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Timer 555 Calculator Downloads & RevenueTimer 555 Calculator · App Store

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Updated 8 Nov 2026 · rankings refresh through the day

DeveloperSiu Yuen Ho
CategoryUtilities
PriceFree
Released
Rating★ 3.9 (8)
Version3.0.20
Age rating4+
First seen by us 24 Oct 2026
View on the App Store ↗

Timer 555 Calculator update history & changes

Last change · 3 events since 6 Mar 2014Full timeline ↓
🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 2 events in the last 12 months
  2. 🆕
    Timer 555 Calculator first spotted by AppInsider
    United States (found via developer)
  4. 🆕
    Timer 555 Calculator released on the App Store

Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.

Rating
3.9 ★
8 ratings
Measured

Timer 555 Calculator on the App Store

App details

App ID
834044557
Publisher
Siu Yuen Ho
On the store since
Mar 2014
12 years on the store
Minimum OS
iOS 13.2+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
12
EN FR DE HI IT JA KO PT RU ZH ES ZH
Size
3 MB