Comparison

Cycle Sync Workouts vs Kelva

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

Head to head
About

Cycle Sync Workouts

This app adapts your training to your menstrual cycle, offering personalized workouts based on your phase and how you feel. It tracks your cycle, symptoms, and provides phase-specific exercise recommendations for natural progress without burnout.

Highlights
  • Menstrual cycle tracking
  • Personalized workout templates
  • Comprehensive symptom tracking
  • Cycle-based smart workouts
  • Phase-specific training guidance
Features
Read full description

Your hormones affect everything — your mood, your energy, your strength. DROP IT is the first training app designed for women that auto-regulates your workouts based on your menstrual cycle and daily biofeedback. No rigid calendar rules. Just smart science that adapts to your body. Your body isn’t the same every day. Your training shouldn’t be either. DROP IT combines an elegant, minimalist cycle tracker with Siena, your personal AI-powered cycle and fitness coach. Together, they adjust workout intensity, volume, weights, and rest periods based on your cycle phase recovery thresholds and how you feel. No burnout. No plateaus. Just progress that flows with your life. What’s included: · Daily Biofeedback & Readiness Score Log your sleep, energy, mood, and localized muscle soreness to calculate your daily Readiness Score (0-100). The app calibrates hormonal overrides (like estrogen surges or active periods) to assess your Central Nervous System recovery accurately. · Adaptive Workout Recommended Sessions Receive a daily workout recommendation that automatically scales to your recovery state. The app applies scientific volume caps (limiting set volume to prevent fatigue), scales recommended loads using Reps-in-Reserve (RIR) safety buffers, and automatically adjusts rest timers. · Meet Siena: Your AI Cycle & Training Assistant Chat with Siena in a safe, private space to get instant, personalized guidance about your current phase, symptoms, and nutrition. Think of it as a context-aware health and training coach in your pocket. · Agentic Workout Generator & Customization Ask Siena to generate a complete workout template from scratch or modify your existing routines on the fly. Siena automatically scales sets, reps, and loads based on your cycle phase fatigue and recovery capacity. · Frictionless Workout Tracking Log your workouts with ease using our brand-new, distraction-free training interface. Access preview cards, a central workout hub, detailed set-by-set logging, and automated rest timers. · Personalized Workout Templates Create your own workout routines or use our phase-based templates. Build training plans that adapt to your cycle and save them for future use. Your cycle, respected: · MENSTRUAL: Manage active fatigue, track iron levels, and adapt load to symptom severity. · FOLLICULAR: Estrogen returns. High recovery capacity — time to build and increase volume. · OVULATORY: Peak force potential. Leverage strength with auto-regulated joint-safety checks. · LUTEAL: Manage systemic fatigue, increase rest intervals, and utilize adaptive volume caps. This isn’t just a gym app. It’s a new standard for women who train. Auto-regulated training has been shown to improve performance markers by up to 13.9% compared to traditional, rigid routines. Download DROP IT and start syncing your strength. Terms of Use: https://www.dropitcycle.com/terms-conditions Privacy Policy: https://www.dropitcycle.com/privacy-policy Support: administracion@grimworks.es Subscription pricing and terms: Payment will be charged to your Apple ID account upon confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings. DROP IT will never sell or share your health data. You are always in control.

About

Kelva

Features
Read full description

Kelva is a training app for women: a plan that stays put, and someone who guides you through every session, set by set. YOUR WEEK A few questions about your goal, your level, your training days and where you train: at the gym, at home with dumbbells, or with no equipment at all. From that Kelva builds your week out of a hand-curated exercise catalogue, with a glutes focus if you want one. After that it is yours: drag the blocks, move the days, put sessions together yourself. YOUR PLAN STAYS PUT Progress comes from consistency and progressive overload, not from a programme reshuffled every week. Kelva does not rebuild your plan behind your back. If a day does not suit you, tell Kelva and the session moves to your next training day. On a rest day you can bring the next session forward to today. Both apply to this week only. GUIDED THROUGH EVERY SESSION Before each exercise Kelva shows you how it is done. Then comes the set with its target, one tap on "Set done", and the rest counts down, as do holds and the warm-up. At the end you see how far your week has come. If you like, Kelva reminds you at the start time of every session, and the widget shows the next one with a countdown. 150 EXERCISES, EACH AS A CLIP Every exercise shows an animated clay figure doing it. With it: the instructions step by step, the muscles, the equipment, and where there is one, a substitute and an easier version. ASK KELVA Kelva sits in the bottom right corner. Tap a topic or type her a question: what today asks of you, how an exercise is done, what to do instead. When you say yes, she moves, shortens or swaps today's session. She also tells you what she does not say. No supplements, no diagnosis, nothing on pregnancy or menopause, no medication. If something hurts, she points you to someone who can judge it. ADD WHAT YOU NEED Training is always in. The rest you switch on or leave out: • Cooking and shopping: more than 680 dishes with recipes, matched to how you eat, planned as a week, with a shopping list • Calories: photograph your plate and Kelva estimates its calories and nutrients, measured against your daily target • Period: cycle day, estimated phase and next period, from what you enter or from Apple Health • Friends: someone in it with you ABOUT THE CYCLE, HONESTLY We do not tell you to train differently in a particular phase. The evidence does not support it: a 2023 systematic review found no influence of cycle phase on strength performance or on training adaptation. So your phase never changes your training. A FRIEND IN IT WITH YOU Link up with a code, a QR code or phone to phone. She sees how many sessions you completed each week, and your streak and training week only if you switch them on. Never your cycle, never what or how heavy you trained. YOUR CYCLE STAYS ON YOUR DEVICE Your cycle is stored and calculated on your iPhone, not sent to our server and not passed on: there simply is no endpoint for it. Kelva only ever reads your cycle, and we never write anything back to Apple Health. A question you type to Kelva and a photo you scan go through our server to an AI model, without your name and without your cycle, and are not stored by us. KELVA PLUS With Plus, Kelva changes today's session herself instead of asking first, if you allow her to. Along with your full history, your sessions in a calendar of their own, and meal scans without a limit (three without Plus). Kelva Plus is an auto-renewing subscription, monthly or yearly. It renews unless you turn it off in your App Store settings at least 24 hours before the period ends. Purchases can be restored in the app. Requires an iPhone on iOS 16.4 or later; the widget needs iOS 17. Privacy Policy and Terms of Use https://kelva.space/privacy https://kelva.space/terms

Screenshots

Cycle Sync Workouts4 screens
Kelva4 screens

Verdict

The call

The clearest difference is iOS requirement: Kelva at 16.4 against Cycle Sync Workouts's 26.0. On price, update cadence, ads and in-app purchases 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. Cycle Sync Workouts sells 3 in-app purchases, starting at $3.99 per 7 days and Kelva sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Cycle Sync Workouts ships an update every 5 days, Kelva every 10 days. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

Scorecard1 real difference · 9 level
Cycle Sync Workouts versus Kelva: the parameters behind the verdict, then further details
ParameterCycle Sync WorkoutsKelva
PriceFreeFree
Rating3.8 (10 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings10 — better—
Update frequencyEvery 5 days — betterEvery 10 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS26.016.4 — better
Further details — not scored
Size249 MB77 MB
Age rating4+4+
DeveloperGrim Works Sociedad LimitadaAlain Kessler

In-app purchases

3 purchases

Cycle Sync Workouts

Subscriptions3
  • Premium Weekly$3.997 Days
  • Premium Monthly$9.991 Month
  • Premium Annual1 Month trial$44.991 Year
3 purchases

Kelva

Subscriptions3
  • Kelva Monthly$4.991 Month
  • Kelva Yearly1 Year trial$29.991 Year
  • Kelva Yearly$29.991 Year

Questions

Is Cycle Sync Workouts free?
Cycle Sync Workouts is free to download, with in-app purchases available.
Is Kelva free?
Kelva is free to download, with in-app purchases available.
Do Cycle Sync Workouts or Kelva have ads?
Neither Cycle Sync Workouts nor Kelva shows ads.
Which is updated more often, Cycle Sync Workouts or Kelva?
Cycle Sync Workouts ships an update every 5 days, and Kelva every 10 days. Most recently, Cycle Sync Workouts was updated on October 30, 2026 and Kelva on October 29, 2026.

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