中华万年历 vs PD Meter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
中华万年历
This app offers a comprehensive calendar experience, including traditional Chinese calendars, lunar dates, weather forecasts, and holiday schedules. It also provides tools for setting reminders, managing notes, and tracking important dates. Users can personalize their reading experience with curated content.
- Traditional Chinese calendar lookup
- Lunar date conversion
- 15-day weather forecast
- Holiday and work adjustment schedules
- Event and anniversary reminders
- To-do list and note-taking
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【经典万年历，简单方便的日历APP！】 可适配iPhoneX/iPhone/iPod/iPad各种机型 【简介】 免费提供万年历查询、日历农历查询、公历农历转换、15日天气、节假日及调休安排、日程记事、节日纪念日提醒等实用功能。 1、日历：万年历、农历、节日节气、放假安排； 2、提醒：日程安排、生日提醒、记事备忘、待办事项、纪念日、倒数日提醒； 3、天气：15日天气预报、24小时天气趋势、实时空气质量及恶劣天气预警，天气动态一手掌握； 4、个性阅读：娱乐、亲子、情感、旅行…定制个人阅读口味。 【中华万年历会员自动订阅服务说明】 1、订阅服务：中华万年历连续包月会员（1个月） 2、订阅价格：连续包月产品为25/月 3、付款：用户确认购买并付款后计入iTunes账户 4、苹果iTunes账户会在到期前24小时内扣费，扣费成功后订阅周期顺延一个订阅周期 5、如需取消订阅，请打开苹果手机“设置” --> 进入“iTunes Store 与 App Store”-->点击 “Apple ID”，选择"查看Apple ID"，进入"账户设置"页面，点击“订阅”，选择中华万年历VIP 取消订阅。如未在订阅期结束的至少24小时前关闭订阅，此订阅将会自动续订 6、服务协议（含连续包月服务规则）：http://yun.zhwnl.cn/vip_service.html 7、隐私协议：http://www.zhwnl.cn/static/mobile/privacy.htm 8、帮助：http://yun.zhwnl.cn/vip_help.html 【联系我们】 如遇支付、退订等问题或者有什么好的建议，欢迎向我们反馈！ 在线帮助：进入设置-反馈，提交问题 微博/微信：@中华万年历 官方网站： http://www.zhwnl.cn
PD Meter
This application uses AI technology to measure interpupillary distance accurately. It offers a contactless method for measurement, avoiding close proximity required by traditional devices. Users can manually correct any AI recognition errors for precise results.
- AI-powered binocular interpupillary measurement
- Contactless measurement method
- High accuracy (0.1mm)
- Manual error correction
- Supports FPD and NPD measurements
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MEIDAI Interpupillometer is the world's first app which using AI technology for binocular interpupillary measurement. Using it can avoid the risk that traditional handheld interpupillometers requiring doctors and users facing each other in a extreme close distance (approximately 20cm). [Accuracy] 0.1mm [Result error] 0.3-0.5mm [Tips for use] For FPD measurement, focus at least 4 meters away. For NPD measurement, please follow the "distance reminder". [Steps] (1) Adjusting the face to the camera (2) Keep your face steady when prompted (3) Focus distance required to adjust sight * Use interpupillary distance for distance, look beyond the "tip arrow" to see the distance * Close to interpupillary distance, focus on "tip arrow" camera (4)) Click [Measure] to get interpupillary results (5) The errors in AI's pupil recognition can be corrected manually. For further technical support from professional organizations, please contact us: WeChat: 13957778558 Email: support@meidaitech.com Official Website: https://www.meidaitech.com
Screenshots
Verdict
The clearest difference is review sentiment: 中华万年历 at 80% against PD Meter's 25%. 中华万年历 also leads on rating (4.7 vs 2.0) and ratings volume (913 vs 4). PD Meter's advantage is in-app purchases (none vs 14) 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. 中华万年历 sells 14 in-app purchases, starting at $1.49 per month. PD Meter asks for nothing beyond the download.
中华万年历 holds the better App Store score, 4.7 against 2.0. That said, the two scores are not equally well evidenced: 中华万年历 has 913 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 80% of 中华万年历's written reviews are positive against 25% of PD Meter's.
中华万年历 ships an update every 2 weeks, PD Meter monthly. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.
| Parameter | 中华万年历 | PD Meter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (913 ratings) — better | 2.0 (4 ratings) |
| Positive reviews | 80.4% of reviews — better | 25.0% of reviews |
| Number of ratings | 913 — better | 4 |
| Update frequency | Every 2 weeks — better | Monthly |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 297 MB | 93 MB |
| Age rating | 4+ | 4+ |
| Developer | Etouch | 杭州美戴科技有限公司 |
Customer experience
中华万年历
PD Meter
Bugs and requests
中华万年历
Reported bugs
3 issues- Frequent app crashes
- Unresponsive touch inputs
- Disappearing user data after updates
Requested features
4 requests- Customizable widgets and layouts
- Integration with other calendar services
- Improved data migration during updates
- Support for more languages and regions
PD Meter
Not enough reviews yet to summarise bugs or requests.
In-app purchases
中华万年历
- 中华万年历连续包月会员$1.491 Month
- 万年历联合会员连续包月$3.991 Month
- 连续包季，3天免费3 Days trial$7.993 Months
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- 中华万年历连续季度会员$7.993 Months
- 好运币充值$0.99
- 快速提问咨询$1.99
- 好运币充值$3.99
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- 1个月$3.99
- 1 个月$3.99
- 好运币充值$6.99
- 中华万年历包年会员$9.99
- 中华万年历终身会员$12.99
- 终身会员$44.99
- 中华万年历终身会员$59.99
PD Meter
No in-app purchases
