# SMART LOTTO vs RAYUL DIARY

The clearest difference is in-app purchases: RAYUL DIARY at none against SMART LOTTO's 1. RAYUL DIARY also leads on ads (none vs shown). SMART LOTTO's advantage is iOS requirement (13.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. SMART LOTTO sells 1 one-off in-app purchase. RAYUL DIARY asks for nothing beyond the download.

SMART LOTTO ships an update every 2 weeks, RAYUL DIARY every 10 days. The most recent releases landed on October 12, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | SMART LOTTO | RAYUL DIARY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/smart-lotto/id1544943147/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Monetization | Ad-supported | — |
| Size | 66 MB | 3 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SunHyeob Kim](https://appshunter.io/developer/946982071) | [YOUNGSOO KIM](https://appshunter.io/developer/1895715033) |

## What reviewers say

### SMART LOTTO

[App page](https://appshunter.io/ios/app/smart-lotto/id1544943147)

This app helps you generate and manage lottery numbers. It offers advanced customization options for number selection, saving your preferences, and provides lottery-related information like prize predictions and winning store locations. It aims to enhance your lottery playing experience.

**Highlights:** Customizable number generation with conditions, Save and reuse number selection criteria, Lottery number prediction based on statistics, Prize amount prediction, Winning store location information, Share generated numbers on social media

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 배너 광고 제거 | $0.99 | one-time |


### RAYUL DIARY

[App page](https://appshunter.io/ios/app/rayul-diary/id6781319802)

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

**In-app purchases:** none


## Frequently asked questions

### Is SMART LOTTO free?

SMART LOTTO is free to download, with in-app purchases available.

### Is RAYUL DIARY free?

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

### Do SMART LOTTO or RAYUL DIARY have ads?

SMART LOTTO shows ads; RAYUL DIARY does not.

### Which is updated more often, SMART LOTTO or RAYUL DIARY?

SMART LOTTO ships an update every 2 weeks, and RAYUL DIARY every 10 days. Most recently, SMART LOTTO was updated on October 12, 2026 and RAYUL DIARY 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.*