Quick Measure vs JianYi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Quick Measure
This utility app provides a digital and augmented reality ruler for precise measurements. It includes features like unit conversion, a built-in level, and the ability to record and store measurement data.
- Digital ruler for precise length measurements
- AR ruler for measuring distances in real-world environments
- Measurement recording and storage
- Built-in level function
- Unit conversion between metric and imperial systems
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Welcome to Ruler Pro — Your All-in-One Smart Measurement Expert In this era of precision and efficiency, Ruler Pro offers you an ultimate solution with a suite of measurement tools. Whether you're a professional craftsman, a home decorator, or a tech enthusiast, Ruler Pro has got you covered for all your measurement needs, making every measurement simple and accurate. Key Features of Ruler Pro Include: Digital Ruler: Quickly and accurately measure lengths with just a tap on the screen to get precise readings. AR Ruler: Utilize augmented reality technology to place a virtual ruler in the real world, allowing you to measure hard-to-reach distances without a physical ruler. Measurement Records: Record and store your measurement data for easy access and sharing whenever needed. Level: The built-in level function ensures your projects remain perfectly horizontal, avoiding errors. Unit Conversion: Supports conversions between various units, making it easy to switch between metric and imperial systems. Why Choose Ruler Pro? User-Friendly: Intuitive interface design makes operations simple and straightforward, allowing even measurement novices to get started quickly. Multifunctionality: A one-stop solution that eliminates the need to download multiple apps, saving space and time on your device. High-Precision Measurements: Advanced algorithms and technologies ensure the accuracy of every measurement. Measure Anytime, Anywhere: No matter where you are, as long as you have your phone, you can make precise measurements. Augmented Reality Technology: With the AR ruler feature, you can visually measure spaces in any scenario. Ruler Pro - Making your life and work more convenient. Download now and experience the simplicity of measurement!
JianYi
Create and review flashcards using AI assistance for long-term memory retention. Organize notes, vocabulary, and exam topics into question-and-answer cards. Track study progress with a calendar and mastery insights.
- AI-assisted flashcard creation
- Spaced repetition intervals
- AI explanations and rewriting help
- Study calendar and progress tracking
- iCloud sync across devices
- Organize knowledge with tags
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JianYi is an AI-assisted flashcard app built for long-term memory. Turn course highlights, vocabulary, exam topics, and everyday notes into question-and-answer cards, then review them at a pace guided by your mastery. CORE EXPERIENCE • Create question-and-answer cards and organize knowledge with tags • Use spaced review intervals to reduce unnecessary repetition • Ask AI for explanations, examples, self-tests, and rewriting help while reviewing • Track consistency with a study calendar and understand progress through mastery insights • Sync cards and review history across iPhone, iPad, and Mac with iCloud JianYi works well for language learning, exam preparation, professional skills, and everyday knowledge management. Core card and review features require no account. AI connects to an online service only when you choose to use it. iCloud sync runs in the background and may take a little time.
Screenshots
Verdict
Quick Measure and JianYi both sit at 5.0 stars, but that hides the real split: 100% of Quick Measure's written reviews are positive against 56% of JianYi's. Quick Measure also leads on iOS requirement (13.0 vs 17.6). JianYi's advantage is update cadence (every 3 days vs every 2 weeks). On price, rating, ratings volume and ads 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Quick Measure against 5.0 for JianYi. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews are what separate them: 100% of Quick Measure's written reviews are positive against 56% of JianYi's.
Quick Measure ships an update every 2 weeks, JianYi every 3 days. The most recent releases landed on October 30, 2026 and November 8, 2026 respectively.
| Parameter | Quick Measure | JianYi |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews — better | 55.6% of reviews |
| Number of ratings | 4 — better | 3 |
| Update frequency | Every 2 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 7 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | 大靖 刘 | 俊斐 胡 |
Customer experience
Quick Measure
JianYi
In-app purchases
Quick Measure
No in-app purchases
JianYi
No in-app purchases
