DrySky vs Marker
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
DrySky
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DrySky helps families manage childhood bedwetting with simple tracking, real insights, and emotional support. Track dry nights, monitor medications, understand patterns, and celebrate progress. Generate reports for your pediatrician. Multi-child support, bilingual interface, privacy-first design. Built on medical research. Designed with compassion. Perfect for families navigating bedwetting together.
Marker
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Marker is the longevity bloodwork log for people who track ApoB, not just LDL. Log your panel โ ApoB, Lp(a), hsCRP, HbA1c, fasting glucose and insulin, triglycerides, total and HDL/LDL cholesterol โ and Marker shows each value against a cited, named-author optimal range, then charts your trend over time. WHY MARKER IS DIFFERENT Most apps compare your labs to generic "reference ranges" โ the bar for not being sick. Marker compares them to the optimal targets longevity-minded people actually aim for, and every single one names its source: โข ApoB under 60 mg/dL โ Peter Attia, Outlive โข hsCRP under 1.0 mg/L โ CDC/AHA โข HbA1c & fasting glucose โ ADA โข Triglycerides, cholesterol, HDL, LDL โ NCEP ATP III No "algorithm developed by our doctors." Named authorities you can look up yourself. WHAT YOU GET โข A clean panel dashboard โ every marker, your latest value, and where it sits โข A trend chart for each marker with the optimal line drawn in โข Frictionless entry โ log a whole draw in one screen โข Plain-English context for what each marker means โข 100% private and offline โ no account, no cloud, no ads PRICING Free to try for 48 hours. Unlock everything forever with a single purchase โ no subscription, ever. Marker is an educational reference of published targets. It is not medical advice and does not diagnose. Always discuss your results with your physician.
Screenshots
Verdict
The clearest difference is price: Marker at Free against DrySky's $2.99. DrySky's advantage is in-app purchases (none vs 1) and update cadence (daily vs monthly). On ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Marker is free to download; DrySky costs $2.99 up front. Marker sells 1 one-off in-app purchase. DrySky asks for nothing beyond the download.
DrySky ships an update daily, Marker monthly. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.
| Parameter | DrySky | Marker |
|---|---|---|
| Price | $2.99 | Free โ better |
| Update frequency | Daily โ better | Monthly |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 15.1 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 31 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Avraam Mavridis | Roman Kopaliani |
In-app purchases
DrySky
No in-app purchases
Marker
- Marker Pro$9.99









