Comparison

SafeCycle Pro vs Crew Duty Time

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

Head to head
About

SafeCycle Pro

Features
Read full description

SAFE CYCLE - THE PERIOD TRACKER THAT CAN'T SEE YOUR DATA SafeCycle is built from the ground up with one principle: your data never leaves your phone. Track your menstrual cycle with complete privacy and security. ZERO NETWORK ACCESS SafeCycle has no internet permissions. Your data physically cannot be sent anywhere - not to us, not to advertisers, not to anyone. This isn't a privacy promise. It's a technical guarantee. AES-256-GCM ENCRYPTION Your most sensitive data is encrypted with the same standard used by banks and governments. Even if someone gains physical access to your device, your health data stays protected. FACE ID / TOUCH ID Unlock SafeCycle with biometric authentication. Quick access for you, impenetrable barrier for everyone else. DUAL PIN SYSTEM Set a real PIN for your actual data and a stealth PIN that opens a fake calculator. When someone demands to see your phone, enter the stealth PIN - they'll see a working calculator, not your health tracker. STEALTH MODE CALCULATOR The calculator disguise isn't just cosmetic - it's a fully functional calculator. No one will ever know it's hiding your period tracker. SMART CYCLE PREDICTIONS Track your period and get intelligent predictions based on your unique cycle patterns. The more you log, the smarter it gets. DAILY SYMPTOM LOGGING Track mood, pain, energy, sleep, digestion, skin, and flow - all encrypted locally on your device. BEAUTIFUL CHARTS Visualize your cycle length trends and symptom patterns over time with native Swift Charts. DISGUISED NOTIFICATIONS Reminders titled "Daily Reminder" - never mentioning periods or health. Your lock screen stays private. ENCRYPTED BACKUP Export your data as an encrypted file for safekeeping. You control where it goes. WHY SAFECYCLE? - No cloud storage - ever - No account required - No data sharing - No third-party analytics - No ads - No subscriptions - one-time purchase of $7.99 - Built with Swift, SwiftUI, and CryptoKit FAIR PRICING SafeCycle is a one-time purchase of $7.99. No recurring charges. No hidden paywalls. No data harvesting. Pay once, own forever. Your body. Your data. Your control.

About

Crew Duty Time

Features
Read full description

Crew Duty Time is a crew duty, rest, and flight-time reference calculator built for flight crew who need a fast short-term planning tool before and during duty. Enter a route, review planned sector times, compare company-style duty limits, track rolling flight time, and keep key duty milestones visible on iPhone and Apple Watch. Key features: • Route-based duty planning with STD, STA, planned flight time, ACT OUT, and ACT IN fields • Configurable company-style settings for report time, taxi time, maximum flight time, maximum flight duty time, LBO, rest, and related limits • Live Activity and local notifications for REPORT, STD, DLY, and LBO stages before ACT OUT is entered • Apple Watch companion view for quick leg review and time entry • In-flight rest planner for multi-crew and double-crew duty planning • Rolling 24-hour flight-time reference • Cabin limits shown as reference information • Local profile import/export for reusable company settings • Offline-oriented workflow with local calculations and no account requirement Crew Duty Time is designed as a planning and reference tool. It is not an official regulatory system, company-approved dispatch system, or legal compliance guarantee. Flight crew must confirm final duty, rest, and flight-time legality against the applicable company manuals, authority regulations, operational control requirements, and current operational conditions.

Screenshots

SafeCycle Pro4 screens
Crew Duty Time4 screens

Verdict

The call

The clearest difference is price: SafeCycle Pro at Free against Crew Duty Time's $3.99. SafeCycle Pro also leads on iOS requirement (17.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

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

SafeCycle Pro is free to download; Crew Duty Time costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences Ā· 4 level
SafeCycle Pro versus Crew Duty Time: the parameters behind the verdict, then further details
ParameterSafeCycle ProCrew Duty Time
PriceFree — better$3.99
Update frequency—Monthly
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS17.0 — better26.0
Further details — not scored
Size3 MB21 MB
Age rating9+4+
Developer蓺 周CHING-MING HSU

In-app purchases

None

SafeCycle Pro

No in-app purchases

None

Crew Duty Time

No in-app purchases

Questions

Is SafeCycle Pro free?
SafeCycle Pro is free to download, with no in-app purchases.
Is Crew Duty Time free?
Crew Duty Time costs $3.99, with no in-app purchases.
Do SafeCycle Pro or Crew Duty Time have ads?
Neither SafeCycle Pro nor Crew Duty Time shows ads.

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