# Event Days Timer vs ShiftFlow

The clearest difference is review sentiment: Event Days Timer at 100% against ShiftFlow's 50%. ShiftFlow's advantage is in-app purchases (none vs 1) and iOS requirement (17.0 vs 26.0). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Event Days Timer sells 1 one-off in-app purchase. ShiftFlow asks for nothing beyond the download.

Event Days Timer ships an update every 5 days, ShiftFlow weekly. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Event Days Timer | ShiftFlow |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | Paid | Paid |
| Size | 6 MB | 3 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Wujie Yibang (fuzhou) Software Technology Co., Ltd](https://appshunter.io/developer/1895443936) | [PengPeng Li](https://appshunter.io/developer/679477224) |

## What reviewers say

### Event Days Timer

[App page](https://appshunter.io/ios/app/event-days-timer-countdown/id6790069435)

Track time elapsed and remaining for important dates like anniversaries, exams, and deadlines. Organize events into past, future, or recurring lists with customizable display units and system alarms. Sync data across devices and personalize the look with various themes and widgets.

**Highlights:** Elapsed, Countdown, and Recurring event lists, Customizable display units (year, month, day, hour, minute, second), System-level alarms with default ringtone, Home screen widgets and lock-screen layouts, Optional iCloud sync for data, Gregorian and lunar calendar support, Archiving of past events

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | one-time |


### ShiftFlow

[App page](https://appshunter.io/ios/app/shiftflow-rotation-calendar/id6818828064)

This offline calendar helps you plan repeating work shifts and visualize your workdays, nights, and days off. Customize rotations, set reminders, and share your schedule. It also provides statistics on your shifts and work hours.

**Highlights:** Build custom shift rotations, Handle date changes and add notes, Set local shift reminders, Share schedule images, View shift statistics, Home and Lock Screen widgets, Offline functionality

**In-app purchases:** none


## Frequently asked questions

### Is Event Days Timer free?

Event Days Timer is free to download, with in-app purchases available.

### Is ShiftFlow free?

ShiftFlow is free to download, with no in-app purchases.

### Do Event Days Timer or ShiftFlow have ads?

Neither Event Days Timer nor ShiftFlow shows ads.

### Which is updated more often, Event Days Timer or ShiftFlow?

Event Days Timer ships an update every 5 days, and ShiftFlow weekly. Most recently, Event Days Timer was updated on October 24, 2026 and ShiftFlow on October 26, 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.*