# Smafy vs 推しダイエット

The clearest difference is in-app purchases: Smafy at none against 推しダイエット's 1. 推しダイエット's advantage is review sentiment (64% vs 33%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 推しダイエット sells 1 in-app purchase, starting at $2.99 per month. Smafy asks for nothing beyond the download.

Smafy ships an update every 3 weeks, 推しダイエット monthly. The most recent releases landed on September 6, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Smafy | 推しダイエット |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/smafy/id1551598113/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 33.3% of reviews | **64.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 79 MB | 43 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Naradewa Inc.](https://appshunter.io/developer/949334413) | [shigeki suzuki](https://appshunter.io/developer/1492704516) |

## What reviewers say

### Smafy

[App page](https://appshunter.io/ios/app/smafy/id1551598113)

This app measures 14 body parts in seconds using your phone's camera. It displays body outlines and allows for easy before-and-after comparisons, helping you track changes beyond just weight. AI assistance ensures consistent measurements, and a passcode lock adds security.

**Highlights:** 14-part body measurement in 3 seconds, Body outline and portrait display, Before-after comparison (side-by-side/overlay), AI-assisted shooting for consistency, Graph function for numerical management, Passcode lock for security

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

**In-app purchases:** none


### 推しダイエット

[App page](https://appshunter.io/ios/app/id6448716540)

This app helps you track your weight and body fat with a fun, personalized approach. Set your favorite idol as your background and icon, and receive encouraging notifications to stay motivated on your fitness journey. It features simple input, clear graphs, and customizable themes for a seamless recording experience.

**Highlights:** Customizable idol background and icon, Personalized motivational messages, Simple weight, body fat, and BMI input, List-style calendar for easy viewing, Intuitive progress graphs, Multiple theme color options, Input reminder notifications

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 推しダイエットのサブスクリプション | $2.99 | per month |


## Frequently asked questions

### Is Smafy free?

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

### Is 推しダイエット free?

推しダイエット is free to download, with in-app purchases available.

### Do Smafy or 推しダイエット have ads?

Both Smafy and 推しダイエット show ads.

### Which is updated more often, Smafy or 推しダイエット?

Smafy ships an update every 3 weeks, and 推しダイエット monthly. Most recently, Smafy was updated on September 6, 2026 and 推しダイエット on September 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.*