Comparison

Bathsleep vs Serene Timer

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

Head to head
About

Bathsleep

Transform your iPhone into a customizable bath and sleep light with integrated music playback. Enhance relaxation, reduce stress, and improve sleep quality with ambient lighting and specialized soundscapes.

Highlights
  • Bath and sleep light illumination
  • Integrated music player
  • OFURO DSP natural sound system
  • Multi-device sound and light synchronization
  • Customizable colors and transition speeds
  • Clock display option
Read full description

Bathsleep - Sleep Support from Bath to Bed - Today, iPhone Becomes the Bath Light. -- Key function -- ・Bath / Sleep Light Illumination ・Music Player ・Natural DSP sound system called 'OFURO DSP'. ・Multi lights / Multi speakers collaborate sound and light with multiple iPhones. -- Effect -- ・Give you happy bath time ・Relaxation ・Fatigue recovery ・Healing ・Assist meditation ・Stress relief ・Upgrades the sound of the speakers. ・Sleep assistant ・Night music -- How to Use -- 【Main Screen】 ・Bottom right button for app settings. ・Bottom left button to select song. ・Upper left button to connect other devices for multi lights / multi speakers. ・You can choose showing clock or not. If you mind time, it's a good option. 【Light Illumination】 ・Favorite colors and transition speed can be controlled. ・The scratch cover film on the display may become light darken especially for fingerprint prevention or privacy safe type. Luster type is recommended. 【Step for Bath Light】 1. Ensure the water resistance of the device. 2. Launch this app. 3. Turn off Bathroom light. 4. Play your favorite music. 5. Put device where avoiding water splash. 6. Take bath, start relaxing. ・Put device with facing up at the corner of the bathroom and reflect backlight to two walls. Light diffuses very nice. ・Sound breaks when water intrudes into the speaker. ・Please use a waterproof case when using with equipment not water resistance construction. In addition, even if the equipment is water resistance, do not use beyond water resistance grade guaranteed by equipment (such as sinking in a bathtub). 【Step for Sleep Light】 1. Play your favorite music. 2. Turn off Bedroom light. ・BGM can play not only with illumination on but also off (while device sleeps in background). 【Music Player】 ・Support 3D Touch on home screen icon to stop music. ・Music to be played needs to be downloaded to the device. 【OFURO DSP】 1. Turn on Switch. 2. Adjust iPhone device volume. 3. Adjust the BASS or GAIN if sound is distorted (BASS is primary). ・Switch on to balance iPhone's speakers sound quality. ・Guitar amp like operation. ・Gain (volume) ・Easy 3 bands equalizer. ・Reverb ・2 flavors for the living / bed room or bath room. Flavor can be switched by device shake motion. ・By using stereophonic technology, even if iPhone is set in face up, sound direction is adjusted to you where lying in the bathtub. (Stereo speaker models only.) ・Please refer the support page for details. 【Multi lights / Multi speakers】 ・A device can connect and link with other devices that installed this application via Wi-Fi. ・Choose one parent device, then connect the child devices to the parent device. ・Please refer support page for details. (Multi lights) ・Changes in the illumination of the child devices are linked with the parent device. It is very beautiful because all the connected devices light in unified color. (Multi speakers) ・When parent device play music, child devices join to play. ・EQ, Pan, Time difference can be controlled by mixer in the parent device. (How to connect) ・Tap upper left button of the illumination screen, then select 'Become parent device' or 'Become child device' and connect (automatic connection can be chosen from next time). ・The illumination changes will synchronize with the parent device after connecting. -- Attention -- ・Developer of this application does not take any responsibility for submerge or any accident, any loss and so on. ・Your use of this application is at your sole risk. ・BGM is not included in this app. Be with your favorite sound or music!

About

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.

Highlights
  • Gradually increasing sound volume
  • Gentle wake-up experience
  • Supports meditation and naps
  • Calm and tranquil soundscapes
  • No harsh tones or jolts
Read full description

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.

Screenshots

Bathsleep4 screens
Serene Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Serene Timer at none against Bathsleep's 1. Serene Timer also leads on review sentiment (100% vs 84%). Bathsleep's advantage is update cadence (every 2 months vs every 7 months) and device support (3 vs 1). On price, rating, ratings volume and ads 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. Bathsleep sells 1 one-off in-app purchase. Serene Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Bathsleep against 5.0 for Serene Timer. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews are what separate them: 84% of Bathsleep's written reviews are positive against 100% of Serene Timer's.

UpkeepUpdate frequency

Bathsleep ships an update every 2 months, Serene Timer every 7 months. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

Scorecard5 real differences · 5 level
Bathsleep versus Serene Timer: the parameters behind the verdict, then further details
ParameterBathsleepSerene Timer
PriceFreeFree
Rating5.0 (4 ratings)5.0 (2 ratings)
Positive reviews84.2% of reviews100.0% of reviews — better
Number of ratings4 — better2
Update frequencyEvery 2 months — betterEvery 7 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better17.5
Further details — not scored
Size21 MB35 MB
Age rating4+4+
Developermapipo officeSebastian Ruhleder

Customer experience

Bathsleep

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews19 reviews
Positive84.2%
Neutral5.3%
Negative10.5%

Serene Timer

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Bathsleep

One-time1
  • OFURO DSPFree
None

Serene Timer

No in-app purchases

Questions

Is Bathsleep free?
Bathsleep is free to download, with in-app purchases available.
Is Serene Timer free?
Serene Timer is free to download, with no in-app purchases.
Which has better reviews, Bathsleep or Serene Timer?
Bathsleep and Serene Timer are both rated 5.0 out of 5 on the App Store, from 4 and 2 ratings respectively.
Do Bathsleep or Serene Timer have ads?
Neither Bathsleep nor Serene Timer shows ads.
Which is updated more often, Bathsleep or Serene Timer?
Bathsleep ships an update every 2 months, and Serene Timer every 7 months. Most recently, Bathsleep was updated on October 8, 2026 and Serene Timer on October 6, 2026.

Other comparisons