Comparison

Spot On Period Tracker vs Euki

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

Head to head
About

Spot On Period Tracker

Easily track your menstrual cycle, predict your period and fertile windows, and manage birth control with discreet reminders. Get support and resources from health experts.

Highlights
  • Period and fertility tracking
  • Birth control reminders
  • Symptom logging
  • Activity tracking
  • Health educator hotline access
Read full description

“This new period tracking app is a serious game-changer.” — Teen Vogue Staying on top of your cycle has never been easier or more fun with Spot On — a birth control and period tracker powered by Planned Parenthood Direct. Stay consistent with birth control reminders, guidance, and tips — no matter your method or your schedule. If you’re not on birth control, Spot On can accurately predict your period and give you a heads up on when you’re likely to be fertile. Track Your Period, Fertility, and Menstrual Cycle • Your flow — from spotting to light to heavy days. • Your symptoms — fatigue, cramps, or stomach aches. • Your activities — exercise, sex, or sleep quality Manage Your Birth Control • Track any method that affects your period: the pill, patch, ring, implant, shot, and IUD. • Set discreet reminders specific to your birth control or menstrual cycle. Support & Resources • Connection to Chat/Text health educator hotline to speak directly with experts. • No judgment or assumptions about you, your reproductive goals, or your reasons for using birth control. “ ...a smart, unassuming, useful piece of technology — thank the gynecological cosmic forces.” — The Cut “We’ve already downloaded it — have you?” — Shape

About

Euki

This app offers comprehensive sexual health information and tracking tools with a strong emphasis on user privacy. It allows for customizable health tracking, period predictions, and access to a content library vetted by experts. Additionally, it features a care navigator to find reproductive health services.

Highlights
  • Customizable health tracking
  • Period and cycle predictions
  • Content library on sexual health
  • Care Navigator for health services
  • PIN protection for data
  • Anonymous data storage
Features
Read full description

Euki is the privacy first period tracker - plus so much more. Euki empowers you to take control of your health data and decisions with customizable health tools and learning resources- all with best in class privacy features. You can give feedback on the App via our anonymous, encrypted survey https://bit.ly/Euki-UX-Survey. And- if you love Euki - please help us by leaving a review in the App Store. Euki is a non-profit, open source project: co-designed by leading reproductive health researchers, privacy experts, and users like you! Learn more or donate to support our work via our website www.eukiapp.org. *Privacy. Period. No Data Collection Your data is stored locally (on your device) and nowhere else. Data Deletion You can delete data on the spot or schedule sweeps to remove sensitive information from your phone. No Third-Party Tracking When you use Euki, the only person collecting your data or tracking your activity is YOU. Anonymity You don’t need an account, email, or phone number to use Euki. PIN Protection You can set a customizable PIN passcode to protect your Euki data. *Track: Take control of your health Customizable Tracking Track everything from monthly bleeding to acne, headaches, and cramps. You can also set appointment and medication reminders. Period Predictions Know what to expect, when! The more you track, the more accurate the predictions will be. Cycle Summary Get a full picture of your cycle, from the average length of your cycle to the duration of each period, with Euki’s cycle summary. *Learn: Make Empowered Choices About Your Health Content Library Find non-judgmental information about abortion, contraception, sexually transmitted infections, and more—all vetted by health experts Personal Stories Discover real, relatable stories about other people’s sexual health experiences *Search: Find Care Options That Meet Your Needs and Preferences New Feature (Public Beta): Care Navigator Search, filter, and save up-to-date information on reproductive health care providers, from telehealth clinics to abortion support hotlines. Note: Although we have tested for privacy and security, this specific feature is in a ‘Public Beta’. This means we will be incorporating your feedback to improve its design and function. Give input via our encrypted, anonymous survey https://bit.ly/Euki-Care-Nav. Interactive Quizzes Take a quick quiz to decide which forms of contraception or other care might be best for you *Feature Details Abortion and Miscarriage Support Learn about different types of abortion and how to find a clinic you can trust Prepare for a clinic appointment, including what questions to ask a clinician and how to get financial support Set reminders to help you remember an appointment or when to take your pills Browse FAQs for answers and explore trusted resources for more information Read stories from real people who’ve had abortions or miscarriages Connect with organizations that provide free, confidential legal support Contraception Information Decide what matters most to you about contraception—like how often to take it or how to start or stop using it Access more detailed information about the contraception methods that might work for you Learn where and how to access your method of choice Comprehensive Sex Ed Explore easy-to-understand information on sex, gender, and sexuality Learn about consent and where you can turn for support Discover affirming resources that help answer other questions about LGBTQ issues, sex, gender, and health Euki Takes User Input Seriously Share feedback or requests through our anonymous, encrypted User Survey https://bit.ly/Euki-UX-Survey. Learn about or join our User Advisory Team. Reach out on social: IG @eukiapp, TikTok @euki.app Looking for other support? Email us: eukiapp@protonmail.com. Love Euki? Please help us by leaving a review in the App Store.

Screenshots

Spot On Period Tracker4 screens
Euki4 screens

Verdict

The call

Spot On Period Tracker and Euki both sit at 4.2 stars, but that hides the real split: 70% of Euki's written reviews are positive against 19% of Spot On Period Tracker's. Euki also leads on iOS requirement (13.4 vs 15.1). Spot On Period Tracker's advantage is ratings volume (15K vs 116). On price, rating, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.2 for Spot On Period Tracker against 4.1 for Euki. That said, the two scores are not equally well evidenced: Spot On Period Tracker has 15K ratings behind it against 116, so its average is the more settled of the two. Written reviews are what separate them: 19% of Spot On Period Tracker's written reviews are positive against 70% of Euki's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 27, 2026 and September 28, 2026 respectively.

Scorecard3 real differences · 7 level
Spot On Period Tracker versus Euki: the parameters behind the verdict, then further details
ParameterSpot On Period TrackerEuki
PriceFreeFree
Rating4.2 (15K ratings) — better4.1 (116 ratings)
Positive reviews18.8% of reviews70.2% of reviews — better
Number of ratings15K — better116
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.113.4 — better
Further details — not scored
Size33 MB51 MB
Age rating12+12+
DeveloperPlanned Parenthood Direct, Inc.Euki, Inc.

Customer experience

Spot On Period Tracker

All ratings15,401 ratings
Positive80.5%
Neutral4.6%
Negative14.9%
Written reviews149 reviews
Positive18.8%
Neutral16.8%
Negative64.4%

Euki

All ratings116 ratings
Positive76.7%
Neutral8.6%
Negative14.7%
Written reviews104 reviews
Positive70.2%
Neutral10.6%
Negative19.2%

User reviews

Spot On Period Tracker

From 15K App Store ratings

What we love

  • 🚀 Easy to log and track periods
  • 📆 Helpful calendar view
  • 💊 Ability to track birth control
  • 🔒 Private and secure
  • 💡 Customizable moods and symptoms

Room to improve

  • 🐛 Bugs and glitches after updates
  • 🔀 Confusing new layout and navigation
  • 🔄 Inability to edit or correct data
  • 📤 Loss of historical data
  • 🕰️ Unreliable reminders and notifications

Euki

From 116 App Store ratings

What we love

  • 🔒 Strong privacy protection and data security
  • 💰 Completely free with no paywalls or premium features
  • 📱 User-friendly and intuitive interface
  • 🎓 Comprehensive reproductive health education resources
  • 🔐 PIN protection with fake password decoy feature

Room to improve

  • 🐛 Frequent app crashes and glitches
  • ❌ No dark mode option
  • 📤 Cannot export or transfer data between devices
  • ⏰ Lacks notification/reminder features for upcoming periods
  • 🎨 Unappealing graphics and design aesthetic (subjective)

Bugs and requests

Spot On Period Tracker

Reported bugs

4 issues
  • Login and account issues
  • Calendar and cycle prediction inaccuracies
  • Inability to edit or correct period/symptom entries
  • Inconsistent behavior with birth control tracking

Requested features

5 requests
  • Add note-taking functionality
  • Provide more guidance for missed/doubled pills
  • Allow customization of quick log options
  • Improve tracking for irregular cycles and conditions
  • Sync data across devices and platforms

Euki

Reported bugs

13 issues
  • App crashes when accessing certain features
  • Calendar display missing days
  • Randomly added contraceptive shot entries to all logged days
  • App crashes when editing past bleeding logs
  • Cycle length recalculation not updating after new data
Show 8 more
  • Inability to uncheck accidentally selected items
  • Calendar resets to current date when editing past entries
  • Icons swapped in recent updates
  • Data disappearing without user action
  • PIN fake password feature (0000) not functioning
  • Finicky tap controls for calendar editing
  • App closes when attempting to correct logged data
  • Inaccurate cycle predictions despite consistent data

Requested features

22 requests
  • Dark mode support
  • Data export/import functionality
  • Period and ovulation notifications/reminders
  • Additional symptom tracking options (back pain, leg cramps, sleep changes, bowel changes, memory issues)
  • Basal body temperature tracking
Show 17 more
  • Menstrual pad type and absorbency tracking
  • Discharge type tracking
  • Cycle day numbers displayed on calendar
  • Ovulation and luteal phase indicators on calendar
  • Medication tracking (not just contraception)
  • Custom symptom categories
  • Longer notes section (1000+ characters)
  • Photo attachment capability for notes
  • Data download/export for doctor sharing
  • Follicular and luteal phase tracking
  • Multiple flow options per day
  • Birth control pill late/early tracking options
  • Perimenopause and menopause information
  • PIN recovery/reset mechanism
  • Appointment tracking separate from symptoms
  • Cycle summary display on app opening
  • Improved calendar interface for data entry

In-app purchases

None

Spot On Period Tracker

No in-app purchases

None

Euki

No in-app purchases

Questions

Is Spot On Period Tracker free?
Spot On Period Tracker is free to download, with no in-app purchases.
Is Euki free?
Euki is free to download, with no in-app purchases.
Which has better reviews, Spot On Period Tracker or Euki?
Spot On Period Tracker is rated higher. Spot On Period Tracker averages 4.2 out of 5 from 15K ratings, while Euki averages 4.1 from 116 ratings.
Do Spot On Period Tracker or Euki have ads?
Neither Spot On Period Tracker nor Euki shows ads.
Which is updated more often, Spot On Period Tracker or Euki?
Spot On Period Tracker ships an update every 3 weeks, and Euki every 3 weeks. Most recently, Spot On Period Tracker was updated on September 27, 2026 and Euki on September 28, 2026.

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