LightLing vs Rulvo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LightLing
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Chinese, Japanese, French, Korean, German, Spanish, Portuguese, Cantonese, Italian, Russian, Thai, Vietnamese, Danish, Hungarian... continuously expanding. You can even learn English in Chinese! A groundbreaking APP that defines a whole new learning experience: LightLing! The smart learner's choice. [Lightweight & Efficient] No need to memorize vocabulary word by word. Progressive fill-in-the-blank exercises allow for easy repeated practice, guiding you from individual words to complete sentences and helping you master thousands of sentences imperceptibly. [Oral Practice] Start speaking from day one! A precise speech recognition engine helps you correct your pronunciation effortlessly. [Authentic & Practical] Carefully selected real-life example sentences, with the golden standard being the most commonly used, practical, and versatile expressions. [Fragmented Learning] Each lesson lasts from dozens of seconds to a few minutes, making full use of your fragmented time! [Fast Language Mastery] Especially ideal for polyglots—learn multiple languages simultaneously without switching between them! --- Subscription Information - Subscription Names: Thunderbolt Monthly $4.99 / Yearly $9.99 / Lifetime $9.99 - For accounts purchasing an auto-renewing subscription, your iTunes account will be charged 24 hours before the current monthly/yearly period ends. After successful charge, the subscription will be renewed for another period. - To cancel your subscription, manually go to your iPhone's "Settings" -> Tap "iTunes Store & App Store" -> Tap your "Apple ID", select "View Apple ID". Go to "Account Settings", tap "Subscriptions", and select Thunderbolt to cancel. - Privacy Policy: https://g6wqb1qgcp.feishu.cn/wiki/WzWbwUCMHiSF3LkiZxecAHqWnOd - Terms of Use: https://g6wqb1qgcp.feishu.cn/wiki/DTwfwEfhEiic6Uk3F2UcORQHnDc
Rulvo
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.
- Exam countdowns
- Study session timers
- Daily timetable scheduling
- Reminders and alarms
- Live Activity and Home Screen widgets
- Learning history and daily summaries
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Rulvo helps students stay on schedule and walk into exams prepared. Set a countdown to your next exam, plan your study blocks, and run focused sessions with a timer that keeps you on track. Rulvo has three modes: - Schedule: follow a daily timetable with a reminder for each class period. - Study: run focused study sessions with timed breaks. - Exam: practice under timed conditions, with a countdown and alarms. Features - Exam countdown on the home screen - Editable plans for different days - Alarms and reminders that ring on time - Live Activity and Home Screen widgets to see your progress at a glance - Learning history and a daily summary you can save as an image Rulvo Pro (optional) Pro adds strict mode, custom themes, and background sounds. Pro is a one-time lifetime purchase, not a subscription. New installs include a 7-day trial of Pro features. Rulvo is available in English and Simplified Chinese.
Screenshots
Verdict
The clearest difference is iOS requirement: LightLing at 15.6 against Rulvo's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. LightLing sells 3 in-app purchases, starting at $2.99 per month and Rulvo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
LightLing ships an update every 4 days, Rulvo every 5 days. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.
| Parameter | LightLing | Rulvo |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 4 days — better | Every 5 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 95 MB | 162 MB |
| Age rating | 12+ | 9+ |
| Developer | PXBT | 同德 郑 |
In-app purchases
LightLing
- Thunderbolt Monthly$2.991 Month
- Thunderbolt Year3 Days trial$12.991 Year
- Thunderbolt Lifetime$12.99
Rulvo
- 格律 Pro 永久解锁$5.99









