# How Long Left vs Flexi Calendar

The clearest difference is rating: Flexi Calendar at 5.0 against How Long Left's 3.8. Flexi Calendar also leads on in-app purchases (none vs 4) and update cadence (daily vs every 4 months). How Long Left's advantage is ratings volume (39 vs 5) and device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. How Long Left sells 4 one-off in-app purchases. Flexi Calendar asks for nothing beyond the download.

Flexi Calendar holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: How Long Left has 39 ratings behind it against 5, so its average is the more settled of the two.

How Long Left ships an update every 4 months, Flexi Calendar daily. The most recent releases landed on July 13, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | How Long Left | Flexi Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (39 ratings)](https://appshunter.io/ios/app/how-long-left/id1450603293/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/flexi-calendar/id6475564896/reviews)** |
| Number of ratings | **39** | 5 |
| Positive reviews | 58.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 27 MB | 21 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ryan Kontos](https://appshunter.io/developer/1388832965) | [Richard Lavey](https://appshunter.io/developer/1724298642) |

## What reviewers say

### How Long Left

[App page](https://appshunter.io/ios/app/how-long-left/id1450603293)

This app helps you visualize the time remaining for your calendar events. It offers a Today Widget, Siri integration, and an Apple Watch app for convenient access. Receive notifications for upcoming events and customize your watch face with countdown complications.

**Highlights:** Countdown calendar events, Today Widget integration, Siri integration, Apple Watch app, Time remaining notifications, Apple Watch complications

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| How Long Left Widget | $1.99 | one-time |
| Premium Watch Complication | $4.99 | one-time |
| Legacy Pro Lifetime | $39.99 | one-time |
| How Long Left Pro (Lifetime) | $49.99 | one-time |


### Flexi Calendar

[App page](https://appshunter.io/ios/app/flexi-calendar/id6475564896)

Manage complex and rotating work schedules with ease. This app is designed for individuals with non-traditional weekly routines, allowing for custom schedule creation and sharing. Sync with your device's calendar and find common availability with friends.

**Highlights:** Customizable rotating schedules, Support for non-traditional workweeks, Schedule comparison with friends, Export to Apple Calendar, Find mutual availability, Ideal for shift workers

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

**In-app purchases:** none


## Frequently asked questions

### Is How Long Left free?

How Long Left is free to download, with in-app purchases available.

### Is Flexi Calendar free?

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

### Which has better reviews, How Long Left or Flexi Calendar?

Flexi Calendar is rated higher. How Long Left averages 3.8 out of 5 from 39 ratings, while Flexi Calendar averages 5.0 from 5 ratings.

### Do How Long Left or Flexi Calendar have ads?

Neither How Long Left nor Flexi Calendar shows ads.

### Which is updated more often, How Long Left or Flexi Calendar?

How Long Left ships an update every 4 months, and Flexi Calendar daily. Most recently, How Long Left was updated on July 13, 2026 and Flexi Calendar on September 9, 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.*