OpAmplifiers vs Opamp tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpAmplifiers
This app aids electronics students by providing information on operational amplifier applications, including schematics, formulas, and component calculations. It offers a simple interface to revise key concepts and check amplifier pinouts.
- Operational amplifier application revision
- Schematics and input value display
- Formula lookup
- Component value calculation
- Amplifier pinout checking
- Supports multiple op-amp circuit types
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The ideal app for electronics studies ! OpAmplifiers allows you to easily revise what you should know about the main applications of Operational Amplifiers, but that's not it ! You can also use OpAmplifiers to calculate the values of your components and quickly check out the pinning of your amplifier, all in a simple and smooth interface. For each application, OpAmplifiers allows you to : - See schematics, and input values. - See the formula of the application. - Check the pinning of your amplifier. The following Operational Amplifier applications are available : - Voltage Follower - Comparator - Inverting Amplifier - Non Inverting Amplifier - Summing Amplifier - Differential Amplifier - Inverting Integrator - Inverting Differentiator
Opamp tools
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This app is the collection of operational amplifier calculators. It is suitable for hobbyist or electronic engineer. Features * Inverting amplifier * Non-Inverting amplifier * Differential amplifier * Summing amplifier * Inverting comparator * First-order filter * Second-order filter (HPF) * Phase shift oscillator * Colpitts oscillator * Limit 5 combinations of component values * Share CSV via AirDrop * Upload CSV to iCloud Drive (For iOS8 or later) Pro Features * Instrumentation amplifier * Non-inverting comparator * Second-order filter (LPF) * Wien bridege oscillator * Hartley oscillator * No limitation of the number of suggestions * Selectable 1%,5%,10%,20% of values
Screenshots
Verdict
The clearest difference is in-app purchases: OpAmplifiers at none against Opamp tools's 1. OpAmplifiers also leads on update cadence (every 6 weeks vs every 12 months) and iOS requirement (6.0 vs 12.0). On price, ads and device support 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
Both are free to download. Opamp tools sells 1 one-off in-app purchase. OpAmplifiers asks for nothing beyond the download.
OpAmplifiers ships an update every 6 weeks, Opamp tools every 12 months. The most recent releases landed on September 23, 2026 and September 26, 2026 respectively.
| Parameter | OpAmplifiers | Opamp tools |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 weeks — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 6.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 3 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Kyrill Cousson | Siu Yuen Ho |
In-app purchases
OpAmplifiers
No in-app purchases
Opamp tools
- Unlock pro feature$1.99
Questions
Is OpAmplifiers free?
Is Opamp tools free?
Do OpAmplifiers or Opamp tools have ads?
Which is updated more often, OpAmplifiers or Opamp tools?
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