Opamp tools vs CodeSTEPS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
CodeSTEPS
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CodeSTEPS macht das Erlernen von Programmiersprachen zum Kinderspiel. Für Lehrer: Erstelle Bücher mit Infos, Beispielen und Kompetenzen und lade Schüler*innen in deine Lerngruppen ein. Für Schüler:innen: Erstelle Schritt für Schritt immer größere und umfangreichere Programme. Habe deinen Lernfortschritt immer im Blick und lasse ihn dir von deiner Lehrkraft bestätigen.
Screenshots
Verdict
The clearest difference is in-app purchases: CodeSTEPS at none against Opamp tools's 1. CodeSTEPS also leads on update cadence (every 2 weeks vs every 12 months). On price, ads, device support and iOS requirement 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. CodeSTEPS asks for nothing beyond the download.
Opamp tools ships an update every 12 months, CodeSTEPS every 2 weeks. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.
| Parameter | Opamp tools | CodeSTEPS |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 12 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 4 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Siu Yuen Ho | Dietmar Scheiblhofer |
In-app purchases
Opamp tools
- Unlock pro feature$1.99
CodeSTEPS
No in-app purchases
Questions
Is Opamp tools free?
Is CodeSTEPS free?
Do Opamp tools or CodeSTEPS have ads?
Which is updated more often, Opamp tools or CodeSTEPS?
Other comparisons
