# ecodaira vs studio//M's

The clearest difference is update cadence: studio//M's at every 8 months against ecodaira's every 23 months. ecodaira's advantage is iOS requirement (11.0 vs 15.1). 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.

ecodaira ships an update every 23 months, studio//M's every 8 months. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | ecodaira | studio//M's |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 8 months** |
| Monetization | Free | — |
| Size | 3 MB | 92 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hinodeya Institute for Ecolife Co.](https://appshunter.io/developer/558454967) | [Active Media Corp.](https://appshunter.io/developer/736484999) |

## What reviewers say

### ecodaira

[App page](https://appshunter.io/ios/app/ecodaira-sengen/id1204164446)

Track your household and business energy usage to easily calculate CO2 emissions. Develop eco-friendly habits for your wallet and the planet. Earn points and compete in rankings to make saving energy fun.

**Highlights:** Calculate CO2 emissions, Track electricity and gas usage, Develop eco-friendly habits, Earn eco-daira points, View CO2 emission rankings

**Features:** macOS Compatibility

**In-app purchases:** none


### studio//M's

[App page](https://appshunter.io/ios/app/studioms/id1497669584)

**In-app purchases:** none


## Frequently asked questions

### Is ecodaira free?

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

### Is studio//M's free?

studio//M's is free to download, with no in-app purchases.

### Do ecodaira or studio//M's have ads?

Neither ecodaira nor studio//M's shows ads.

### Which is updated more often, ecodaira or studio//M's?

ecodaira ships an update every 23 months, and studio//M's every 8 months. Most recently, ecodaira was updated on October 24, 2026 and studio//M's on October 20, 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.*