SlackLess vs Polyphasic Sleep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SlackLess
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SlackLess is an app that provides dashboards for tracking usage of your most distracting apps and helps you reduce your screen time by setting limits.
Polyphasic Sleep
This app guides users through adopting and maintaining polyphasic sleep schedules. It offers personalized recommendations, smart alarms, and progress tracking to help users gain more control over their time and build consistent sleep routines.
- Personalized sleep schedule recommendations
- Multiple polyphasic sleep schedule exploration
- Smart alarms and nap reminders
- Progress tracking for adaptation and consistency
- Routine-building feedback
- Explore various sleep cycles (Everyman, Uberman, etc.)
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PolyNap helps you choose, follow, and adapt to a polyphasic sleep schedule without guesswork. Get a personalized recommendation, plan every sleep block with clarity, wake up on time with smart alarms, and track your progress over time. Whether you're exploring Everyman, Uberman, Biphasic, segmented sleep, or a siesta routine, PolyNap gives you the structure you need to stay consistent. With PolyNap, you can: - Get a personalized sleep schedule based on your goals, routine, and sleep experience - Explore multiple polyphasic sleep schedules and compare total sleep time - Follow clear core sleep and nap blocks throughout your day - Use smart alarms and nap reminders to stay on time - Track adaptation, consistency, adherence, and time gained - Stay motivated with Nimmy, progress milestones, and routine-building feedback PolyNap is built for people who want more control over their time, a more intentional sleep routine, and a more practical way to approach polyphasic sleep. If you want a sleep app that does more than passive tracking, PolyNap helps you actually build and maintain a schedule.
Screenshots
Verdict
The clearest difference is in-app purchases: SlackLess at none against Polyphasic Sleep's 5. Polyphasic Sleep's advantage is update cadence (weekly vs every 10 months). On price, ads, 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. Polyphasic Sleep sells 5 in-app purchases, starting at $4.99 per 7 days. SlackLess asks for nothing beyond the download.
SlackLess ships an update every 10 months, Polyphasic Sleep weekly. The most recent releases landed on October 11, 2026 and October 6, 2026 respectively.
| Parameter | SlackLess | Polyphasic Sleep |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 10 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 131 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniyar Kurmanbayev | SALIM TANER CELIK |
In-app purchases
SlackLess
No in-app purchases
Polyphasic Sleep
- PolyNap Premium Weekly$4.997 Days
- PolyNap Premium Monthly3 Days trial$8.991 Month
- Premium Annual Discount$24.991 Year
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- PolyNap Premium Yearly3 Days trial$34.991 Year
- PolyNap Premium Lifetime$99.99









