Timer 555 Calculator
Siu Yuen Ho Utilities iPhoneiPadiPod touch
Timer 555 Calculator is a free Utilities app for iPhone and iPad by Siu Yuen Ho. Rated 3.9/5 from 8 ratings. Requires iOS 13.2. Updated May 14, 2025.
- Rating
- 3.9
- 8 ratings
- Price
- Free
- on the App Store
- Size
- 3 MB
- Age 4+
- Updated
- May 14
- 2025 · v3.0.20
Screenshots
About Timer 555 Calculator
This app is used to calculate monostable and astable circuit. Features * Calculate pulse width of monostable circuit * Calculate frequency of astable circuit * Find out combination of components making a desire pulse width in monostable circuit * Find out combination of components making a desire frequency in astable circuit * Saving component values in CSV file * Upload generated CSV files via AirDrop or iCloud Drive * Support English, German, French, Italian, Spanish, Portuguese, Japanese, Korean, Russian
Ratings & reviews
3.9
8 ratings
What’s new
Version 3.0.20 · Updated May 14, 2025
Fix minor bugs
App privacy
The developer, Siu Yuen Ho, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Timer 555 Calculator
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Timer 555 Calculator | 3.9 / 5 (8 ratings) | Free | May 14, 2025 | |
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| Operational Amplifiers Guide | – | Free | Aug 18, 2026 | Compare |
| Capacitor-Converter | 4.8 / 5 (10) | Free | Jul 29, 2026 | Compare |
| Resistor Code Calculators | – | Free | Jul 1, 2026 | Compare |
| Electronic Component Codes | – | Free | Aug 14, 2026 | Compare |
| Simple Circuit Builder | 4.0 / 5 (28) | Free | Apr 9, 2025 | Compare |