Comparison

Bubble Level vs CADViewer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Bubble Level

This utility app functions as a precise spirit level for your iOS devices. It's ideal for tasks like aligning picture frames, measuring angles, and checking the levelness of various surfaces. The app offers calibration and accurate readings to a tenth of a degree.

Highlights
  • Measure surface level
  • Calibrate with one click
  • Accurate to 0.1 degree
  • Retina display support
  • Picture frame alignment
  • Angle and slope measurement
Features
Read full description

Bubble Level is an accurate and simple to use spirit level for your iPhone, iPad and iPod touch. It's great for aligning picture frames or for angle measurements. Features: ◉ Measure the level of any surface. ◉ It can be calibrated with the click of a button and the calibration is saved automatically. ◉ It's accurate to one tenth of a degree. ◉ Full Retina support. This tool can be used for: ◉ Picture frame alignment ◉ Measuring angles and slopes ◉ Checking the surface level of tables, shelves or any other object ◉ Measuring the inclination of a ship, aircraft or car ◉ Roof pitch calculation ▶ Calibration instructions: - To calibrate the level, hold the device upright against a reference surface ( landscape mode with the button to the left ) and press the red Calibrate button. Download this app today!

About

CADViewer

Features
Read full description

扫描王全能宝是一款OCR文字识别软件,使用手机就可以实现文字识别、手写识别、文件扫描、证件扫描、表格识别等功能,识别后的文字可以进行在线编辑调整、翻译,并且可以导出为word、txt、PDF、图片等多种格式,是您的移动多功能扫描仪。 【核心功能】 • 多格式图纸预览:支持 DWG、DXF、DWF、PDF、STEP、STP、IGES、IGS、STL、OBJ 等常见图纸和三维模型格式 • 2D 图纸查看:支持模型空间、纸空间、布局切换、图层显示隐藏、视图调整和多种背景模式 • 3D 模型查看:支持三维模型旋转、平移、缩放、视图切换、渲染样式和模型显示控制 • PDF 预览与转换:支持 PDF 文件查看,并可将部分二维 CAD 图纸导出为 PDF 文件 • 文件管理:从系统“文件”中主动选择并导入图纸,支持最近图纸、本地图纸、搜索、重命名、删除和分享 • 内置示例:预置示例图纸和三维模型,打开应用即可体验主要功能 • CAD 模版:内置平面和立面 CAD 素材模版,方便快速查看和使用 【图纸批注与测量】 • 绘制直线、矩形、圆形、曲线等图形 • 添加文字批注和测量标记 • 测量两点之间的距离 • 测量封闭区域面积 • 支持标点吸附,帮助快速定位图纸中的关键点 • 批注信息单独保存,不修改原始图纸内容 • 下次打开同一文件时,可恢复之前保存的批注内容 【实用工具箱】 • 水平仪:检测设备横向和竖向倾斜角度 • 分贝仪:实时测量环境声音,并查看噪声等级说明 • 量角器:使用摄像头辅助测量角度 • 尺子:提供屏幕测量、单位切换和尺子校准功能 • 挂画校准:辅助检测墙面或画面是否水平 • 考勤打卡相机:拍摄带有时间、地点等信息的考勤照片 • 工程计算:提供回填土、圆柱体、长方体、圆锥体、球体等常用工程计算工具 【会员服务】 开通 CAD 专业看图会员后,可根据会员套餐解锁更多图纸查看、批注、测量、图层、布局、工程计算和模板等功能权益,具体以应用内会员页面显示为准。 应用内提供连续包月和连续包年订阅: • 订阅费用将在确认购买后从 Apple ID 账户扣除 • 订阅会自动续期,除非在当前订阅周期结束前至少 24 小时关闭自动续订 • 用户可以在 Apple ID 账户的订阅设置中管理或取消订阅 • 取消订阅后,当前订阅周期内的已购买权益仍可继续使用,到期后不再自动续费 • 具体价格以购买页面显示为准 隐私政策: https://policy.camoryapps.com/moreapps/privacy_policy/com.ysg.cadviewer.ios/policy_other_cn.html 用户协议: https://policy.camoryapps.com/moreapps/privacy_policy/com.ysg.cadviewer.ios/protocol_other_cn.html 会员服务条款: https://policy.camoryapps.com/moreapps/privacy_policy/com.ysg.cadviewer.ios/subscription_instructions_other.html

Screenshots

Bubble Level2 screens
CADViewer4 screens

Verdict

The call

The clearest difference is ads: CADViewer at none against Bubble Level's shown. On price, in-app purchases, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Bubble Level sells 1 one-off in-app purchase and CADViewer sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
Bubble Level versus CADViewer: the parameters behind the verdict, then further details
ParameterBubble LevelCADViewer
PriceFreeFree
Rating4.6 (3.1K ratings) — better—
Positive reviews29.4% of reviews—
Number of ratings3.1K — better—
Update frequencyEvery 10 months—
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.6 — better
Further details — not scored
Size20 MB53 MB
Age rating12+4+
DeveloperNetviking ABWuhan Yousigan Technology Co., Ltd

Bugs and requests

Bubble Level

Reported bugs

3 issues
  • Ads crash the app
  • Inability to exit the app due to ads
  • Calibration button doesn't work as expected

Requested features

2 requests
  • Percent slope display option
  • Ability to rotate bubble to vertical position

CADViewer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Bubble Level

One-time1
  • Pro Upgrade$4.99
2 purchases

CADViewer

Subscriptions2
  • 连续包月$2.991 Month
  • 连续包年$3.991 Year

Questions

Is Bubble Level free?
Bubble Level is free to download, with in-app purchases available.
Is CADViewer free?
CADViewer is free to download, with in-app purchases available.
Do Bubble Level or CADViewer have ads?
Bubble Level shows ads; CADViewer does not.

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