Comparison

星月 vs Rubber Clock

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

Head to head
About

星月

Features
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使用低功耗BLE(BluetoothLowEnergy)技术实现相对应设备的搜索和连接,实现APP与设备的数据交互;实现设备的指令下发和控制;提供OTA在线升级功能;提供直观且易于导航的UI页面展示给用户;提供商品信息展示;实现用户注册/登录系统等。 Use low-power BLE (Bluetooth Low Energy) technology to implement corresponding device search and connection, enabling data exchange between the app and the device; implement command sending and control of the device; provide OTA (Over-The-Air) firmware upgrade functionality; offer an intuitive and easy-to-navigate UI interface for users; display product information; and implement a user registration/login system.

About

Rubber Clock

Features
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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.

Screenshots

星月4 screens
Rubber Clock3 screens

Verdict

The call

The clearest difference is in-app purchases: 星月 at none against Rubber Clock's 3. 星月 also leads on iOS requirement (15 vs 18.4). Rubber Clock's advantage is update cadence (every 5 days vs every 2 weeks). On price, ads and device support 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. 星月 asks for nothing beyond the download.

UpkeepUpdate frequency

星月 ships an update every 2 weeks, Rubber Clock every 5 days. The most recent releases landed on October 18, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 3 level
星月 versus Rubber Clock: the parameters behind the verdict, then further details
Parameter星月Rubber Clock
PriceFreeFree
Update frequencyEvery 2 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPod — betteriPhone
Requires iOS15 — better18.4
Further details — not scored
Size43 MB111 MB
Age rating4+4+
Developer浙江星月实业有限公司传河 张

In-app purchases

None

星月

No in-app purchases

3 purchases

Rubber Clock

One-time3
  • Small Eraser Pack$0.99
  • Medium Eraser Pack$1.99
  • Large Eraser Pack$2.99

Questions

Is 星月 free?
星月 is free to download, with no in-app purchases.
Is Rubber Clock free?
Rubber Clock is free to download, with in-app purchases available.
Do 星月 or Rubber Clock have ads?
Neither 星月 nor Rubber Clock shows ads.
Which is updated more often, 星月 or Rubber Clock?
星月 ships an update every 2 weeks, and Rubber Clock every 5 days. Most recently, 星月 was updated on October 18, 2026 and Rubber Clock on October 11, 2026.

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