# NaturaM 公式アプリ vs エコー写真

The clearest difference is update cadence: エコー写真 at every 6 weeks against NaturaM 公式アプリ's every 38 months. NaturaM 公式アプリ's advantage is iOS requirement (11.0 vs 18.0). 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.

NaturaM 公式アプリ ships an update every 38 months, エコー写真 every 6 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | NaturaM 公式アプリ | エコー写真 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (13 ratings)](https://appshunter.io/ios/app/id1610083503/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | — | 40.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 6 weeks** |
| Size | 37 MB | 70 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TAKAKAZU INOUE](https://appshunter.io/developer/1551923589) | [ROLLCAKE Inc.](https://appshunter.io/developer/789614906) |

## What reviewers say

### NaturaM 公式アプリ

[App page](https://appshunter.io/ios/app/naturam/id1551923587)

**In-app purchases:** none


### エコー写真

[App page](https://appshunter.io/ios/app/id1610083503)

**In-app purchases:** none


## Frequently asked questions

### Is NaturaM 公式アプリ free?

NaturaM 公式アプリ is free to download, with no in-app purchases.

### Is エコー写真 free?

エコー写真 is free to download, with no in-app purchases.

### Do NaturaM 公式アプリ or エコー写真 have ads?

Neither NaturaM 公式アプリ nor エコー写真 shows ads.

### Which is updated more often, NaturaM 公式アプリ or エコー写真?

NaturaM 公式アプリ ships an update every 38 months, and エコー写真 every 6 weeks. Most recently, NaturaM 公式アプリ was updated on October 25, 2026 and エコー写真 on October 31, 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.*