Flexitime vs ShiftZen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flexitime
Manage your work shifts with a simple and elegant calendar. Easily set your start date, customize shift patterns, and track vacations or changes. The app visually highlights your workdays for quick understanding.
- Custom shift pattern setup
- Vacation and change tracking
- Automatic workday highlighting
- Widget for quick viewing
- Simple and elegant calendar interface
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Flexitime is a free work shift schedule calendar. This app has a simple and elegant calendar that you can use to show your work shift pattern. Flexitime offers you easily set start date and custom shift pattern. You can setup and switch directly in calender between all your work shifts. In case of vacation or any changes in your usual work shift, we have possibility to setup these changes. The app will automatically highlight all corresponding days of your work week based on all settings you choose, so you can see which day you are working or not. Setup widget to quickly viewing of the nearest two weeks of current month. Calendar does not sync with Google calendars, all it does is shows you work shifts pattern in a nice way.
ShiftZen
This app helps individuals with irregular work schedules or freelance jobs accurately track their earnings. It calculates hourly wages, overtime, and unpaid breaks, providing real-time insights into income and offering detailed reports.
- Track hourly earnings and overtime
- Calculate unpaid breaks
- Organize shifts with color-coding
- Export payroll reports in CSV
- View shift and hours charts
- Sync with Apple Calendar
- Password lock with biometrics
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EARN EVERY DIME YOU'RE OWED ShiftZen is an easy-to-use shift planning calendar that accurately tracks your wages by adding up hourly earnings, overtime, and unpaid breaks. It's perfect for anyone with irregular shifts or freelance work. Watch your earnings grow in real time with the live-view feature! EASILY TRACK YOUR WAGES • Create an unlimited number of jobs and shifts for free • Add up hours worked and pay earned with nano-accuracy • Visually organize shifts using intuitive color-coding • Calculate overtime wages and unpaid breaks • Works as both a shift and hourly wage calendar REPORTS AND TRACKING • Export your payroll report in CSV format • View charts of hours and shifts worked ADDITIONAL FEATURES • View your monthly schedule with a handy Today widget • Sync with Apple's built-in Calendar • Password lock with Touch ID and Face ID • Add an unlimited number of quick memos • Automatic backup • Stunning user interface
Screenshots
Verdict
The clearest difference is ads: Flexitime at none against ShiftZen's shown. Flexitime also leads on update cadence (monthly vs every 12 months) and review sentiment (68% vs 59%). ShiftZen's advantage is rating (3.9 vs 3.5) and ratings volume (18 vs 6). On price, in-app purchases, monetization model 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. Flexitime sells 3 one-off in-app purchases and ShiftZen sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
ShiftZen holds the better App Store score, 3.9 against 3.5. Both are backed by a comparable volume of ratings — 6 and 18 respectively. Written reviews complicate that: 68% of Flexitime's written reviews are positive against 59% of ShiftZen's, so the app with the better star average is not the one people write more warmly about.
Flexitime ships an update monthly, ShiftZen every 12 months. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.
| Parameter | Flexitime | ShiftZen |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (6 ratings) | 3.9 (18 ratings) — better |
| Positive reviews | 67.6% of reviews — better | 59.4% of reviews |
| Number of ratings | 6 | 18 — better |
| Update frequency | Monthly — better | Every 12 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 89 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Dzmitry Sharkou | Bohee Sim |
Customer experience
Flexitime
ShiftZen
Bugs and requests
Flexitime
Not enough reviews yet to summarise bugs or requests.
ShiftZen
Reported bugs
13 issues- App keeps crashing after update
- App stops working, keeps quitting
- App closes immediately upon opening
- App opens to a specific date (10/21) and requires scrolling
- Duplicate dates in April
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- Missing days in March and April
- Dates and weeks not matching actual calendar
- Wrong start date and week of April
- Calendar shows titles instead of times
- Two dates for April 3rd
- Missing 27th March, messing up the rest of the year
- Calendar dates are wrong
- Date not coinciding with the day
Requested features
4 requests- Update for ISO18
- Add ability to display non-shift appointments
- Add ability to display holidays
- More color options
In-app purchases
Flexitime
- Vacations and Changed Shifts$0.99
- Several work shifts$0.99
- Shift Colors$0.99
ShiftZen
- ShiftZen Pro$2.99
- ShiftZen Pro$4.99
