 7, 14, or 30 days. Celebrate streaks. PRIVACY FIRST No GPS tracking. No location monitoring. All data stored locally on device. MULTIPLE CONTACTS Add emergency contacts who receive SMS or email alerts. CUSTOMIZABLE Set check-in schedule, grace periods, and notification preferences. WHY FAMILIES CHOOSE OneTapSafe: PEACE OF MIND FOR CAREGIVERS Know your aging parent is okay each day without calling to check. Automatic alerts only when needed. INDEPENDENCE FOR SENIORS Maintain autonomy while giving family reassurance. No constant monitoring or tracking. EASIER THAN PHONE CALLS Seniors just tap once. No dialing, no conversations if they're not feeling chatty. PERFECT FOR MEMORY ISSUES Lock screen button is always visible. Hard to forget when it's staring at you. TECHNICAL INNOVATION SERVING SENIORS: We leverage iOS Live Activity - the same technology that shows sports scores and delivery tracking on your lock screen - to make wellness checks accessible to elderly users who struggle with modern technology. REQUIREMENTS: - iOS 16.1 or later (Live Activity support) - iPhone with iOS Live Activity capability - Notification permissions for daily reminders FREE TO USE. NO SUBSCRIPTIONS. NO ADS. Download OneTapSafe today and give your family peace of mind through simple, dignified daily check-ins. NOTE: This app is not a medical device and should not replace emergency services. Always call 911 for emergencies. OneTapSafe Premium unlocks unlimited emergency contacts and full alert history. Start with a 7-day free trial. Terms of Use: https://imentos.github.io/OneTapSafe/terms-of-use
Screenshots
Verdict
The clearest difference is in-app purchases: NeuroMetric at none against OneTap Safe's 3. NeuroMetric also leads on update cadence (weekly vs every 3 weeks) and iOS requirement (15.6 vs 26.2). On price, 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
Both are free to download. OneTap Safe sells 3 in-app purchases, starting at $3.99 per month. NeuroMetric asks for nothing beyond the download.
NeuroMetric ships an update weekly, OneTap Safe every 3 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | NeuroMetric | OneTap Safe |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 26.2 |
| Further details — not scored | ||
| Size | 37 MB | 4 MB |
| Age rating | 12+ | 4+ |
| Developer | ThatsMobile GmbH | Chin Jui Kuo |
In-app purchases
NeuroMetric
No in-app purchases
OneTap Safe
- OneTap Safe Premium Monthly$3.991 Month
- OneTap Safe Premium Annually7 Days trial$19.991 Year
- OneTapSafe Premium Lifetime$39.99









