Operational Amplifiers Pro app for iPhone and iPad

This is an application for the design and calculation of electronic circuits using operational amplifiers.
The application contains the following guides and calculators:
Amplifiers
- Non-inverting operational amplifier
- Inverting operational amplifier
- Inverting amplifier with T-bridge in OS
- Differential amplifier (info)
- Differential amplifier with T-bridge in OS (pro)
- Voltage repeater (info)
- Inverting voltage repeater (info) (pro)
- AC voltage amplifier (pro)
- High Input Impedance AC Voltage Amplifier (pro)
- AC voltage repeater (info) (pro) (draft)
ActiveFilters
- Non-inverting low-pass filter
- Inverting low-pass filter
- Non-inverting high-pass filter
- Inverting high pass filter
- Bandpass filter (pro)
- Gyrator
Integrators and differentiators
- Voltage integrator (info)
- Sum integrator (info)
- Integrator with signal amplification (info) (pro) (draft)
- Difference integrator (info)
- Double integrator (info)
- Voltage differentiator (info)
- Sum Differentiator (info) (pro)
- Differentiator with T-bridge (info) (pro)
- Differentiator with T-bridge made of capacitors (info) (pro)
- Difference differentiator (info) (pro)
Comparators
- Comparator
- Limiter (info)
- Limiter with zener diode at the input (info)
- Voltage reference (pro) (draft)
- RS trigger (pro)
Attenuators
- Non-inverting attenuator
- Inverting attenuator
Converters
- Voltage-to-current converter with non-inverting input
- Voltage to current converter with inverting input
- Voltage to current converter with differential input
Adders and substactors
- Inverting adder
- Addition-subtraction circuit
- Non-inverting adder
Logarithmic and exponential amplifiers
- Diode-based logarithmic amplifier
- Transistor-based logarithmic amplifier
- Diode exponential amplifier
- Exponential transistor amplifier
The app contains full-text search functionality. Also, the app can switch between a light and dark theme, depending on the users preferences.