# 西北工业大学 vs Bin Day Erlangen

The clearest difference is update cadence: Bin Day Erlangen at every 3 days against 西北工业大学's every 2 months. 西北工业大学's advantage is iOS requirement (11.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

西北工业大学 ships an update every 2 months, Bin Day Erlangen every 3 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 西北工业大学 | Bin Day Erlangen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (7 ratings)](https://appshunter.io/ios/app/id1490975343/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 102 MB | 3 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [上海树维信息科技有限公司](https://appshunter.io/developer/994850925) | [Anand Sengupta](https://appshunter.io/developer/1841054010) |

## What reviewers say

### 西北工业大学

[App page](https://appshunter.io/ios/app/id1490975343)

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

**In-app purchases:** none


### Bin Day Erlangen

[App page](https://appshunter.io/ios/app/bin-day-erlangen/id6794923563)

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

**In-app purchases:** none


## Frequently asked questions

### Is 西北工业大学 free?

西北工业大学 is free to download, with no in-app purchases.

### Is Bin Day Erlangen free?

Bin Day Erlangen is free to download, with no in-app purchases.

### Do 西北工业大学 or Bin Day Erlangen have ads?

Neither 西北工业大学 nor Bin Day Erlangen shows ads.

### Which is updated more often, 西北工业大学 or Bin Day Erlangen?

西北工业大学 ships an update every 2 months, and Bin Day Erlangen every 3 days. Most recently, 西北工业大学 was updated on November 3, 2026 and Bin Day Erlangen on November 6, 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.*