# Koppers UIP vs Bubble Level

The clearest difference is in-app purchases: Koppers UIP at none against Bubble Level's 3. Koppers UIP also leads on iOS requirement (10.0 vs 17.0). Bubble Level's advantage is update cadence (monthly vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Bubble Level sells 3 in-app purchases, starting at $4.99 per 7 days. Koppers UIP asks for nothing beyond the download.

Koppers UIP ships an update every 5 months, Bubble Level monthly. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Koppers UIP | Bubble Level |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/koppers-uip/id1547851617/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free | — |
| Size | 22 MB | 5 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Koppers Inc](https://appshunter.io/developer/1547851619) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### Koppers UIP

[App page](https://appshunter.io/ios/app/koppers-uip/id1547851617)

This app provides utility professionals with essential tools for the job. It includes calculators for pole and truckload dimensions, specification documents for installation and maintenance, and emergency contact information. Users can also request poles directly through the app.

**Highlights:** Pole and truckload calculators, Specification documents, Emergency contact information, Pole request functionality, Weight scale calculator, Categorized content library

**Features:** macOS Compatibility

**In-app purchases:** none


### Bubble Level

[App page](https://appshunter.io/ios/app/bubble-level-angle-finder/id6772273713)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bubble Gauge Weekly | $4.99 | per 7 days |
| Slope Finder Yearly | $24.99 | per year |
| Angle Meter, Pay Once | $49.99 | one-time |


## Frequently asked questions

### Is Koppers UIP free?

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

### Is Bubble Level free?

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

### Do Koppers UIP or Bubble Level have ads?

Neither Koppers UIP nor Bubble Level shows ads.

### Which is updated more often, Koppers UIP or Bubble Level?

Koppers UIP ships an update every 5 months, and Bubble Level monthly. Most recently, Koppers UIP was updated on October 7, 2026 and Bubble Level on October 13, 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.*