# MONADOO vs Constant Scale

The clearest difference is update cadence: Constant Scale at every 4 weeks against MONADOO's every 2 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.

MONADOO ships an update every 2 months, Constant Scale every 4 weeks. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | MONADOO | Constant Scale |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Size | 52 MB | 150 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ROOTONIX Co., Ltd.](https://appshunter.io/developer/1652169925) | [Yiwu Chaolan Import & Export Co., Ltd.](https://appshunter.io/developer/1788815884) |

## What reviewers say

### MONADOO

[App page](https://appshunter.io/ios/app/monadoo/id6444080725)

**In-app purchases:** none


### Constant Scale

[App page](https://appshunter.io/ios/app/constant-scale/id6740186656)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MONADOO free?

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

### Is Constant Scale free?

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

### Do MONADOO or Constant Scale have ads?

Neither MONADOO nor Constant Scale shows ads.

### Which is updated more often, MONADOO or Constant Scale?

MONADOO ships an update every 2 months, and Constant Scale every 4 weeks. Most recently, MONADOO was updated on October 1, 2026 and Constant Scale on September 30, 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.*