CarBoss vs Trombone Level
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
CarBoss
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CarBoss-2 is a smart car lock appใ
Trombone Level
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Check your trombone playing level and evaluate with a score
Screenshots
Verdict
The clearest difference is ads: CarBoss at none against Trombone Level's shown. CarBoss also leads on iOS requirement (8.0 vs 15.0). Trombone Level's advantage is update cadence (every 2 weeks vs every 4 months). On price, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CarBoss ships an update every 4 months, Trombone Level every 2 weeks. The most recent releases landed on October 26, 2026 and October 15, 2026 respectively.
| Parameter | CarBoss | Trombone Level |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Every 2 weeks โ better |
| Ads | No โ better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPod |
| Requires iOS | 8.0 โ better | 15.0 |
| Further details โ not scored | ||
| Size | 7 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | ๅคๅ ็จ | Hideaki Uchikoshi |
In-app purchases
CarBoss
No in-app purchases
Trombone Level
No in-app purchases
Questions
Is CarBoss free?
Is Trombone Level free?
Do CarBoss or Trombone Level have ads?
Which is updated more often, CarBoss or Trombone Level?
Other comparisons
