Comparison

Rubber Clock vs SleepLight睡前夜灯

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

Head to head
About

Rubber Clock

Design a personalized digital clock by inputting text or uploading an image. Create unique time displays, from pet-themed clocks to countdown timers for important events.

Highlights
  • Create custom digital clocks
  • Use text input for designs
  • Upload photos for clock faces
  • Design pet-themed clocks
  • Set countdown timers
  • Create bedside clocks
Features
Read full description

Initial release of Rubber Clock. Create your own digital clock by typing a sentence or uploading a favorite photo. Make a cozy pet clock, a countdown for a special day, or a relaxing bedside clock. Turn time into something that feels like yours.

About

SleepLight睡前夜灯

Features
Read full description

SleepLight is a focused bedtime utility for the last few minutes before sleep. Set a short countdown, turn on the device light when available, and let the app guide the light off when the time is over. It is designed for simple use: no account, no cloud setup, no feeds, no distractions. On devices where torch control is unavailable, SleepLight can use a bright white screen fallback. SleepLight cannot change iOS Auto-Lock settings directly. For the smoothest flow, keep the app open during the countdown and review Auto-Lock in iOS Settings if needed.

Screenshots

Rubber Clock3 screens
SleepLight睡前夜灯3 screens

Verdict

The call

The clearest difference is in-app purchases: SleepLight睡前夜灯 at none against Rubber Clock's 3. 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. Rubber Clock sells 3 one-off in-app purchases. SleepLight睡前夜灯 asks for nothing beyond the download.

Scorecard1 real difference · 8 level
Rubber Clock versus SleepLight睡前夜灯: the parameters behind the verdict, then further details
ParameterRubber ClockSleepLight睡前夜灯
PriceFreeFree
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 5 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone
Requires iOS18.417.0 — better
Further details — not scored
Size111 MB4 MB
Age rating4+17+
Developer传河 张中强 邓

In-app purchases

3 purchases

Rubber Clock

One-time3
  • Small Eraser Pack$0.99
  • Medium Eraser Pack$1.99
  • Large Eraser Pack$2.99
None

SleepLight睡前夜灯

No in-app purchases

Questions

Is Rubber Clock free?
Rubber Clock is free to download, with in-app purchases available.
Is SleepLight睡前夜灯 free?
SleepLight睡前夜灯 is free to download, with no in-app purchases.
Do Rubber Clock or SleepLight睡前夜灯 have ads?
Neither Rubber Clock nor SleepLight睡前夜灯 shows ads.

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