# BTX 311 vs BendMarks

The clearest difference is price: BTX 311 at Free against BendMarks's $14.99. BendMarks's advantage is update cadence (every 3 weeks vs every 5 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

BTX 311 is free to download; BendMarks costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BTX 311 ships an update every 5 months, BendMarks every 3 weeks. The most recent releases landed on August 16, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | BTX 311 | BendMarks |
| --- | --- | --- |
| Price | **Free** | $14.99 |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/btx-311/id1662494737/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | **Free** | Paid |
| Size | 149 MB | 2 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [The City of Burleson](https://appshunter.io/developer/1662494739) | [BigBalli Consulting llc](https://appshunter.io/developer/363765325) |

## What reviewers say

### BTX 311

[App page](https://appshunter.io/ios/app/btx-311/id1662494737)

Connect with your city services directly from your smartphone. Submit and track non-emergency service requests, access knowledge articles, and engage with city departments like never before.

**Highlights:** Submit new service requests, Track existing requests, Attach photos to requests, Map request locations, Access knowledge base, Connect with city departments

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

**In-app purchases:** none


### BendMarks

[App page](https://appshunter.io/ios/app/bendmarks-conduit-bending/id6762065884)

This app calculates conduit bending, voltage drop, and fill capacities for electrical work. It provides detailed formulas and diagrams for each calculation, helping users understand the underlying math. Designed for field use with offline functionality and glove-friendly controls.

**Highlights:** Conduit bending calculations with diagrams, Voltage drop analysis, Conduit fill calculations, Box fill calculations, Step-by-step formula explanations, Offline functionality, Support for multiple NEC code cycles

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

**In-app purchases:** none


## Frequently asked questions

### Is BTX 311 free?

BTX 311 is free to download, with no in-app purchases.

### Is BendMarks free?

BendMarks costs $14.99, with no in-app purchases.

### Do BTX 311 or BendMarks have ads?

Neither BTX 311 nor BendMarks shows ads.

### Which is updated more often, BTX 311 or BendMarks?

BTX 311 ships an update every 5 months, and BendMarks every 3 weeks. Most recently, BTX 311 was updated on August 16, 2026 and BendMarks on September 12, 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.*