# Prime Factorization vs Bambu Handy

The clearest difference is in-app purchases: Prime Factorization at none against Bambu Handy's 3. Prime Factorization also leads on review sentiment (100% vs 88%) and iOS requirement (8.0 vs 16.0). Bambu Handy's advantage is rating (4.8 vs 4.4) and update cadence (every 11 days vs every 3 months). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Bambu Handy sells 3 one-off in-app purchases. Prime Factorization asks for nothing beyond the download.

Bambu Handy holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Bambu Handy has 40K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 100% of Prime Factorization's written reviews are positive against 88% of Bambu Handy's, so the app with the better star average is not the one people write more warmly about.

Prime Factorization ships an update every 3 months, Bambu Handy every 11 days. The most recent releases landed on October 15, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Prime Factorization | Bambu Handy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (5 ratings)](https://appshunter.io/ios/app/prime-factorization/id528980227/reviews) | **[4.8 (40K ratings)](https://appshunter.io/ios/app/bambu-handy/id1625671285/reviews)** |
| Number of ratings | 5 | **40K** |
| Positive reviews | **100.0% of reviews** | 87.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 11 days** |
| Monetization | Free | Free |
| Best chart rank | — | **#29** |
| Size | 2 MB | 338 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Sohei Mori](https://appshunter.io/developer/528980270) | [上海轮廓科技有限公司](https://appshunter.io/developer/1672889549) |

## What reviewers say

### Prime Factorization

[App page](https://appshunter.io/ios/app/prime-factorization/id528980227)

This utility app breaks down integers into their prime factors. It also calculates the number and sum of divisors, lists all divisors, and identifies specific number types like prime, perfect, abundant, or deficient.

**Highlights:** Prime factorization of integers, Calculate number of divisors, Sum of divisors calculation, List all divisors, Identify prime numbers, Identify perfect, abundant, deficient numbers

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

**In-app purchases:** none


### Bambu Handy

[App page](https://appshunter.io/ios/app/bambu-handy/id1625671285)

**Currently charting:** #29 Top Free · Utilities (US App Store)

Manage your 3D printers remotely, browse and print designs from a large library, and get real-time status updates. Access learning resources and create timelapse videos of your prints.

**Highlights:** Remote printer operation, Real-time printing status, 3D model discovery, One-tap printing, Live printing view, Timelapse video creation

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MakerLab Credits | $0.99 | one-time |
| MakerLab Credits | $2.99 | one-time |
| MakerLab Credits | $9.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 👍 Convenient remote control
- 🔍 Good monitoring capabilities
- 💡 Integration with Bambu ecosystem
- 🤖 Responsive and smooth interface

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔋 Battery drain
- 📱 Lacks iPad optimization
- 🔇 Unreliable notifications
- 🔒 Privacy concerns with cloud integration

**Reported bugs**

- App crashes or freezes
- Camera feed not working consistently
- Difficulty switching between printers
- Notifications not working as expected
- Syncing issues between app and printer

**Requested features**

- Add landscape mode support for iPad
- Implement slicer functionality within the app
- Allow printing from SD card or local storage
- Provide more customization options
- Improve camera feed reliability and quality


## Frequently asked questions

### Is Prime Factorization free?

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

### Is Bambu Handy free?

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

### Which has better reviews, Prime Factorization or Bambu Handy?

Bambu Handy is rated higher. Prime Factorization averages 4.4 out of 5 from 5 ratings, while Bambu Handy averages 4.8 from 40K ratings.

### Do Prime Factorization or Bambu Handy have ads?

Neither Prime Factorization nor Bambu Handy shows ads.

### Which is updated more often, Prime Factorization or Bambu Handy?

Prime Factorization ships an update every 3 months, and Bambu Handy every 11 days. Most recently, Prime Factorization was updated on October 15, 2026 and Bambu Handy on October 31, 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.*