Royal lab vs DdongDal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Royal lab
This app provides advanced laboratory testing services with a focus on quality, accuracy, and timeliness. It utilizes cutting-edge technology and a fully automated system, supported by highly qualified medical staff to meet customer needs.
- Advanced technology and ISO 15189 compliance
- Fully automated lab testing system
- Qualified and competent medical staff
- Accurate, precise, and timely results
- 24/7 service availability
- Focus on customer satisfaction and improvement
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We absolutely believe we have an excellent chance to make a difference in the Quality of Laboratory Testing Why would you want to choose Royal lab as your service provider? · Technology We have got the very advanced technology & we apply the latest version of ISO 15189 (2012) to assure the best quality of lab testing. · Automation We have got a fully automated lab testing system "APTIO Automation System ® with hardly any human element interference. · qualified and competent medical staff We have got a highly qualified & competent medical staff to ensure our service is provided with high quality & safety measures that meet customers' needs & expectations. · Quality We claim we provide the best quality of lab testing service: Accurate – precise – timely – low cost – coherent unbroken manner "24-hour, 7 day a week". · Customer Satisfaction We pay a great deal of attention to our customers' needs & expectations through frequent questionnaires which we analyze perfectly to make plans for improvement
DdongDal
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DdongDal makes poop logging take just 3 seconds! A gut-health diary that organizes your bowel patterns with a calendar, graphs, and tables. Keep logging and find your body's rhythm! Perfect for you if: ■ You have recurring constipation or diarrhea and want to see your pattern ■ You want to know how often and when you go ■ You're curious how food (spicy dishes, coffee, probiotics...) affects your poop ■ Your doctor asked you to keep a bowel diary ■ You want this month's bowel health at a glance on one calendar Features: ■ Pick a shape and you're done — log in 3 seconds, multiple times a day ■ 8 poop shapes based on the Bristol stool scale (failed attempts count too) ■ Calendar color-coded by constipation / normal / diarrhea ■ Line graphs of state & count (from 1 week up to 1 year) ■ Time-of-day distribution (dawn/morning/day/night) and streaks ■ 12 free emotion stickers (food & workout packs via in-app purchase) ■ Add photos, condition tags, and memos to each day ■ Dark mode, PIN lock, reminders, backup/restore ■ Cozy handwriting fonts and a paper-textured design All records stay on your phone only.
Screenshots
Verdict
The clearest difference is ads: Royal lab at none against DdongDal's shown. DdongDal's advantage is update cadence (monthly vs every 12 months). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Royal lab ships an update every 12 months, DdongDal monthly. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.
| Parameter | Royal lab | DdongDal |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 12 months | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 48 MB | 43 MB |
| Age rating | 12+ | 4+ |
| Developer | Royal Lab | HyeIn Kim |
In-app purchases
Royal lab
No in-app purchases
DdongDal
No in-app purchases








