# 셀로 vs mo.Days

The clearest difference is price: 셀로 at Free against mo.Days's $1.99. 셀로 also leads on iOS requirement (15.6 vs 26.0). mo.Days's advantage is update cadence (every 3 days vs monthly). On ads, in-app purchases and device support there is nothing between them.

셀로 is free to download; mo.Days costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

셀로 ships an update monthly, mo.Days every 3 days. The most recent releases landed on November 7, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | 셀로 | mo.Days |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Size | 41 MB | 22 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Medialog Corp.](https://appshunter.io/developer/536510058) | [MoPlanet Inc.](https://appshunter.io/developer/941511956) |

## What reviewers say

### 셀로

[App page](https://appshunter.io/ios/app/id6444819958)

**Features:** Vision Pro support

**In-app purchases:** none


### mo.Days

[App page](https://appshunter.io/ios/app/modays/id6817686720)

**In-app purchases:** none


## Frequently asked questions

### Is 셀로 free?

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

### Is mo.Days free?

mo.Days costs $1.99, with no in-app purchases.

### Do 셀로 or mo.Days have ads?

Neither 셀로 nor mo.Days shows ads.

### Which is updated more often, 셀로 or mo.Days?

셀로 ships an update monthly, and mo.Days every 3 days. Most recently, 셀로 was updated on November 7, 2026 and mo.Days on November 10, 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.*