# Quick Measure vs JianYi

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.

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.

## The numbers

| Metric | Quick Measure | JianYi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/quick-measure-precise-ruler/id6738601525/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/jianyi-ai-flashcards/id6749509377/reviews) |
| Number of ratings | **4** | 3 |
| Positive reviews | **100.0% of reviews** | 55.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | Free | Free |
| Size | 7 MB | 11 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [大靖 刘](https://appshunter.io/developer/1233662093) | [俊斐 胡](https://appshunter.io/developer/1830831988) |

## What reviewers say

### Quick Measure

[App page](https://appshunter.io/ios/app/quick-measure-precise-ruler/id6738601525)

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.

**Highlights:** 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

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

**In-app purchases:** none


### JianYi

[App page](https://appshunter.io/ios/app/jianyi-ai-flashcards/id6749509377)

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.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Quick Measure free?

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

### Is JianYi free?

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

### Which has better reviews, Quick Measure or JianYi?

Quick Measure and JianYi are both rated 5.0 out of 5 on the App Store, from 4 and 3 ratings respectively.

### Do Quick Measure or JianYi have ads?

Neither Quick Measure nor JianYi shows ads.

### Which is updated more often, Quick Measure or JianYi?

Quick Measure ships an update every 2 weeks, and JianYi every 3 days. Most recently, Quick Measure was updated on October 30, 2026 and JianYi on November 8, 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.*