# 凯力朗智能 vs How Long Left

The clearest difference is in-app purchases: 凯力朗智能 at none against How Long Left's 4. 凯力朗智能 also leads on iOS requirement (8.0 vs 12.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. How Long Left sells 4 one-off in-app purchases. 凯力朗智能 asks for nothing beyond the download.

凯力朗智能 ships an update every 5 months, How Long Left every 4 months. The most recent releases landed on September 10, 2026 and July 13, 2026 respectively.

## The numbers

| Metric | 凯力朗智能 | How Long Left |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.8 (39 ratings)](https://appshunter.io/ios/app/how-long-left/id1450603293/reviews)** |
| Number of ratings | — | **39** |
| Positive reviews | — | 58.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | — | Free with in-app purchases |
| Size | 49 MB | 27 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Wenzhou Yunjia Network Technology Co., Ltd.](https://appshunter.io/developer/1448073059) | [Ryan Kontos](https://appshunter.io/developer/1388832965) |

## What reviewers say

### 凯力朗智能

[App page](https://appshunter.io/ios/app/id1448073060)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is 凯力朗智能 free?

凯力朗智能 is free to download, with no in-app purchases.

### Is How Long Left free?

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

### Do 凯力朗智能 or How Long Left have ads?

Neither 凯力朗智能 nor How Long Left shows ads.

### Which is updated more often, 凯力朗智能 or How Long Left?

凯力朗智能 ships an update every 5 months, and How Long Left every 4 months. Most recently, 凯力朗智能 was updated on September 10, 2026 and How Long Left on July 13, 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.*