Comparison

PrivaCycle vs DdongDal

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

Head to head
About

PrivaCycle

Features
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Private period tracking, stored on your device by default. PrivaCycle is a menstrual cycle tracker for people who want practical cycle insights without ads, analytics SDKs, or a developer-run server holding their health history. Track periods, symptoms, moods, temperature, and notes while PrivaCycle keeps local app data encrypted on your device. PRIVATE BY DESIGN - AES-256-GCM encryption for local app data - No PrivaCycle account or developer-operated health database - No ads, analytics SDKs, or tracking SDKs - Local-first storage by default - Optional encrypted iCloud backup and multi-device sync - Optional HealthKit sync for basal body temperature, only with your permission CYCLE TRACKING - Period dates and flow intensity - Symptoms, moods, and daily notes - Basal body temperature tracking - Temperature unit preferences for Celsius or Fahrenheit - Calendar view with continuous period ranges - Pattern-based period estimates - Bulk entry for past period days SECURITY TOOLS - PIN or local passphrase protection - Face ID or Touch ID unlock when enabled - Decoy Mode with a separate encrypted profile - Custom auto-lock presets - Panic code emergency erase for protected data on this device - iOS file protection for encrypted local storage PRIVACYCLE PREMIUM An optional subscription unlocks: - Unlimited future period estimates - Encrypted Cloud Sync backup - Multi-device sync through your private iCloud database - HealthKit import and export for basal body temperature PrivaCycle is built for privacy-conscious users, people in restrictive environments, and anyone who wants cycle tracking without surveillance-based business models. Your body. Your data. Your control. Period estimates are informational only and should not be used as medical advice or contraception. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://privacycle.app/privacy/

About

DdongDal

Features
Read full description

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: โ–  You have recurring constipation or diarrhea and want to see your pattern โ–  You want to know how often and when you go โ–  You're curious how food (spicy dishes, coffee, probiotics...) affects your poop โ–  Your doctor asked you to keep a bowel diary โ–  You want this month's bowel health at a glance on one calendar Features: โ–  Pick a shape and you're done โ€” log in 3 seconds, multiple times a day โ–  8 poop shapes based on the Bristol stool scale (failed attempts count too) โ–  Calendar color-coded by constipation / normal / diarrhea โ–  Line graphs of state & count (from 1 week up to 1 year) โ–  Time-of-day distribution (dawn/morning/day/night) and streaks โ–  12 free emotion stickers (food & workout packs via in-app purchase) โ–  Add photos, condition tags, and memos to each day โ–  Dark mode, PIN lock, reminders, backup/restore โ–  Cozy handwriting fonts and a paper-textured design All records stay on your phone only.

Screenshots

PrivaCycle4 screens
DdongDal4 screens

Verdict

The call

The clearest difference is in-app purchases: DdongDal at none against PrivaCycle's 2. DdongDal also leads on iOS requirement (13.0 vs 18.6). PrivaCycle's advantage is ads (none vs shown). On price, update cadence 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. PrivaCycle sells 2 in-app purchases, starting at $4.99 per month. DdongDal asks for nothing beyond the download.

UpkeepUpdate frequency

PrivaCycle ships an update every 3 weeks, DdongDal monthly. The most recent releases landed on September 30, 2026 and October 11, 2026 respectively.

Scorecard3 real differences ยท 3 level
PrivaCycle versus DdongDal: the parameters behind the verdict, then further details
ParameterPrivaCycleDdongDal
PriceFreeFree
Update frequencyEvery 3 weeks โ€” betterMonthly
AdsNo โ€” betterYes
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS18.613.0 โ€” better
Further details โ€” not scored
Size4 MB43 MB
Age rating12+4+
DeveloperBanana Pancakes s.r.o.HyeIn Kim

In-app purchases

2 purchases

PrivaCycle

Subscriptions2
  • Premium Monthly$4.991 Month
  • Permium Annual$49.991 Year
None

DdongDal

No in-app purchases

Questions

Is PrivaCycle free?
PrivaCycle is free to download, with in-app purchases available.
Is DdongDal free?
DdongDal is free to download, with no in-app purchases.
Do PrivaCycle or DdongDal have ads?
DdongDal shows ads; PrivaCycle does not.
Which is updated more often, PrivaCycle or DdongDal?
PrivaCycle ships an update every 3 weeks, and DdongDal monthly. Most recently, PrivaCycle was updated on September 30, 2026 and DdongDal on October 11, 2026.

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