Comparison

Blue Hour vs Kept

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

Head to head
About

Blue Hour

Features
Read full description

Blue Hour turns time into light: a sun sinks toward the horizon as your timer runs, so you can feel how much is left without reading a number. Built kindly for ADHD and time-blindness, calm enough for classrooms and kids. No account, no ads, no streaks. Free forever, with a tip jar in Settings. RAISE THE SUN Drag the sun up to set your time, one minute to three hours, with soft detents you can feel. Prefer numbers? Tap the readout for a keypad. Three preset chips keep your rituals one tap away. THE SETTLING DUSK As the last light falls, the sky deepens and the screen dims a few gentle stops. At zero: two slow breaths of glow, a soft haptic, and an optional two-note chime. No alarm slam. Ever. THE LIGHT FOLLOWS YOU A Live Activity keeps the sinking sun on your Lock Screen and in the Dynamic Island. An optional nudge can tell you when time is up, even if you have looked away. Off by default. CYCLES, GENTLY Pomodoro in Blue Hour's language: work while the sun sets, then the break is a sunrise. The sky returns to morning, and the next round starts when you do. Rounds are counted in little suns, never quotas. START FROM ANYWHERE A Home Screen widget starts your usual timer in one tap. Siri and Shortcuts can start, pause, and resume without opening the app. FOR CLASSROOMS One tap opens the big display: a wall-sized countdown calm enough for a whole room, with a classroom preset set from one to twenty minutes. A QUIET LINE EACH DAWN Every day the idle sky carries one line from 412 public-domain quotations. Seneca, Thoreau, Lao Tzu, old proverbs. One per day. No feed, no push, no hustle. CALM BY CONSTRUCTION • Optional halfway and final-minute cues • Keeps the screen awake while the light falls, if you want • Wall-clock accurate: background it, come back, the light agrees • VoiceOver, Reduced Motion, and Dynamic Type are first-class FREE FOREVER Every feature, free. No premium tier, no subscription. If Blue Hour earns a place on your Home Screen, there is a tip jar in Settings. It unlocks nothing. PRIVATE BY ARCHITECTURE No account. No analytics. No tracking. Blue Hour makes zero network calls, and its App Store privacy label is "Data Not Collected," the rare kind that means exactly what it says. The light keeps track for you.

About

Kept

Features
Read full description

Your links should be easy to save and easy to find. Kept is a private, beautifully simple link library that keeps everything on your device. No account, no ads, no tracking. SAVE IN SECONDS Add a URL, title, and note. Kept automatically groups related links from the same domain and warns you about duplicates. FIND ANYTHING Search by title, URL, or note. Mark favorites, expand related links, and sort your library the way you want. USE IT YOUR WAY • Copy any link with one tap and see how often you use it • Edit links and notes whenever you need • Swipe to delete • Import bookmarks from Safari or Chrome • Export your library and create local backups • Choose light or dark mode PRIVATE BY DESIGN Your library is stored locally on your device. Kept doesn't require an account and doesn't collect or track your data. Small links. Big memories.

Screenshots

Blue Hour4 screens
Kept4 screens

Verdict

The call

The clearest difference is in-app purchases: Kept at none against Blue Hour's 3. Kept also leads on iOS requirement (15.0 vs 26.0). On price, ads and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Blue Hour sells 3 one-off in-app purchases. Kept asks for nothing beyond the download.

Scorecard2 real differences Ā· 4 level
Blue Hour versus Kept: the parameters behind the verdict, then further details
ParameterBlue HourKept
PriceFreeFree
Update frequency—Every 3 weeks
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.0 — better
Further details — not scored
Size3 MB32 MB
Age rating4+4+
DeveloperMoses SmithALEXANDRU DANCAU

In-app purchases

3 purchases

Blue Hour

One-time3
  • Coffee$1.99
  • Lunch$4.99
  • Legend$9.99
None

Kept

No in-app purchases

Questions

Is Blue Hour free?
Blue Hour is free to download, with in-app purchases available.
Is Kept free?
Kept is free to download, with no in-app purchases.
Do Blue Hour or Kept have ads?
Neither Blue Hour nor Kept shows ads.

Other comparisons