# Bass Constructor vs Twirdora

The clearest difference is rating: Twirdora at 4.9 against Bass Constructor's 3.7. Twirdora also leads on in-app purchases (none vs 5) and review sentiment (100% vs 77%). Bass Constructor's advantage is iOS requirement (8.0 vs 12.0). On price, ads and device support there is nothing between them.

Both are free to download. Bass Constructor sells 5 one-off in-app purchases. Twirdora asks for nothing beyond the download.

Twirdora holds the better App Store score, 4.9 against 3.7. Both are backed by a comparable volume of ratings — 3 and 12 respectively. Written reviews point the same way: 77% of Bass Constructor's written reviews are positive against 100% of Twirdora's.

Bass Constructor ships an update every 3 months, Twirdora every 5 weeks. The most recent releases landed on October 20, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Bass Constructor | Twirdora |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/bass-constructor/id517529581/reviews) | **[4.9 (12 ratings)](https://appshunter.io/ios/app/twirdora/id1552561749/reviews)** |
| Number of ratings | 3 | **12** |
| Positive reviews | 77.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 58 MB | 526 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Asylum Square Interactive GmbH](https://appshunter.io/developer/1042383824) | [潇迪 刘](https://appshunter.io/developer/1552523557) |

## What reviewers say

### Bass Constructor

[App page](https://appshunter.io/ios/app/bass-constructor/id517529581)

Create your own hit songs with ease, even without prior music knowledge. Tap sample blocks to develop unique tracks with pre-made construction kits. Explore various genres like house and trance to produce impressive music.

**Highlights:** Tap sample blocks for music creation, Six construction kits with beats and melodies, House & trance genre styles, Compose synth chords, Produce hit songs easily

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Electromania Construction Kit | $1.99 | one-time |
| AliceWonderland | $1.99 | one-time |
| PumpAcc Construction Kit | $1.99 | one-time |
| Chicago Construction Kit | $1.99 | one-time |
| Unlock all | $4.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🎶 Great sounds/samples
- 🤩 Fun and entertaining
- 💡 Creative tool
- 🚀 Good for beginners

**What reviewers complain about**

- 💰 Expensive in-app purchases
- 🤔 Limited free content
- 👎 Lacks advanced features
- 🤷‍♂️ Confusing pricing/options
- 🚫 No recording/saving

**Reported bugs**

- Menu disappears
- Sync issues after updates
- Buttons require holding
- App feels like a beta

**Requested features**

- Add recording functionality
- Add save/export option
- Make more sounds/packs free
- Improve sync/stability
- Add tempo control


### Twirdora

[App page](https://appshunter.io/ios/app/twirdora/id1552561749)

Experience a unique rhythm game with innovative tap, hold, and rotate mechanics. Enjoy a wide range of difficulty levels and high-quality tracks from diverse genres. Explore engaging gameplay systems and enjoy beautifully crafted artworks.

**Highlights:** Brand new expressive gameplay mechanics, Charts for all-level players, High-quality tracks in varied genres, Carefully designed gameplay systems, Delicately created artworks, Free to play

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Bass Constructor free?

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

### Is Twirdora free?

Twirdora is free to download, with no in-app purchases.

### Which has better reviews, Bass Constructor or Twirdora?

Twirdora is rated higher. Bass Constructor averages 3.7 out of 5 from 3 ratings, while Twirdora averages 4.9 from 12 ratings.

### Do Bass Constructor or Twirdora have ads?

Neither Bass Constructor nor Twirdora shows ads.

### Which is updated more often, Bass Constructor or Twirdora?

Bass Constructor ships an update every 3 months, and Twirdora every 5 weeks. Most recently, Bass Constructor was updated on October 20, 2026 and Twirdora on October 7, 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.*