# 앨런 vs SIFT

The clearest difference is update cadence: SIFT at weekly against 앨런's every 3 weeks. 앨런's advantage is iOS requirement (16.4 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

앨런 ships an update every 3 weeks, SIFT weekly. The most recent releases landed on August 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | 앨런 | SIFT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id6448908457/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 59 MB | 25 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [ESTsoft corp.](https://appshunter.io/developer/381659603) | [junggeun bong](https://appshunter.io/developer/6782731591) |

## What reviewers say

### 앨런

[App page](https://appshunter.io/ios/app/id6448908457)

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

**In-app purchases:** none


### SIFT

[App page](https://appshunter.io/ios/app/sift-to-do-list/id6782752844)

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

**In-app purchases:** none


## Frequently asked questions

### Is 앨런 free?

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

### Is SIFT free?

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

### Do 앨런 or SIFT have ads?

Neither 앨런 nor SIFT shows ads.

### Which is updated more often, 앨런 or SIFT?

앨런 ships an update every 3 weeks, and SIFT weekly. Most recently, 앨런 was updated on August 13, 2026 and SIFT on September 29, 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.*