# Smar Pair vs 推しダイエット

The clearest difference is in-app purchases: Smar Pair at none against 推しダイエット's 1. 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. Smar Pair asks for nothing beyond the download.

Smar Pair ships an update every 5 weeks, 推しダイエット monthly. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Smar Pair | 推しダイエット |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 64.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 192 MB | 43 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Saiel International Co.,ltd](https://appshunter.io/developer/1665493774) | [shigeki suzuki](https://appshunter.io/developer/1492704516) |

## What reviewers say

### Smar Pair

[App page](https://appshunter.io/ios/app/smar-pair/id1665493772)

**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 Smar Pair free?

Smar Pair 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 Smar Pair or 推しダイエット have ads?

Both Smar Pair and 推しダイエット show ads.

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

Smar Pair ships an update every 5 weeks, and 推しダイエット monthly. Most recently, Smar Pair was updated on October 18, 2026 and 推しダイエット on October 15, 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.*