Timer 555 Calculator

Siu Yuen Ho · iOS

Timer 555 Calculator

Explore the ad evidence, study the storefront, and build your next acquisition hypothesis.

Paid-ad activity not yet verified
Compare appsMy watchlist

01 / Creative research

Turn the unknowns into a research plan.

01

Check the acquisition promise

Read the store headline, screenshots and description. What problem is the app promising to solve?

Study the storefront ↗
02

Look for ad evidence

Explore apps with direct store-link matches. Compare their hooks and formats without assuming the same approach works here.

Browse observed advertisers ↗
03

Separate demand from paid growth

Store rankings and revenue estimates describe market context. They do not establish ad spend, conversions or ROAS.

Review the market context ↗

02 / Storefront & product

Where the click lands.

Study the product story and store experience behind the acquisition funnel.

Screenshots

Timer 555 Calculator screenshot 1Timer 555 Calculator screenshot 2Timer 555 Calculator screenshot 3Timer 555 Calculator screenshot 4Timer 555 Calculator screenshot 5Timer 555 Calculator screenshot 6Timer 555 Calculator screenshot 7Timer 555 Calculator screenshot 8

03 / Market context

The business behind the app.

Keep revenue, downloads and store rankings separate from advertising performance.

How Much Does Timer 555 Calculator Make?

Monthly Revenue
$1.0K
Annualized estimate
$12.0K
Per Download
$1.00

Platform Performance

🍎iOS
Revenue
$1.0K
Downloads
1.0K
Rating
3.9 ★(8)

Rating Distribution

3.9
★★★★☆
8 reviews
5
25%
4
0%
3
0%
2
13%
1
63%

Top Countries

🇲🇽 MX🇷🇺 RU🇹🇭 TH
Reviews (3)▼
★★★★★pooface93007/26/2018
Good app

It was a very good app and easy to use and I have used it multiple times with no issues whatsoever.

★★★★★phonebone2221/8/2015
Good, simple

Nice little 555 timer App. Great for most common 555 applications. It would be nice if other circuits found in books like the 555 Timer Cookbook would be included too.

★★★★★photomem10/14/2014
Excellent Tool

This application is easy to use and very useful

Version History (26)▼
3.0.205/14/2025
3.0.153/25/2024
3.0.107/2/2021
3.0.05/16/2021
2.9.55/2/2021
2.9.22/16/2020
2.9.02/11/2020
2.7.11/23/2020
2.7.01/22/2020
2.6.012/29/2019
Available In (114 Countries)▼
🇺🇸 United States🇦🇺 Australia🇨🇦 Canada🇫🇷 France🇩🇪 Germany🇬🇧 United Kingdom🇮🇹 Italy🇯🇵 Japan🇰🇷 South Korea🇷🇺 Russia🇩🇿 DZ🇦🇴 AO🇦🇷 Argentina🇦🇹 Austria🇦🇿 AZ🇧🇧 BB🇧🇾 BY🇧🇪 Belgium🇧🇲 BM🇧🇷 Brazil🇧🇬 Bulgaria🇨🇱 Chile🇨🇴 Colombia🇨🇷 CR🇭🇷 Croatia🇨🇿 Czech Republic🇩🇰 Denmark🇩🇴 DO🇪🇨 EC🇪🇬 Egypt🇸🇻 SV🇫🇮 Finland🇬🇭 GH🇬🇷 Greece🇬🇹 GT🇭🇰 Hong Kong🇭🇺 Hungary🇮🇳 India🇮🇩 Indonesia🇮🇪 Ireland🇮🇱 Israel🇰🇿 KZ🇰🇪 Kenya🇰🇼 KW🇱🇧 LB🇱🇹 Lithuania🇱🇺 LU🇲🇴 MO🇲🇬 MG🇲🇾 Malaysia🇲🇽 Mexico🇳🇱 Netherlands🇳🇿 New Zealand🇳🇬 Nigeria🇳🇴 Norway🇴🇲 OM🇵🇰 Pakistan🇵🇦 PA🇵🇪 Peru🇵🇭 Philippines🇵🇱 Poland🇵🇹 Portugal🇶🇦 QA🇷🇴 Romania🇸🇦 Saudi Arabia🇸🇬 Singapore🇸🇰 Slovakia🇸🇮 Slovenia🇿🇦 South Africa🇪🇸 Spain🇱🇰 LK🇸🇪 Sweden🇨🇭 Switzerland🇹🇼 Taiwan🇹🇭 Thailand🇹🇳 TN🇹🇷 Turkey🇺🇦 Ukraine🇦🇪 UAE🇺🇾 UY🇺🇿 UZ🇻🇪 VE🇻🇳 Vietnam🇧🇴 BO🇰🇭 KH🇪🇪 Estonia🇱🇻 Latvia🇳🇮 NI🇵🇾 PY🇦🇫 AF🇬🇪 GE🇮🇶 IQ🇱🇾 LY🇲🇦 MA🇲🇿 MZ🇲🇲 MM🇾🇪 YE🇧🇭 BH🇨🇾 CY🇲🇹 MT🇷🇸 RS🇧🇯 BJ🇧🇫 BF🇨🇲 CM🇨🇬 CG🇨🇮 CI🇯🇴 JO🇱🇦 LA🇲🇱 ML🇸🇳 SN🇹🇿 TZ🇺🇬 UG🇿🇲 ZM🇿🇼 ZW
Supported Languages (11)▼
EnglishFrenchGermanHIItalianJapaneseKoreanPortugueseRussianChineseSpanish
App Details▼

This app is used to calculate monostable and astable circuit. Features * Calculate pulse width of monostable circuit * Calculate frequency of astable...

iOS App ID
834044557
Content Rating
4+
Min OS
13.2
Size
3.1 MB
In-App Purchases
Yes
Publisher
Siu Yuen Ho
Ho

In-App Purchases (1)

NamePriceType
Unlock Pro feature$0.99One-time