kegg vs Fit Flex Pass
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
kegg
This medical-grade device offers accurate fertility tracking by analyzing cervical fluid in just two minutes daily. It helps identify fertile windows for conception and provides insights into ovulation, while also offering guided pelvic floor exercises for health and recovery.
- Medical-grade fertility tracking
- Cervical fluid analysis
- Fertile window identification
- Ovulation probability insights
- Guided kegel exercises
- Pelvic floor health optimization
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Meet kegg® - a medical-grade fertility tracking device that gives you accurate and personalized fertility tracking through cervical fluid in just 2 minutes a day. Clinically validated fertility monitor Constructed of medical-grade silicone, kegg uses advanced sensing technology to detect the dynamic shifts in your fertility. Track Your Key Fertility Metric Maximize your chances of pregnancy by accurately detecting fertile versus non fertile cervical mucus so you can time your efforts with precision. Daily Fertility Insights Your Fertility and Cervical Mucus Score helps you identify your most fertile days, while the ovulation probability helps you see when ovulation may occur. Guided Kegel Exercises Optimize your pelvic floor health for labor and postpartum recovery using kegg’s kegel routines. CONNECT WITH KEGG: + Web:http://www.kegg.tech/ + Facebook: @kegg.tech + Instagram: @kegg_tech + Private community: https://www.facebook.com/groups/keggcommunity/ GET HELP: If you have any questions about the kegg device or the kegg app, read our FAQ at https://kegg.tech/faq or message us at www.kegg.tech/support
Fit Flex Pass
Access independent gyms and book personal trainers without long-term commitments. Purchase one-time passes for day, week, or month access, or book single or pack sessions with trainers. Your account works nationwide, offering flexibility for travel.
- Buy gym day, week, or month passes
- Book sessions with personal trainers
- One-time purchases, no renewals
- Nationwide account access for travel
- QR code for gym check-in
- Discounted trainer session packs
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Fit Flex Pass is the simplest way to work out on your own terms. Buy a day, week, or month pass at an independent gym near you, or book sessions with an independent personal trainer. Every purchase is one-time. Nothing renews. Nothing to cancel. HOW IT WORKS Find a gym or trainer on the map, buy a pass in a couple of taps, and your QR code is active immediately. Show it at the front desk, they scan it, you're in. GYM PASSES Day, week, and month passes at independent gyms. Day passes expire at midnight. Week and month passes start counting from your first check-in. PERSONAL TRAINERS Book a single session or a discounted 5- or 10-session pack with an independent coach. No gym membership required. Packs run down as you use them rather than expiring on a clock. TRAVELING Your account works at every gym in the network, so a trip doesn't mean losing a week of training or paying for a membership you won't use. FOR GYM OWNERS AND TRAINERS List for free and keep 85% of every pass sold. Scan member passes, manage pricing, and track earnings and payouts from the same app. Fit Flex Pass is a marketplace. Gyms and trainers are independent businesses responsible for their own facilities and services.
Screenshots
Verdict
The clearest difference is rating: Fit Flex Pass at 5.0 against kegg's 3.9. Fit Flex Pass also leads on monetization model (free vs paid). kegg's advantage is ratings volume (142 vs 2). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Fit Flex Pass holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: kegg has 142 ratings behind it against 2, so its average is the more settled of the two.
kegg ships an update every 3 weeks, Fit Flex Pass every 2 weeks. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.
| Parameter | kegg | Fit Flex Pass |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (142 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 75.2% of reviews | — |
| Number of ratings | 142 — better | 2 |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 52 MB | 46 MB |
| Age rating | 12+ | 4+ |
| Developer | Lady Technologies, Inc. | Anthony Idi |
Customer experience
kegg
Fit Flex Pass
Bugs and requests
kegg
Reported bugs
4 issues- App freezes and crashes frequently
- Syncing issues between device and app
- Fertility predictions do not align with other methods
- Constant logout prompts disrupt user experience
Requested features
4 requests- Add ability to track period and symptoms
- Improve app design and user experience
- Provide more detailed data analysis and insights
- Integrate with other fertility tracking apps
Fit Flex Pass
Not enough reviews yet to summarise bugs or requests.
In-app purchases
kegg
No in-app purchases
Fit Flex Pass
No in-app purchases
Questions
Is kegg free?
Is Fit Flex Pass free?
Which has better reviews, kegg or Fit Flex Pass?
Do kegg or Fit Flex Pass have ads?
Which is updated more often, kegg or Fit Flex Pass?
Other comparisons
