酷家乐设计师 vs Ruler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
酷家乐设计师
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Coozign-for Interior Designer Interior design,home design, renovate and redecorate,home improvement. CONTACT US Website：kujiale.cn Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ruler
This application provides a precise measurement tool by rendering according to your device's screen width specifications. It has been tested on a wide range of Apple devices to ensure accuracy for your measuring needs.
- Accurate screen-based rendering
- Device-specific calibration
- Wide device compatibility
- Precise measurement tool
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You may already noticed that most of ruler apps are actually wrong. Accurate Ruler renders according to screen width spec of the device that your are currently using. So It is accurate. Already tested in following devices including: iPhone X, XR, XS, Max All sizes of iPad 2019 iPhone 4 iPhone 4s iPhone 5 iPhone 5s iPhone 5c iPhone 6 iPhone 6 plus iPhone 6s iPhone 6s plus iPhone se iPhone 7 iPhone 7 plus iPad 2 iPad 3 iPad 4 iPad air iPad air 2 iPad mini iPad min 2 iPad min 3 iPad mini 4 iPad pro, iPod Touch 5/6 If your device is one of them, we insure it is accurate.
Screenshots
Verdict
The clearest difference is rating: 酷家乐设计师 at 4.7 against Ruler's 2.6. 酷家乐设计师 also leads on review sentiment (96% vs 54%) and update cadence (every 6 weeks vs every 5 months). Ruler's advantage is in-app purchases (none vs 12) and ads (none vs shown). On price and device support 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. 酷家乐设计师 sells 12 in-app purchases, starting at $8.99 per month. Ruler asks for nothing beyond the download.
酷家乐设计师 holds the better App Store score, 4.7 against 2.6. Both are backed by a comparable volume of ratings — 159 and 40 respectively. Written reviews point the same way: 96% of 酷家乐设计师's written reviews are positive against 54% of Ruler's.
酷家乐设计师 ships an update every 6 weeks, Ruler every 5 months. The most recent releases landed on November 1, 2026 and October 20, 2026 respectively.
| Parameter | 酷家乐设计师 | Ruler |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (159 ratings) — better | 2.6 (40 ratings) |
| Positive reviews | 95.8% of reviews — better | 54.2% of reviews |
| Number of ratings | 159 — better | 40 |
| Update frequency | Every 6 weeks — better | Every 5 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 268 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | MeiJianHangZhou | 祥祎 刘 |
Customer experience
酷家乐设计师
Ruler
Bugs and requests
酷家乐设计师
Not enough reviews yet to summarise bugs or requests.
Ruler
Reported bugs
10 issues- White/blank screen display on newer iOS versions
- App crashes and freezes on launch
- Ruler not rendering or displaying
- Toggle switches stuck in grey/disabled state
- Incorrect device identification (iPad size misidentification)
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- Incompatibility with iOS 13.3 and newer
- Authenticator code clipboard access on launch
- Screen rotation issues
- Inaccurate ruler scaling on iPhone 8, 11, 12, 13, 16 Pro
- App requests rating before allowing use
Requested features
7 requests- Support for iPhone 12, 13, 14, 15, 16 and newer models
- Millimeter measurement option
- Longer ruler display
- Fractional inches (1/16, 1/8) instead of decimal inches
- Support for newer iPad models
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- Ability to disable ads
- Better device detection and compatibility
In-app purchases
酷家乐设计师
- 会员连续包月卡1 Month trial$8.991 Month
- 酷家乐AI特惠升级包$0.99
- 3000核豆$3.99
- 酷家乐AI升级包$3.99
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- 6000核豆$8.99
- 会员月卡$12.99
- 10000核豆$14.99
- 20000核豆$29.99
- 会员半年卡$47.99
- 会员特惠年卡$64.99
- 50000核豆$69.99
- 会员年卡$84.99
Ruler
No in-app purchases
