# FlexR (Shift planner) vs ShiftZen

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.

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.

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.

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.

## The numbers

| Metric | FlexR (Shift planner) | ShiftZen |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/flexr-shift-planner/id924025756/reviews)** | [3.9 (18 ratings)](https://appshunter.io/ios/app/shiftzen-shift-work-calendar/id1511199418/reviews) |
| Number of ratings | 3 | **18** |
| Positive reviews | 59.4% of reviews | 59.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 12 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 114 MB | 36 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gerrit kleyn Winkel](https://appshunter.io/developer/797512757) | [Bohee Sim](https://appshunter.io/developer/1137032844) |

## What reviewers say

### FlexR (Shift planner)

[App page](https://appshunter.io/ios/app/flexr-shift-planner/id924025756)

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:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlexR Invoice Subscription | $3.99 | per month |
| FlexR data sharing | $1.99 | one-time |


### ShiftZen

[App page](https://appshunter.io/ios/app/shiftzen-shift-work-calendar/id1511199418)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ShiftZen Pro | $2.99 | one-time |
| ShiftZen Pro | $4.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 👍 Convenient for tracking shifts
- 👍 Good for calculating salary/pay
- 👍 Clear and organized interface
- 👍 Helpful for managing multiple jobs

**What reviewers complain about**

- 🐛 App crashes frequently
- 🐛 App won't open after updates
- 🐛 Data loss after reinstallation
- 🐛 Dates and days not matching
- 🐛 Missing days in calendar

**Reported bugs**

- 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

**Requested features**

- Update for ISO18
- Add ability to display non-shift appointments
- Add ability to display holidays
- More color options


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*