Ampere vs QR Code Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ampere
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Explore plasma physics through interactive simulations and transparent educational calculators. SIMULATE PLASMA PHENOMENA • Guide animated plasma-globe filaments • Explore a Paschen-law glow-discharge model • Drive a 13.56 MHz RF reactor solved by a global discharge model • Adjust an illustrative tokamak control visualization CALCULATE CORE PARAMETERS • Debye shielding length • Electron plasma frequency • Paschen breakdown voltage • Synthetic planar Langmuir-probe response • Lossless 13.56 MHz RF L-network matching • Bohdansky physical sputter-yield estimates Ampere works offline and requires no account or purchase. Every advanced model states its assumptions and limitations. Results are intended for education and first-pass exploration, not professional engineering or safety decisions.
QR Code Reader
This app allows young students to scan QR codes found in interactive books. Scanning these codes unlocks additional web-based learning content, including activities and videos, to enhance the educational experience. It's designed with safety in mind, avoiding ads and in-app purchases.
- Scans QR codes from interactive books
- Links to web-based learning content
- Access to activities, games, and videos
- Designed for young students
- No ads or in-app purchases
- Collects only anonymous usage statistics
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This simple, easy-to-use QR Code reader is designed for young students to use with our interactive books. Our interactive books (in print) include QR codes that extend and enhance the learning experience by linking to additional activities, games, videos and much more. Open the app, point it at one of the many codes scattered throughout our books, and the learner is whisked off to one of our web-based learning enhancements. (Internet connection is required.) Why develop our own reader? Because we did not want our young learners exposed to in-app advertising or purchasing, nor did we want them using apps that could be collecting data we could not limit or control. Our app is FREE and does NOT include advertising or in-app purchases. The only data we collect is anonymous and consists of basic usage statistics, such as date app downloaded; time zone of user (giving us very generalized location information); dates and times used; and links followed. Our app only reads QR codes generated by nVizn Ideas, so students can use the Reader to access only web content that we create and maintain. Students scanning any other QR codes will not reach the targeted material. Therefore, our app is rated "Made for Kids."
Screenshots
Verdict
The clearest difference is iOS requirement: QR Code Reader at 10.0 against Ampere's 16.4. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Ampere | QR Code Reader |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 145 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 10.0 — better |
| Further details — not scored | ||
| Size | 51 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Scott Beilfuss | nVizn Ideas |
In-app purchases
Ampere
No in-app purchases
QR Code Reader
No in-app purchases
Questions
Is Ampere free?
Is QR Code Reader free?
Do Ampere or QR Code Reader have ads?
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