# Kjos IPS vs TinkerTray

The clearest difference is update cadence: TinkerTray at every 4 days against Kjos IPS's every 2 months. Kjos IPS's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Kjos IPS sells 48 one-off in-app purchases and TinkerTray sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Kjos IPS ships an update every 2 months, TinkerTray every 4 days. The most recent releases landed on October 21, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Kjos IPS | TinkerTray |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (130 ratings)](https://appshunter.io/ios/app/kjos-ips/id982025486/reviews)** | — |
| Number of ratings | **130** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 218 MB | 96 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pygraphics, Inc.](https://appshunter.io/developer/909400469) | [Tinker Apps Inc.](https://appshunter.io/developer/1895830546) |

## What reviewers say

### Kjos IPS

[App page](https://appshunter.io/ios/app/kjos-ips/id982025486)

Enhance music education with interactive practice tools. Access digital sheet music, play-along accompaniments, video lessons, and a recording studio. Ideal for students and teachers to deepen musical understanding and track progress.

**Highlights:** eBook versions of Kjos publications, Teacher Edition access, Play-along accompaniment and recordings, Video lessons, Personal recording studio, Interactive glossaries and flashcards

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (48)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Video Practice Guides for TOE - Percussion - Media Only | $3.99 | one-time |
| Excellence in Theory Bk 1 - DB | $5.99 | one-time |
| String Basics Cello Book 1, DB | $8.99 | one-time |
| String Basics Violin Bk 1, DB | $8.99 | one-time |
| String Basics Violin Bk 2, DB | $8.99 | one-time |
| Bastien New Trad: Primer A, DB | $8.99 | one-time |
| Bastien New Traditions: All In One, Level 1A - Digital Book | $8.99 | one-time |
| Bastien New Traditions: All In One, Level 2A - Digital Book | $8.99 | one-time |
| Bastien New Trad: Primer B, DB | $8.99 | one-time |
| Bastien New Traditions: 3B DB | $8.99 | one-time |
| SB String Bass Bk 1, DB | $8.99 | one-time |
| Bastien New Traditions: 4B DB | $8.99 | one-time |
| Bastien New Traditions: 3A DB | $8.99 | one-time |
| String Basics Violin Bk 3, DB | $8.99 | one-time |
| String Basics Viola Book 1, DB | $8.99 | one-time |
| String Basics Viola Book 3, DB | $8.99 | one-time |
| Bastien New Traditions: All In One, Level 1B - Digital Book | $8.99 | one-time |
| Bastien New Traditions: 2B DB | $8.99 | one-time |
| Bastien New Traditions: 4A DB | $8.99 | one-time |
| Tradition of Excellence Flute Book 1 - Digital Book | $9.99 | one-time |
| Tradition of Excellence Clarinet Book 1 - Digital Book | $9.99 | one-time |
| Tradition of Excellence Eb Alto Saxophone Book 1 - Digital Book | $9.99 | one-time |
| Tradition of Excellence Trumpet-Cornet Book 1 - Digital Book | $9.99 | one-time |
| Tradition of Excellence Trombone Book 1 - Digital Book | $9.99 | one-time |
| Tradition of Excellence Score Book 1 - Discount Digital Book | $9.99 | one-time |
| Tradition of Excellence Bb Tuba Book 2 - Digital Book | $9.99 | one-time |
| Tradition of Excellence Clarinet Book 2 - Digital Book | $9.99 | one-time |
| Tradition of Excellence Alto Saxophone Book 2 - Digital Book | $9.99 | one-time |
| SOE Book 1 - Clarinet - Digital Book | $9.99 | one-time |
| SOE Book 2 - Trumpet - DB | $9.99 | one-time |
| Tradition of Excellence Flute Book 2 - Digital Book | $9.99 | one-time |
| SOE Book 1 - Flute - Digital B | $9.99 | one-time |
| SOE Book 1 - Eb Alto Sax - DB | $9.99 | one-time |
| Tradition of Excellence Tuba Book 1 - Digital Book | $9.99 | one-time |
| Tradition of Excellence Baritone-Euphonium TC Book 2 - Digital Book | $9.99 | one-time |
| Tradition of Excellence Baritone-Euphonium BC Book 1 - Digital Book | $9.99 | one-time |
| SOE Book 1 - Trombone - DB | $9.99 | one-time |
| SOE Book 2 Clarinet - DB | $9.99 | one-time |
| Tradition of Excellence Electric Bass Book 2 - Digital Book | $9.99 | one-time |
| SOE Book 1 Trumpet-Cornet - DB | $9.99 | one-time |
| Tradition of Excellence Trumpet-Cornet Book 2 - Digital Book | $10.99 | one-time |
| Tradition of Excellence F Horn Book 1 - Digital Book | $10.99 | one-time |
| SOE Book 1 - Percussion - DB | $11.99 | one-time |
| Tradition of Excellence Percussion Book 1 - Digital Book | $12.99 | one-time |
| Tradition of Excellence Percussion Book 2 - Digital Book | $12.99 | one-time |
| Bastien Piano for Adults Bk 1 | $18.99 | one-time |
| Tradition of Excellence Score Book 1 - Digital Book | $59.99 | one-time |
| SOE Book 1 - Conductor Score | $59.99 | one-time |

**What reviewers like**

- 📚 Digital book access convenient for practice
- 🎵 Audio accompaniment tracks helpful for learning
- 🎤 Recording feature useful for self-assessment
- 🎼 Tuner functionality works well
- 📖 Clean PDF export capability

**What reviewers complain about**

- 🐛 Frequent crashes and freezing issues
- 🐛 Audio playback problems and loading failures
- 🐛 Glitchy interface with scrolling issues
- 🐛 Recording function buggy and unreliable
- 💰 Requires paid license codes for books already purchased

**Reported bugs**

- App crashes on startup or during use
- Audio files won't load or play
- Product code already used error preventing activation
- Videos not functioning
- Tuner stops working after initial use

**Requested features**

- Custom tempo/speed controller for audio
- Ability to record without accompaniment track
- Student part only option without fusion accompaniments
- Disable page transition animations
- Microphone recording improvements


### TinkerTray

[App page](https://appshunter.io/ios/app/tinkertray/id6764553595)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TinkerTray Pro Monthly | $4.99 | per month |
| TinkerTray Pro Annual | $39.99 | per year |


## Frequently asked questions

### Is Kjos IPS free?

Kjos IPS is free to download, with in-app purchases available.

### Is TinkerTray free?

TinkerTray is free to download, with in-app purchases available.

### Do Kjos IPS or TinkerTray have ads?

Neither Kjos IPS nor TinkerTray shows ads.

### Which is updated more often, Kjos IPS or TinkerTray?

Kjos IPS ships an update every 2 months, and TinkerTray every 4 days. Most recently, Kjos IPS was updated on October 21, 2026 and TinkerTray on October 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*