# 131 App vs Duvimo

The clearest difference is update cadence: 131 App at every 6 days against Duvimo's every 7 months. 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.

131 App ships an update every 6 days, Duvimo every 7 months. The most recent releases landed on October 16, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 131 App | Duvimo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 7 months |
| Size | 25 MB | 25 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Dot 1 Technologies VBA](https://appshunter.io/developer/1085642646) | [磊华 曹](https://appshunter.io/developer/1776967974) |

## What reviewers say

### 131 App

[App page](https://appshunter.io/ios/app/131-app/id1513503676)

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

**In-app purchases:** none


### Duvimo

[App page](https://appshunter.io/ios/app/duvimo/id6747253586)

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

**In-app purchases:** none


## Frequently asked questions

### Is 131 App free?

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

### Is Duvimo free?

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

### Do 131 App or Duvimo have ads?

Neither 131 App nor Duvimo shows ads.

### Which is updated more often, 131 App or Duvimo?

131 App ships an update every 6 days, and Duvimo every 7 months. Most recently, 131 App was updated on October 16, 2026 and Duvimo on October 4, 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.*