Comparison

PNO Book vs Infor

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

Head to head
About

PNO Book

Features
Read full description

PNO Books is an ever-growing collection of chord progression books designed for musicians who love learning by ear and enjoy discovering new sounds. Whether you're looking for progressions inspired by specific songs, genres, or artists—or want to explore unique piano theory insights—PNO Books makes it easy. Each book includes clear, highlighted chords and accompanying video lessons, giving you a visual and practical way to bring progressions to life on the keys. Perfect for Pianists Who: Learn best by ear and love experimenting with new sounds Enjoy learning from YouTube but want structured, ready-to-play progressions Want fresh chord ideas inspired by real music to spark creativity Prefer a no-fluff, straight-to-the-point approach to playing With new books and videos added regularly, PNO Books is your go-to resource for expanding your chord vocabulary and refining your sound. Download now and start playing!

About

Infor

This platform helps aspiring musicians learn instruments and music theory through structured lessons curated by student-teachers. It offers real-time progress tracking, supplementary resources, and an integrated video player for an immersive learning experience.

Highlights
  • Structured instrument lessons
  • Music theory education
  • Student-teacher connections
  • Real-time progress tracking
  • Integrated video player
  • Community forums
Features
Read full description

Informusic is a modern, student-led platform dedicated to teaching aspiring musicians about various musical instruments and developing a rich understanding of reading and understanding music. Built by similarly dedicated musicians, Informusic connects learners with knowledgeable student-teachers who curate courses based off of their instrument through approachable, structured lessons. Users can track their progress through their courses in real time, witnessing their improvements and advancement as they continue through their lessons. Each lesson is paired with resources written by the teacher to reinforce the key concepts, terminology, and techniques, enabling students to absorb information from various sources. To support interactive learning and diverse learning styles, Informusic features its very own video playing system, allowing users to watch performance clips, demonstrations, and lessons directly within the app without any external distractions. Since learning is heavily collaborative, Informusic provides a dedicated forums to encourage users to interact with the Informusic community. Users can ask questions, help their fellow Informusicians, and engage with both instructors and community members. By managing user content in the forums, the Informusic forums page encourages the creation of a supportive community where knowledge is exchanged and shared among the users of Informusic.

Screenshots

PNO Book4 screens
Infor4 screens

Verdict

The call

The clearest difference is update cadence: PNO Book at weekly against Infor's monthly. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PNO Book ships an update weekly, Infor monthly. Both last shipped on October 30, 2026.

Scorecard1 real difference · 8 level
PNO Book versus Infor: the parameters behind the verdict, then further details
ParameterPNO BookInfor
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyWeekly — betterMonthly
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0.0 — better15.1
Further details — not scored
Size58 MB40 MB
Age rating4+4+
DeveloperReginald WatkinsJayabindu Singh

In-app purchases

None

PNO Book

No in-app purchases

None

Infor

No in-app purchases

Questions

Is PNO Book free?
PNO Book is free to download, with no in-app purchases.
Is Infor free?
Infor is free to download, with no in-app purchases.
Do PNO Book or Infor have ads?
Neither PNO Book nor Infor shows ads.
Which is updated more often, PNO Book or Infor?
PNO Book ships an update weekly, and Infor monthly. Most recently, PNO Book was updated on October 30, 2026 and Infor on October 30, 2026.

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