Comparison

Period Cycle Tracker Lunation vs swiftCal AI Calorie Estimation

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

Head to head
About

Period Cycle Tracker Lunation

This app helps you understand your reproductive health by tracking your menstrual cycles, symptoms, and fertility. It offers AI-powered predictions for periods and fertile windows, with modes for conception and pregnancy tracking. Data is kept secure and private.

Highlights
  • AI-powered cycle predictions
  • Symptom and activity logging
  • Conception and pregnancy modes
  • Customizable reminders
  • Cycle insights and statistics
  • AI chat assistant
  • Secure and private data
Features
Read full description

Your cycle, predicted by AI — up to 12 months ahead. Lunation uses machine learning trained on your unique patterns to forecast periods, ovulation, and fertile windows with increasing accuracy. Track 75+ symptoms, moods, and activities to unlock deeper insights into your body. ◆ AI-POWERED PREDICTIONS Log your cycle and Lunation learns your rhythm. Get period and ovulation forecasts for up to 12 months — free for 3 months, then with Lunation Gold. ◆ OVULATION & FERTILITY Identify your fertile window with precision. Conception Mode highlights your best days and tracks key fertility signals. ◆ PREGNANCY MODE Switch to week-by-week pregnancy tracking with fetal development milestones, size comparisons, and personalized guidance. ◆ 75+ SYMPTOMS & ACTIVITIES Track cramps, mood, energy, sleep, skin, cravings, and dozens more. See patterns emerge across cycles with visual analytics. ◆ SMART REMINDERS Set custom reminders for upcoming periods, pills, or fertile days. Notifications are discreet — only you know what they mean. ◆ CYCLE ANALYTICS Visualize trends across cycles. Understand your average cycle length, luteal phase, and how symptoms correlate with your cycle phases. ◆ AI CHAT ASSISTANT Ask questions about your cycle, symptoms, or reproductive health and get personalized, instant guidance. Trusted by women in 18 languages worldwide. Download Lunation and let AI do the guessing — so you don't have to. Privacy Policy: https://lunation.me/privacy Terms of Use: https://lunation.me/terms

About

swiftCal AI Calorie Estimation

Read full description

Introducing swiftCal, your all-in-one calorie tracking companion powered by cutting-edge AI. Simply snap a photo of your meal, and let swiftCal instantly estimate the calories, macros, and nutritional breakdown.  Whether you’re aiming for weight loss, maintaining a healthy diet, or just curious about your daily intake, swiftCal makes nutrition tracking swift and effortless. Key Features: - AI-Powered Food Recognition: Capture meals with your camera and receive instant calorie and nutritional estimates. - Social Media Share: Easily share your taken snaps via Instagram/WhatsApp/TikTok/SnapChat! - Food Diary: Effortlessly share an overview of today's meals! - Easy Meal Logging: Quickly add meals and snacks, with a user-friendly interface designed for busy lifestyles. - Daily Insights & Trends: View detailed charts and reports to help you stay on track with your fitness goals. - Personalized Goals: Set calorie targets and receive tips tailored to your dietary needs. - Integrated Social Sharing: Share your progress with friends or on social media. - Privacy Focused: Your data stays on your device. Join plenty of users who trust swiftCal for accurate, quick, and hassle-free calorie tracking. Download swiftCal today and start making smarter food choices effortlessly.

Screenshots

Period Cycle Tracker Lunation4 screens
swiftCal AI Calorie Estimation4 screens

Verdict

The call

Period Cycle Tracker Lunation and swiftCal AI Calorie Estimation are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Period Cycle Tracker Lunation sells 11 in-app purchases, starting at $2.99 per 7 days and swiftCal AI Calorie Estimation sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Period Cycle Tracker Lunation ships an update every 9 days, swiftCal AI Calorie Estimation every 5 days. The most recent releases landed on September 17, 2026 and August 29, 2026 respectively.

ScorecardNo meaningful differences
Period Cycle Tracker Lunation versus swiftCal AI Calorie Estimation: the parameters behind the verdict, then further details
ParameterPeriod Cycle Tracker LunationswiftCal AI Calorie Estimation
PriceFreeFree
Rating4.6 (105 ratings) — better
Positive reviews50.0% of reviews
Number of ratings105 — better
Update frequencyEvery 9 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases
DevicesiPhoneiPhone
Requires iOS18.617 — better
Further details — not scored
Size90 MB49 MB
Age rating12+4+
DeveloperHoldone Software SRLAlper Beser

In-app purchases

11 purchases

Period Cycle Tracker Lunation

Subscriptions10
  • Lunation Gold Weekly$2.997 Days
  • Lunation Gold Monthyl$6.991 Month
  • Lunation Plus Monthly3 Days trial$9.991 Month
Show 7 more
  • Lunation Start1 Month trial2 variants$9.991 Month
  • Lunation Plus1 Month trial$9.991 Month
  • Lunation Support$19.991 Year
  • Secret Discount$19.991 Year
  • Lunation Gold$49.991 Year
  • Lunation Plus Yearly7 Days trial$49.991 Year
  • Lunation Start Yearly1 Year trial3 variants$49.991 Year
One-time1
  • Lifetime Gold$39.99
3 purchases

swiftCal AI Calorie Estimation

Subscriptions3
  • swiftCal 1 Month Subscription3 Days trial$2.991 Month
  • swiftCal 6 Months Subscription3 Days trial$14.996 Months
  • swiftCal Yearly Subscription3 Days trial$19.991 Year

Questions

Is Period Cycle Tracker Lunation free?
Period Cycle Tracker Lunation is free to download, with in-app purchases available.
Is swiftCal AI Calorie Estimation free?
swiftCal AI Calorie Estimation is free to download, with in-app purchases available.
Do Period Cycle Tracker Lunation or swiftCal AI Calorie Estimation have ads?
Neither Period Cycle Tracker Lunation nor swiftCal AI Calorie Estimation shows ads.
Which is updated more often, Period Cycle Tracker Lunation or swiftCal AI Calorie Estimation?
Period Cycle Tracker Lunation ships an update every 9 days, and swiftCal AI Calorie Estimation every 5 days. Most recently, Period Cycle Tracker Lunation was updated on September 17, 2026 and swiftCal AI Calorie Estimation on August 29, 2026.

Other comparisons