LunaLock vs Loud Alarm
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
LunaLock
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LunaLock is the period tracker that actually keeps your data private. No cloud sync. No accounts. No data collection. Your period data stays on your device, period. Unlike other period apps that upload your most personal health data to remote servers, LunaLock was built from the ground up with one principle: your data never leaves your phone. FREE FEATURES: - Log period start and end dates with haptic feedback - Smart cycle prediction with confidence ranges (not just averages) - Track 6 common symptoms: cramps, bloating, headache, fatigue, acne, mood swings - Log your daily mood with 6 mood options - Record flow level from spotting to heavy - Calendar view with period and prediction markers - FaceID and PIN lock with emergency shake-to-lock - Auto-lock timer for extra security - Period reminders with customizable advance notice - Onboarding privacy promise - Delete all data anytime - No ads, no accounts, no tracking PRO FEATURES (one-time $3.99 purchase): - Trend charts for cycle length, symptom frequency, and mood patterns - Data export as PDF for doctor visits or JSON for other apps - Home screen widget with countdown and cycle day - 5 beautiful color themes (Luna, Rose, Ocean, Forest, Sunset) - HealthKit write-only integration (optional) - Monthly and annual cycle reports - Emergency shake-to-lock - All future updates included WHY LUNALOCK? Other period apps like Flo and Clue require accounts, collect your data, and use subscriptions. LunaLock is different: - $3.99 once, not $4.99/month forever - Zero data collection - we literally cannot see your data - FaceID lock means even someone borrowing your phone cannot see your period info - Emergency shake-to-lock for when you need instant privacy LunaLock. Your period. Your phone. Nobody else's.
Loud Alarm
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Tired of sleeping through your alarm? Loud Alarm Clock is built for heavy sleepers who need more than a gentle chime to wake up. WAKE-UP MISSIONS Snoozing isn't an option until you solve it. Choose from math problems, shake-to-wake, photo tasks, QR scans, and memory puzzles โ your brain has to switch on before the alarm will turn off. LOUD, PERSISTENT ALARMS Pick from a huge library of alarm tones and ringtones, from gentle wake-ups to seriously loud sounds for the deepest sleepers. Adjustable volume ramp-up and vibration patterns help you wake up the way that works for you. SLEEP TRACKING & REPORTS Record tossing, turning, and snoring sounds overnight. Get a wake-up report with your total sleep duration, perfect wake-up streaks, and habit trends โ so you can actually see your sleep improve over time. SLEEP SOUNDS Fall asleep faster with a library of relaxing sleep sounds and a bedtime reminder to help you build a consistent sleep routine. MORNING ROUTINE Start your day with local weather, a daily quote, horoscope, and a quick morning check-in โ all in one place, right after your alarm goes off. CUSTOM ALARM WALLPAPERS Personalize your wake-up screen with trending wallpapers and themes, from space scenes to bold typography. SUBSCRIPTIONS Pro membership is available as a monthly or yearly auto-renewable subscription, or as a one-time lifetime purchase. Your subscription will automatically renew unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings at any time. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ PLEASE NOTE For the most reliable wake-up experience, allow notifications and keep the app installed with background activity enabled. Like all iOS alarm apps, behavior can vary slightly depending on your device settings โ we recommend a quick test alarm after setup. Download Loud Alarm Clock today and start waking up on time, every time.
Screenshots
Verdict
The clearest difference is iOS requirement: Loud Alarm at 13.0 against LunaLock's 17. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. LunaLock sells 1 one-off in-app purchase and Loud Alarm sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | LunaLock | Loud Alarm |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod โ better |
| Requires iOS | 17 | 13.0 โ better |
| Further details โ not scored | ||
| Size | 3 MB | 103 MB |
| Age rating | 9+ | 4+ |
| Developer | ่ดบ ๅจ | GEETHA MS |
In-app purchases
LunaLock
- LunaLock Pro$3.99
Loud Alarm
- Premium Monthly7 Days trial$4.991 Month
- Premium Yearly7 Days trial$29.991 Year
- Premium Lifetime$49.99








