Serene Timer vs FertilFlow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Serene Timer
This app provides a gentle and calm way to wake up or end meditation sessions. It uses sounds that gradually increase in volume, easing you into alertness without startling you. Ideal for naps and relaxation, it promotes a refreshed and centered feeling.
- Gradually increasing sound volume
- Gentle wake-up experience
- Supports meditation and naps
- Calm and tranquil soundscapes
- No harsh tones or jolts
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Tired of timers that shock you awake? Serene Timer offers a kinder, calmer way to wake up, perfect for meditation, naps, and relaxation. With sounds that gradually ramp up in volume, Serene Timer gently eases you back into alertness, leaving you refreshed and centered instead of startled. Whether you need a soft wake-up after a power nap or a gentle end to your meditation, Serene Timer is designed to support your wellness. No harsh tones, no jolts—just a smooth, tranquil rise that fits seamlessly into your routine. Discover the peaceful alternative to abrupt alarms.
FertilFlow
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FertilFlow is your personal companion during your IVF, IUI or ICSI fertility journey. Keep track of everything — from hormone levels and medication to appointments, symptoms and emotions — all in one clear and supportive place. • Track your fertility treatment journey (IVF, IUI, ICSI) • Log hormone values and view your progress over time • Manage medication schedules with reminders • Keep a private diary for emotions and symptoms • Compare previous treatment rounds • Export your fertility journey as a PDF report • Daily affirmations and mindfulness support • Available in 7 languages FertilFlow helps you stay organised, informed and supported during an intensive fertility journey. FertilFlow is not a medical device and does not provide medical diagnoses or treatment advice. Always consult your doctor or healthcare provider before making medical decisions.
Screenshots
Verdict
The clearest difference is update cadence: FertilFlow at every 3 days against Serene Timer's every 7 months. FertilFlow also leads on iOS requirement (15.1 vs 17.5). On price, ads, in-app purchases and device support 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.
Serene Timer ships an update every 7 months, FertilFlow every 3 days. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.
| Parameter | Serene Timer | FertilFlow |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 7 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.5 | 15.1 — better |
| Further details — not scored | ||
| Size | 35 MB | 48 MB |
| Age rating | 4+ | 12+ |
| Developer | Sebastian Ruhleder | Roy Wynant |
In-app purchases
Serene Timer
No in-app purchases
FertilFlow
No in-app purchases
