Google Cardboard vs Note Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Google Cardboard
Experience virtual reality on your iPhone. This app guides you through setting up a compatible viewer and offers initial immersive experiences to explore.
- VR viewer setup
- Introductory VR experiences
- iPhone compatibility
- Cardboard viewer integration
Read full descriptionHide full description
Cardboard puts virtual reality on your iPhone. The Google Cardboard app helps you set up a Cardboard viewer and includes a few experiences to get you started. To fully enjoy this app you'll need a Cardboard viewer. Learn more and get your own Cardboard viewer at http://g.co/cardboard. Do not use this app while driving, walking, or otherwise by being distracted or disoriented from real world situations that prevent you from obeying traffic or safety laws.
Note Reader
Read full descriptionHide full description
Learn to Read Piano Notes Quickly and Easily Master Treble Clef Notes Level 1-3 for Treble and Bass notes lesson. Start with Basic Notes - Immediate Feedback on Your Progress 1. Start the App Open Note Reader and choose a lesson: Treble or Bass clef notes to begin your musical journey. 2. Recognize the Note Look at the note displayed on the screen and get ready to identify it. 3. Play the Note Use the on-screen keyboard to play the note. Receive instant feedback with a green check for correct answers and a red cross for incorrect ones. 4. Turn ON/OFF Hint Enable hints in the settings. If you need help, the correct key will be highlighted after 8 seconds. Alternatively, long-press the note image to see the note name. 5. Progress and Levels Track your progress at the bottom of the screen and advance through levels as you improve your skills. 6. Mute and Reset Mute sounds or reset your progress anytime in the settings page. Just tap the settings icon in the top right corner. 7. Practice Regularly Regular practice is the key to mastering note reading. Enjoy and have fun while you learn!
Screenshots
Verdict
The clearest difference is price: Google Cardboard at Free against Note Reader's $2.99. Google Cardboard also leads on update cadence (every 3 months vs every 21 months). Note Reader's advantage is iOS requirement (13.0 vs 15.0). On 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
Google Cardboard is free to download; Note Reader costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Google Cardboard ships an update every 3 months, Note Reader every 21 months. The most recent releases landed on October 11, 2026 and September 30, 2026 respectively.
| Parameter | Google Cardboard | Note Reader |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 2.8 (598 ratings) — better | — |
| Positive reviews | 24.2% of reviews | — |
| Number of ratings | 598 — better | — |
| Update frequency | Every 3 months — better | Every 21 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 60 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Hieu Huynh | |
Bugs and requests
Google Cardboard
Reported bugs
3 issues- Constant spinning/shaking on some devices
- Crashes and freezes on launch
- Incompatibility with certain VR headsets
Requested features
4 requests- More VR games and interactive experiences
- Ability to view own photos/videos in VR
- Support for newer iOS versions
- Improved navigation and controls
Note Reader
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Google Cardboard
No in-app purchases
Note Reader
No in-app purchases
Questions
Is Google Cardboard free?
Is Note Reader free?
Do Google Cardboard or Note Reader have ads?
Which is updated more often, Google Cardboard or Note Reader?
Other comparisons















