Comparison

Subnet 64 vs Operational Amplifiers Pro

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

Head to head
About

Subnet 64

This app simplifies IP networking for professionals and students. It calculates IPv4 and IPv6 subnets, converts between binary and decimal, and helps optimize network configurations. Ideal for troubleshooting, studying, or managing IP addresses.

Highlights
  • IPv4 & IPv6 subnet calculation
  • Binary to decimal conversion
  • Subnet mask, CIDR, and address range calculation
  • Cisco certification preparation
  • User-friendly interface
  • IP address management
Features
Read full description

Master IP networking with the ultimate IPv4 & IPv6 Subnet Calculator! Designed for network administrators, Cisco professionals, and networking students, this powerful app simplifies subnetting and IP address management. Effortlessly calculate subnets, convert between binary and decimal, and optimize your network configurations on the go. Key Features: - IPv4 & IPv6 Support: Seamlessly calculate subnets for both protocols. - Subnetting Made Easy: Break down complex networks with precise subnet masks, CIDR, and address ranges. - Binary Conversion: Instantly convert IP addresses to binary for deeper understanding. - Cisco-Compatible: Perfect for CCNA, CCNP, and other networking certifications. - User-Friendly Interface: Intuitive design for quick calculations, ideal for pros and beginners alike. - Learning Tool: Master subnetting concepts, great for students. Whether you're troubleshooting a network, studying for a Cisco exam, or exploring IP addressing, this calculator is your go-to tool for fast, accurate results. Download now and take control of your networking tasks!

About

Operational Amplifiers Pro

This app provides interactive calculators and reference information for designing and analyzing op-amp circuits. It offers step-by-step explanations and technical data on popular op-amp series, aiding students and engineers in circuit development and prototyping.

Highlights
  • Interactive op-amp circuit calculators
  • Step-by-step explanations and formulas
  • Reference data on op-amps and comparators
  • Support for 14 languages
  • Light and dark mode
  • Advanced calculators and circuit guides (Pro)
  • Full-text search (Pro)
Features
Currently charting
Read full description

Operational Amplifiers Pro is your essential tool for designing and analyzing circuits using op-amps. Whether you're a student, electronics enthusiast, or experienced engineer, this app helps you create, calculate, and understand a wide variety of op-amp–based circuits with ease. Use it as a practical reference when developing projects, building prototypes, or studying amplifier configurations. The app also includes technical data on popular operational amplifier and comparator series — making it a handy guide for both design and selection. Available in 14 Languages: • English, French, German, Indonesian, Italian, Japanese, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Turkish, Ukrainian, and Vietnamese — study in your native language! Key Features: • Interactive calculators for common op-amp circuits • Step-by-step explanations and formulas • Reference info on op-amps and comparators • Ideal for learning, prototyping, or quick checks • Light and dark mode support Pro Version Includes: • Advanced calculators and circuit guides • Full-text topic search • Save favorite circuits for quick access 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 • Differential amplifier with T-bridge in OS • Voltage repeater • Inverting voltage repeater • AC voltage amplifier • High Input Impedance AC Voltage Amplifier • AC voltage repeater ActiveFilters • Non-inverting low-pass filter • Inverting low-pass filter • Non-inverting high-pass filter • Inverting high pass filter • Bandpass filter • Gyrator Integrators and differentiators • Voltage integrator • Sum integrator • Integrator with signal amplification • Difference integrator • Double integrator • Voltage differentiator • Sum Differentiator • Differentiator with T-bridge • Differentiator with T-bridge made of capacitors • Difference differentiator Comparators • Comparator • Limiter • Limiter with zener diode at the input • RS trigger 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 • Popular operational amplifiers description and pinout Sine Wave generators • Op-Amp Oscillators • Oscillator with Diode in the Feedback Path • Twin-T Network Signal Generator Square-wave pulse generators • Op-Amp Square-Wave Generator • Adjustable Square-Wave Generator • Enhanced Square-Wave Generator • Duty-Cycle Adjustment • Triangle and Square-Wave Generator • Generator with Adjustable Slope and Duty Cycle Triangle-wave signal generators • Nonlinear Triangle-Wave Generator • Variable-Symmetry Sawtooth Generator • Linear Triangle-Wave Generator • Adjustable Linear Triangle-Wave Generator • Variable-Symmetry Ramp Generator Download now and power up your electronics work!

Screenshots

Subnet 643 screens
Operational Amplifiers Pro4 screens

Verdict

The call

The clearest difference is rating: Operational Amplifiers Pro at 5.0 against Subnet 64's 4.0. Operational Amplifiers Pro also leads on chart position (#198 vs unranked) and price ($4.99 vs $6.99). On ratings volume, update cadence, ads and in-app purchases 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

Subnet 64 costs $6.99 and Operational Amplifiers Pro $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Operational Amplifiers Pro holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 24, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 8 level
Subnet 64 versus Operational Amplifiers Pro: the parameters behind the verdict, then further details
ParameterSubnet 64Operational Amplifiers Pro
Price$6.99$4.99 — better
Rating4.0 (2 ratings)5.0 (1 ratings) — better
Positive reviews33.3% of reviews—
Number of ratings2 — better1
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#198 — better
DevicesiPhone, iPad, MaciPhone, iPad, Mac
Requires iOS18.017.0 — better
Further details — not scored
Size0 MB14 MB
Age rating4+4+
DeveloperSpaceNation Inc. CAALG Software Lab

Customer experience

Subnet 64

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews3 reviews
Positive33.3%
Neutral33.3%
Negative33.3%

Operational Amplifiers Pro

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Subnet 64

No in-app purchases

None

Operational Amplifiers Pro

No in-app purchases

Questions

Is Subnet 64 free?
Subnet 64 costs $6.99, with no in-app purchases.
Is Operational Amplifiers Pro free?
Operational Amplifiers Pro costs $4.99, with no in-app purchases.
Which has better reviews, Subnet 64 or Operational Amplifiers Pro?
Operational Amplifiers Pro is rated higher. Subnet 64 averages 4.0 out of 5 from 2 ratings, while Operational Amplifiers Pro averages 5.0 from 1 ratings.
Do Subnet 64 or Operational Amplifiers Pro have ads?
Neither Subnet 64 nor Operational Amplifiers Pro shows ads.
Which is updated more often, Subnet 64 or Operational Amplifiers Pro?
Subnet 64 ships an update every 2 months, and Operational Amplifiers Pro every 2 months. Most recently, Subnet 64 was updated on September 24, 2026 and Operational Amplifiers Pro on October 12, 2026.

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