Comparison

Google Cardboard vs Note Reader

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

Head to head
About

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.

Highlights
  • VR viewer setup
  • Introductory VR experiences
  • iPhone compatibility
  • Cardboard viewer integration
Read 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.

About

Note Reader

Features
Read 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

Google Cardboard4 screens
Note Reader3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
Google Cardboard versus Note Reader: the parameters behind the verdict, then further details
ParameterGoogle CardboardNote Reader
PriceFree — better$2.99
Rating2.8 (598 ratings) — better—
Positive reviews24.2% of reviews—
Number of ratings598 — better—
Update frequencyEvery 3 months — betterEvery 21 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.013.0 — better
Further details — not scored
Size60 MB23 MB
Age rating4+4+
DeveloperGoogleHieu 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

None

Google Cardboard

No in-app purchases

None

Note Reader

No in-app purchases

Questions

Is Google Cardboard free?
Google Cardboard is free to download, with no in-app purchases.
Is Note Reader free?
Note Reader costs $2.99, with no in-app purchases.
Do Google Cardboard or Note Reader have ads?
Neither Google Cardboard nor Note Reader shows ads.
Which is updated more often, Google Cardboard or Note Reader?
Google Cardboard ships an update every 3 months, and Note Reader every 21 months. Most recently, Google Cardboard was updated on October 11, 2026 and Note Reader on September 30, 2026.

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