八字排盘 vs PD Meter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
八字排盘
This app provides professional birth chart analysis and fortune-telling based on traditional Chinese astrology. It offers daily, monthly, and yearly predictions for various aspects of life, including personality, wealth, relationships, career, and health. Users can also discover their lucky numbers, colors, and auspicious locations.
- Daily, monthly, and yearly fortune predictions
- Analysis of personality, wealth, relationships, career, and health
- Lucky numbers, colors, and auspicious location identification
- Professional birth chart generation
- Comprehensive life destiny analysis
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八字算命，专业算命运，解答你的人生疑问。 关心自己，看每日运势短评，可以知道自己当日的幸运数、吉祥色，还可以掌握最佳的财位和桃花位； 帮助你提前掌握未来运势，是八字算命应用专门为用户打造的功能，为你分析明日、本月、今年、未来十年的运势，让自己更了解自己。 八字算命应用查阅诸多古籍，结合传统生辰八字为你免费专业排盘，图文并茂，全面剖析，让你一目了然。 为您提供全方位的运势预测，解答你的一生命运发展，包括性格、财运、婚恋、事业和健康等。
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: 八字排盘 at 97% against PD Meter's 25%. 八字排盘 also leads on rating (4.9 vs 2.0) and ratings volume (443 vs 4). PD Meter's advantage is in-app purchases (none vs 8) and iOS requirement (11.0 vs 13.0). On price, update cadence, ads 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. 八字排盘 sells 8 one-off in-app purchases. PD Meter asks for nothing beyond the download.
八字排盘 holds the better App Store score, 4.9 against 2.0. That said, the two scores are not equally well evidenced: 八字排盘 has 443 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 97% of 八字排盘's written reviews are positive against 25% of PD Meter's.
八字排盘 ships an update every 6 weeks, PD Meter monthly. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.
| Parameter | 八字排盘 | PD Meter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (443 ratings) — better | 2.0 (4 ratings) |
| Positive reviews | 97.1% of reviews — better | 25.0% of reviews |
| Number of ratings | 443 — better | 4 |
| Update frequency | Every 6 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 62 MB | 93 MB |
| Age rating | 4+ | 4+ |
| Developer | 佳龙 胡 | 杭州美戴科技有限公司 |
Customer experience
八字排盘
PD Meter
Bugs and requests
八字排盘
Reported bugs
2 issues- Date display issue in 'Flow of the Day' feature
- Compatibility problems with older devices
Requested features
4 requests- Dark mode option
- More customization options
- Enhanced analytical tools
- Ability to save and export reports
PD Meter
Not enough reviews yet to summarise bugs or requests.
In-app purchases
八字排盘
- 充值18个元宝$0.99
- 充值13个元宝$2.99
- 排盘解读$2.99
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- 充值21个元宝$3.99
- 充值48个元宝$9.99
- 充值96个元宝$19.99
- 充值230个元宝$49.99
- 充值480个元宝$99.99
PD Meter
No in-app purchases
