Time vs RosterSync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Time
This app simplifies time calculations for personal flight logs. It exclusively handles addition and subtraction of hours and minutes, automatically interpreting the last two digits of any input as minutes.
- Time addition
- Time subtraction
- Automatic minute interpretation
- Personal flight log focus
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A simple time calculator (hours + minutes) designed specifically for personal flight log calculations — it only performs addition and subtraction. The last two digits of any entered number are automatically treated as minutes.
RosterSync
This utility app helps airline crew members manage and share their flight schedules. It offers automated syncing, secure storage of login credentials, and real-time schedule comparison with colleagues. Users can also export their schedules to popular calendar applications.
- Automated schedule sync
- Secure login credential storage
- Real-time schedule sharing
- Schedule comparison with colleagues
- Calendar export (iCloud & Google)
- Privacy settings for sharing
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A New Standard for Your Flight Life, RosterSync! RosterSync is a smart utility designed for busy airline crew members to easily manage and securely share their complex flight rosters. With a sleek deep-sea theme and robust security features, we make your aviation life more comfortable and organized. [Key Features] 1. Smart Automated Schedule Sync Log in just once to your airline portal, and RosterSync will automatically parse your complex flight schedule and display it beautifully on the in-app calendar. Easily check your layovers, off days, and flight numbers at a glance. 2. Ironclad Security with Apple Keychain Your valuable airline portal login credentials (Employee ID and Password) are securely encrypted and stored ONLY within your iPhone's native 'Keychain'. They are NEVER transmitted to any external server, ensuring your absolute privacy. 3. Real-Time Schedule Sharing & Comparison Add colleagues via social login (Apple, Google) and cross-compare your schedules in real-time. Instantly see "who is flying where" and maintain your privacy with detailed search permission settings (e.g., Public, Same Airline Only, Private). 4. Calendar Export (iCloud & Google) Seamlessly export your RosterSync schedule to your native iOS Calendar or Google Calendar. For iCloud accounts, the app can automatically create a dedicated orange 'RosterSync' calendar to keep things perfectly organized! Start a smarter, more enjoyable flight life with RosterSync today!
Screenshots
Verdict
The clearest difference is rating: RosterSync at 5.0 against Time's 3.0. RosterSync also leads on update cadence (every 2 days vs every 6 days). Time's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume, device support and iOS requirement 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. RosterSync sells 1 one-off in-app purchase. Time asks for nothing beyond the download.
RosterSync holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews complicate that: 100% of Time's written reviews are positive against 80% of RosterSync's, so the app with the better star average is not the one people write more warmly about.
Time ships an update every 6 days, RosterSync every 2 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.
| Parameter | Time | RosterSync |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 80.0% of reviews |
| Number of ratings | 2 | 3 — better |
| Update frequency | Every 6 days | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Requires iOS | 17.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | Kazuyuki Saito | AeroSync Studio |
Customer experience
Time
RosterSync
In-app purchases
Time
No in-app purchases
RosterSync
- Pro 버전 업그레이드$2.99







