NightFlow vs Solen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NightFlow
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NightFlow is a powerful sleep tracker and sleep monitoring app designed to help you understand and improve your sleep quality. It works as an advanced sleep app that records your sleep patterns, tracks sleep cycles, and analyzes your overall sleep performance. Whether you want to fall asleep faster, improve deep sleep, or build a better sleep schedule, NightFlow combines sleep tracking, sleep recording, and sleep analysis in one complete solution. It also helps users monitor sleep sounds during the night, including snoring and sleep talking, making it a full sleep recorder and sleep monitor experience. With NightFlow, you can also access a wide range of relaxing sleep sounds designed to help you sleep better and reduce stress. The app includes calming white noise, pink noise, ocean waves, and deep sleep sounds to support faster sleep onset and better sleep quality. It also functions as a sleep alarm and sleep timer, helping you wake up naturally based on your sleep cycle. NightFlow is built for users who want better sleep, improved sleep tracking, and a simple way to monitor and optimize their nightly rest. Features: Sleep Tracker & Sleep Monitoring Track your sleep cycles, sleep duration, and sleep quality with advanced sleep tracking technology. Monitor your sleep patterns and improve your sleep habits over time. Sleep Sounds & White Noise Library Relax and fall asleep faster with sleep sounds including white noise, pink noise, ocean waves, and deep sleep sounds designed for better sleep quality. Snore Recorder & Sleep Talk Tracking Record snoring and sleep talking during the night with smart sleep recorder technology. Understand nighttime disturbances and improve sleep health. Sleep Analysis & Sleep Score Get a detailed sleep analysis with sleep score insights, showing how well you slept and what affects your sleep quality. Sleep Alarm for Heavy Sleepers Wake up at the right time with a smart sleep alarm designed for heavy sleepers and optimized sleep cycles. Sleep Schedule & Bedtime Tracking Build a consistent sleep schedule and improve sleep routine with bedtime reminders and sleep tracking insights. Deep Sleep & Sleep Cycle Tracking Analyze deep sleep, light sleep, and REM stages to understand your sleep cycle and improve overall sleep quality. Sleep Aid & Relaxation Tools Reduce stress and fall asleep faster with guided sleep aid tools and calming sleep sounds. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Solen
Track perimenopause symptoms like hot flashes and anxiety daily. Identify personal triggers and test interventions to see what genuinely helps you feel better. Generate reports for your doctor with your logged data.
- Log 13 symptoms in seconds
- Map personal symptom triggers
- Test interventions over 14 days
- Generate doctor reports
- Ask questions based on your log
- Widget and Lock Screen logging
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Track your perimenopause symptoms in ten seconds a day, and test what actually helps. For you, not for women in general. Solen never asks for your last period date. Perimenopause is the stage where the cycle stops keeping time, so Solen works from the one thing that is still true every day: how you feel. BUILT FOR PERIMENOPAUSE Not a period app with a mode. Solen starts from your symptoms: hot flashes, night sweats, sleep, anxiety, brain fog, and eight more, each graded from none to a lot. No forecasts, no scores, no cycle math. Just your days, measured. MAP YOUR TRIGGERS After a couple of weeks of logs, Solen shows what clusters with your worst days: alcohol, short sleep, caffeine, stress. It reads "higher on days with", never "caused by", because two weeks of data is a lead, not a verdict. Solen says so on the screen. TEST WHAT HELPS IN 14 DAYS Pick one change: cutting evening alcohol, earlier nights, a daily walk. Solen takes your baseline from logs you already have, runs 14 days, and shows the result as your raw daily chart, noisy days included. The verdict stays honest: "Looks milder during this period." Each finished experiment joins your personal list of what works for you. LOG 13 SYMPTOMS IN TEN SECONDS Severity chips, zero to three, from the widget or your Lock Screen without opening the app. Mood, sleep, and a note if you want. Ten seconds on a bad day is the whole ask. BRING YOUR DOCTOR THE NUMBERS A report built from your log: which symptoms, how often, how severe, what you have tried. It states its own coverage, "you logged on 46 of 91 days", and days you skipped are never counted as zero. QUESTIONS? ASK YOUR LOG Ask why last week was rough. Answers come from your own log, not from the internet, and Solen tells you when your data is too thin to say. It is not medical advice, and it says that too. WHAT SOLEN WILL NOT DO No period predictions. No symptom forecasts. No scores out of 100. No "women like you" percentages. Guessing dressed up as precision helps nobody, so Solen measures instead. Solen Pro is a subscription: $39.99 per year with a 7-day free trial, or $9.99 per month. Prices may vary by region. Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store settings. Privacy policy: https://joinsolen.com/privacy Terms of use: https://joinsolen.com/terms
Screenshots
Verdict
The clearest difference is ads: NightFlow at none against Solen's shown. On price, in-app purchases, device support and iOS requirement 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. NightFlow sells 3 in-app purchases, starting at $0.99 per month and Solen sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | NightFlow | Solen |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 4 days |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 142 MB | 74 MB |
| Age rating | 4+ | 12+ |
| Developer | FlyWork Ventures | Troiva LLC |
In-app purchases
NightFlow
- NightFlow Premium$0.991 Month
- Nightflow Premium$1.991 Month
- Nightflow Premium$9.991 Year
Solen
- Solen Pro Monthly$9.991 Month
- Solen Pro Annual7 Days trial$39.991 Year









