Comparison

Neckle vs Flow Fasting Tracker

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

Head to head
About

Neckle

Features
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Neckle is an app that allows anyone to easily perform neck exercises. Put on your AirPods and just follow the voice guide to perform neck exercises.

About

Flow Fasting Tracker

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Your cycle changes everything. Most fasting apps ignore it. Estrogen, progesterone and testosterone each shift your metabolism, energy and hunger differently across your cycle. Flow Fasting tracks where you are and guides your fasting practice around it, so you always know the right window for your phase, and why it works. Whether you struggle to fast during your luteal phase, feel unstoppable in follicular, or want to understand why your results change week to week - Flow Fasting gives you a science-backed approach for every phase of your cycle. FIVE PHASES. FIVE DIFFERENT FASTING STRATEGIES. Bleed: Rest and restore. Shorter windows, nourishing breaks. Follicular: Your peak window. Longer fasts, stronger results. Ovulatory: High energy. Maintain momentum and protect your gains. Early Luteal: Shift with your hormones. Moderate and consistent. Late Luteal: Listen to your body. Gentle windows, no force. WHAT'S INSIDE: Phase-synced fasting windows Fasting recommendations that adapt to your cycle every day. Built around your phase, your goals and your rhythm. Fasting timer A clean, focused timer with real-time milestone markers at 14, 16 and 24 hours. Know exactly where you are in your fast and what your body is doing. Cycle insights Charts that connect your fasts, weight and steps over time. Spot your patterns, track your progress and understand how your cycle shapes your results. Daily log Track weight, steps, symptoms, energy, mood and sleep every day. Watch your insights build as your data grows. Sync your steps from Apple Health with one tap. Toggle it on in Settings to see your activity alongside your fasting and cycle date. Phase nutrition guide What to eat in every phase of your cycle. Food directly affects how well you fast - Flow Fasting connects the two. By phase comparison See how your energy, mood, sleep and fasting performance compare across all five phases. Built from your own data over time. Week planner Plan your fasting windows ahead. Map your cycle, set your intentions and remove the daily guesswork. Science guide The research behind cycle-synced fasting. Hormones, metabolism, autophagy, cortisol and more - all explained through a cycle lens. START FREE: Try Flow Fasting free for 7 days with annual plan. Full access. After your trial, you will be charged $39.99 unless cancelled before the trial ends. Monthly plan available at $7.99 per month, billed immediately. Cancel anytime in App Store settings. For wellness purposes only. Not medical advice. Terms of use: https://flowfasting.com/terms-of-service/

Screenshots

Neckle3 screens
Flow Fasting Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: Neckle at none against Flow Fasting Tracker's 2. Flow Fasting Tracker's advantage is update cadence (every 10 days vs every 2 months) and iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Flow Fasting Tracker sells 2 in-app purchases, starting at $7.99 per month. Neckle asks for nothing beyond the download.

UpkeepUpdate frequency

Neckle ships an update every 2 months, Flow Fasting Tracker every 10 days. The most recent releases landed on November 4, 2026 and November 13, 2026 respectively.

Scorecard3 real differences Β· 3 level
Neckle versus Flow Fasting Tracker: the parameters behind the verdict, then further details
ParameterNeckleFlow Fasting Tracker
PriceFreeFree
Update frequencyEvery 2 monthsEvery 10 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS17.013.0 β€” better
Further details β€” not scored
Size2 MB16 MB
Age rating4+4+
DeveloperYune ChoKristina Kozicynaite

In-app purchases

None

Neckle

No in-app purchases

2 purchases

Flow Fasting Tracker

Subscriptions2
  • Monthly$7.991 Month
  • Annual7 Days trial$39.991 Year

Questions

Is Neckle free?
Neckle is free to download, with no in-app purchases.
Is Flow Fasting Tracker free?
Flow Fasting Tracker is free to download, with in-app purchases available.
Do Neckle or Flow Fasting Tracker have ads?
Neither Neckle nor Flow Fasting Tracker shows ads.
Which is updated more often, Neckle or Flow Fasting Tracker?
Neckle ships an update every 2 months, and Flow Fasting Tracker every 10 days. Most recently, Neckle was updated on November 4, 2026 and Flow Fasting Tracker on November 13, 2026.

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