Comparison

FlexR (Shift planner) vs ShiftZen

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

Head to head
About

FlexR (Shift planner)

Manage your work schedule with ease, track worked hours, and calculate your salary. This app offers a clear view of past and future shifts, with options to sync to your external calendar and generate reports.

Highlights
  • Shift scheduling
  • Work hour tracking
  • Salary calculation
  • Calendar sync
  • Work reports
  • Invoice creation
  • Cloud sync
Features
Read full description

FlexR is THE #1 app for people who work in varying shifts, giving you all options you want in an app for keeping track of your work schedule! FlexR shows a clear view of your personal schedule for the coming weeks, but also your schedule of the past. Paired with the ability to sync all of your schedule to your own external icloud (or google) Agenda. FlexR gives you the opportunity to quickly make a report of your worked hours, including your salary. All YOU have to do, is to tell the app when you have to work. The app does the rest! Some great functions; + Creating invoices + iCloud Calendar sync + Easy entering working schedule + One-click report + View your salary in an eyewink + Cloud-sync (to sync with FlexR on other devices) + Shift attachments (picture/documents) + Allowance/expense + multiple salary settings + Widget (also on lockscreen) + Unlimited shifts per day + Repeating any schedule you want + Dark App color theme 100.000+ happy users worldwide. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

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.

Highlights
  • 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
Features
Read full description

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

FlexR (Shift planner)4 screens
ShiftZen4 screens

Verdict

The call

The clearest difference is price: ShiftZen at Free against FlexR (Shift planner)'s $3.99. ShiftZen also leads on ratings volume (18 vs 3). FlexR (Shift planner)'s advantage is rating (5.0 vs 3.9) and ads (none vs shown). On review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

ShiftZen is free to download; FlexR (Shift planner) costs $3.99 up front. FlexR (Shift planner) sells 2 in-app purchases, starting at $3.99 per month and ShiftZen sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

FlexR (Shift planner) holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: ShiftZen has 18 ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 59% and 59% positive.

UpkeepUpdate frequency

FlexR (Shift planner) ships an update fortnightly, ShiftZen every 12 months. The most recent releases landed on September 29, 2026 and September 22, 2026 respectively.

Scorecard5 real differences · 5 level
FlexR (Shift planner) versus ShiftZen: the parameters behind the verdict, then further details
ParameterFlexR (Shift planner)ShiftZen
Price$3.99Free — better
Rating5.0 (3 ratings) — better3.9 (18 ratings)
Positive reviews59.4% of reviews59.4% of reviews
Number of ratings318 — better
Update frequencyFortnightly — betterEvery 12 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.6 — better18.0
Further details — not scored
Size114 MB36 MB
Age rating4+4+
DeveloperGerrit kleyn WinkelBohee Sim

Customer experience

FlexR (Shift planner)

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews69 reviews
Positive59.4%
Neutral15.9%
Negative24.6%

ShiftZen

All ratings18 ratings
Positive66.7%
Neutral11.1%
Negative22.2%
Written reviews64 reviews
Positive59.4%
Neutral15.6%
Negative25.0%

Bugs and requests

FlexR (Shift planner)

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
Show 8 more
  • 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

2 purchases

FlexR (Shift planner)

Subscriptions1
  • FlexR Invoice Subscription$3.991 Month
One-time1
  • FlexR data sharing$1.99
2 purchases

ShiftZen

One-time2
  • ShiftZen Pro$2.99
  • ShiftZen Pro$4.99

Questions

Is FlexR (Shift planner) free?
FlexR (Shift planner) costs $3.99, and also offers in-app purchases.
Is ShiftZen free?
ShiftZen is free to download, with in-app purchases available.
Which has better reviews, FlexR (Shift planner) or ShiftZen?
FlexR (Shift planner) is rated higher. FlexR (Shift planner) averages 5.0 out of 5 from 3 ratings, while ShiftZen averages 3.9 from 18 ratings.
Do FlexR (Shift planner) or ShiftZen have ads?
ShiftZen shows ads; FlexR (Shift planner) does not.
Which is updated more often, FlexR (Shift planner) or ShiftZen?
FlexR (Shift planner) ships an update fortnightly, and ShiftZen every 12 months. Most recently, FlexR (Shift planner) was updated on September 29, 2026 and ShiftZen on September 22, 2026.

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