# El Tubero 2.0 vs SentryApp

The clearest difference is price: SentryApp at Free against El Tubero 2.0's $3.99. SentryApp also leads on update cadence (fortnightly vs every 6 weeks). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

SentryApp is free to download; El Tubero 2.0 costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

El Tubero 2.0 ships an update every 6 weeks, SentryApp fortnightly. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | El Tubero 2.0 | SentryApp |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/el-tubero-20/id1520427393/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 32.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Paid | — |
| Size | 83 MB | 34 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alfredo Pombo](https://appshunter.io/developer/1520427395) | [SentryApp](https://appshunter.io/developer/6773363654) |

## What reviewers say

### El Tubero 2.0

[App page](https://appshunter.io/ios/app/el-tubero-20/id1520427393)

This app helps calculate pipe branch development, fitting runs, bends, and elbow cuts. It also determines bolt sizes, flange dimensions, and includes a unit converter with tightening torques.

**Highlights:** Calculate pipe branch development, Track fitting runs, Calculate bends and elbow cuts, Determine bolt and flange dimensions, Unit converter with tightening torques, Support for 14+ standards including metric stainless steel

**Features:** Vision Pro support

**In-app purchases:** none


### SentryApp

[App page](https://appshunter.io/ios/app/sentryapp/id6746771817)

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

**In-app purchases:** none


## Frequently asked questions

### Is El Tubero 2.0 free?

El Tubero 2.0 costs $3.99, with no in-app purchases.

### Is SentryApp free?

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

### Do El Tubero 2.0 or SentryApp have ads?

Neither El Tubero 2.0 nor SentryApp shows ads.

### Which is updated more often, El Tubero 2.0 or SentryApp?

El Tubero 2.0 ships an update every 6 weeks, and SentryApp fortnightly. Most recently, El Tubero 2.0 was updated on October 29, 2026 and SentryApp on October 25, 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.*