FertilFlow vs PregWeek
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
FertilFlow
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FertilFlow is your personal companion during your IVF, IUI or ICSI fertility journey. Keep track of everything ā from hormone levels and medication to appointments, symptoms and emotions ā all in one clear and supportive place. ⢠Track your fertility treatment journey (IVF, IUI, ICSI) ⢠Log hormone values and view your progress over time ⢠Manage medication schedules with reminders ⢠Keep a private diary for emotions and symptoms ⢠Compare previous treatment rounds ⢠Export your fertility journey as a PDF report ⢠Daily affirmations and mindfulness support ⢠Available in 7 languages FertilFlow helps you stay organised, informed and supported during an intensive fertility journey. FertilFlow is not a medical device and does not provide medical diagnoses or treatment advice. Always consult your doctor or healthcare provider before making medical decisions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
PregWeek
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PREMIUM ā PURCHASE REQUIRED: All features described below are part of Pro and require a purchase: a weekly or yearly auto-renewing subscription, or a one-time lifetime purchase. Which week am I in, how many days to go, and how big is the baby right now? PregWeek answers all three the moment you open it. Enter the due date from your midwife or doctor once, and every screen stays current on its own ā week by week, all the way to the finish. Most pregnancy apps want an account, an inbox of articles, and half your personal data before they show you anything. PregWeek is the opposite: a calm week-by-week companion that counts the clinical way (280 days from your last period, shown as "24 weeks 3 days"), keeps everything on your phone, and never shows an ad. WHAT YOU GET ⢠Open the app to "Week 24 of 40 ā 112 days to go", already up to date: no tapping, no syncing ⢠A size comparison for every week ā this week baby is about the size of a mango, next week an ear of corn ⢠The full 40-week journey to browse ahead, so you know what is developing in week 12 before you get there ⢠Your own note attached to any week ā the first kick gets written down in the week it actually happened ⢠An appointment log that walks in with you: the date, the questions you want to ask, and what your provider said ⢠One reminder on Monday mornings ā "You're in week 31" with that week's size ā never a nag-storm PERFECT FOR ⢠First-time parents who want the week number, not a content feed ⢠Dads and partners following the countdown on their own phone ⢠Anyone whose due date was revised after a scan ā change one date and every week recalculates ⢠Parents who felt watched by big pregnancy apps and want their data kept at home WHY NOT JUST A BIG PREGNANCY APP? The giants are media businesses: registration walls, sponsored articles, mailing lists. If what you actually reach for each morning is the week, the countdown, and this week's size, that is the entire point of PregWeek ā and it loads in a second. PRIVATE BY DEFAULT No account, no tracking, no ads. Your due date, week notes, and appointments stay in the app on your device, and deleting them is a single tap in Settings. PregWeek offers general week-by-week information and never replaces the advice of your midwife or doctor. PREMIUM (PURCHASE REQUIRED) Full Access unlocks browsing all 40 weekly milestones (not just your current week) with your own notes on each one, the appointment log, and the weekly Monday reminder. Choose a Weekly or Yearly auto-renewing subscription, or a one-time Lifetime purchase. Set your due date today and see exactly where the two of you are ā in one glance. Terms of Use: https://leanstudio.asia/terms-of-use Privacy Policy: https://leanstudio.asia/privacy-policy Support: support@leanstudio.asia
Screenshots
Verdict
The clearest difference is update cadence: FertilFlow at every 4 days against PregWeek's every 4 months. FertilFlow also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. FertilFlow sells 3 in-app purchases, starting at $3.99 per month and PregWeek sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
FertilFlow ships an update every 4 days, PregWeek every 4 months. The most recent releases landed on October 31, 2026 and November 3, 2026 respectively.
| Parameter | FertilFlow | PregWeek |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days ā better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod ā better | iPhone |
| Requires iOS | 15.1 ā better | 17.0 |
| Further details ā not scored | ||
| Size | 48 MB | 4 MB |
| Age rating | 12+ | 4+ |
| Developer | Roy Wynant | LEAN ASIA CO., LTD |
In-app purchases
FertilFlow
- FertilFlow Premium ā Monthly7 Days trial$3.991 Month
- FertilFlow Premium ā 6 Months7 Days trial$22.996 Months
- FertilFlow Premium ā Yearly7 Days trial$39.991 Year
PregWeek
- Trimester Weekly$4.997 Days
- Prenatal Journal Yearly$24.991 Year
- Bump Milestones Lifetime$49.99









