# 唯优 vs Rulvo

The clearest difference is in-app purchases: 唯优 at none against Rulvo's 1. 唯优 also leads on iOS requirement (13.0 vs 17.0). Rulvo's advantage is update cadence (every 5 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Rulvo sells 1 one-off in-app purchase. 唯优 asks for nothing beyond the download.

唯优 ships an update every 3 months, Rulvo every 5 days. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 唯优 | Rulvo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rulvo/id6807753839/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 446 MB | 162 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [梦阳 李](https://appshunter.io/developer/1373115201) | [同德 郑](https://appshunter.io/developer/6788617584) |

## What reviewers say

### 唯优

[App page](https://appshunter.io/ios/app/id1325428281)

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

**In-app purchases:** none


### Rulvo

[App page](https://appshunter.io/ios/app/rulvo/id6807753839)

This app helps students manage their academic life by providing tools for scheduling, focused study sessions, and exam preparation. It features countdowns, timers, and reminders to keep users on track and prepared for their academic goals.

**Highlights:** Exam countdowns, Study session timers, Daily timetable scheduling, Reminders and alarms, Live Activity and Home Screen widgets, Learning history and daily summaries

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 格律 Pro 永久解锁 | $5.99 | one-time |


## Frequently asked questions

### Is 唯优 free?

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

### Is Rulvo free?

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

### Do 唯优 or Rulvo have ads?

Neither 唯优 nor Rulvo shows ads.

### Which is updated more often, 唯优 or Rulvo?

唯优 ships an update every 3 months, and Rulvo every 5 days. Most recently, 唯优 was updated on November 2, 2026 and Rulvo on November 6, 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.*