Comparison

SlackLess vs Polyphasic Sleep

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

Head to head
About

SlackLess

Read full description

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.

About

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.

Highlights
  • 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.)
Features
Read full description

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

SlackLess4 screens
Polyphasic Sleep4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

SlackLess ships an update every 10 months, Polyphasic Sleep weekly. The most recent releases landed on October 11, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 7 level
SlackLess versus Polyphasic Sleep: the parameters behind the verdict, then further details
ParameterSlackLessPolyphasic Sleep
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 10 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhoneiPhone, iPad — better
Requires iOS16.6 — better17.6
Further details — not scored
Size131 MB66 MB
Age rating4+4+
DeveloperDaniyar KurmanbayevSALIM TANER CELIK

In-app purchases

None

SlackLess

No in-app purchases

5 purchases

Polyphasic Sleep

Subscriptions4
  • PolyNap Premium Weekly$4.997 Days
  • PolyNap Premium Monthly3 Days trial$8.991 Month
  • Premium Annual Discount$24.991 Year
Show 1 more
  • PolyNap Premium Yearly3 Days trial$34.991 Year
One-time1
  • PolyNap Premium Lifetime$99.99

Questions

Is SlackLess free?
SlackLess is free to download, with no in-app purchases.
Is Polyphasic Sleep free?
Polyphasic Sleep is free to download, with in-app purchases available.
Do SlackLess or Polyphasic Sleep have ads?
Neither SlackLess nor Polyphasic Sleep shows ads.
Which is updated more often, SlackLess or Polyphasic Sleep?
SlackLess ships an update every 10 months, and Polyphasic Sleep weekly. Most recently, SlackLess was updated on October 11, 2026 and Polyphasic Sleep on October 6, 2026.

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