# iPocket BA vs InterFast

The clearest difference is price: InterFast at Free against iPocket BA's $48.99. InterFast also leads on in-app purchases (none vs 1) and update cadence (every 2 weeks vs every 4 months). On ads, device support and iOS requirement there is nothing between them.

InterFast is free to download; iPocket BA costs $48.99 up front. iPocket BA sells 1 one-off in-app purchase. InterFast asks for nothing beyond the download.

iPocket BA ships an update every 4 months, InterFast every 2 weeks. The most recent releases landed on August 31, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | iPocket BA | InterFast |
| --- | --- | --- |
| Price | $48.99 | **Free** |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Paid | **Free** |
| Size | 2 MB | 61 MB |
| Requires iOS | 15.6 | **15** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eric POUSSE](https://appshunter.io/developer/298005432) | [Interfast](https://appshunter.io/developer/1536410981) |

## What reviewers say

### iPocket BA

[App page](https://appshunter.io/ios/app/ipocket-ba/id298005429)

This app provides a suite of calculation utilities for structural engineering, focusing on reinforced concrete elements according to Eurocode 2 and BAEL 91 rules. It includes tools for calculating moments, stresses, and deflections of beams, as well as analysis for rectangular sections, compression columns, foundations, and retaining walls.

**Highlights:** Reinforced concrete calculations, Eurocode 2 and BAEL 91 compliance, Beam moment, stress, and deflection analysis, Rectangular section analysis, Compression column analysis, Foundation and retaining wall calculations, Steel bar diameter selection

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hypothèses Eurocodes | $21.99 | one-time |


### InterFast

[App page](https://appshunter.io/ios/app/interfast/id1536410979)

This all-in-one construction app simplifies business management with tools for quotes, invoices, and client portals. It offers features for project planning, site management, and financial tracking, including bank connections.

**Highlights:** Quotes, Invoices, Credit Notes, Price Library, Treasury & Bank Connection, Scheduling, Site & Intervention Management, Client Management & Portal

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is iPocket BA free?

iPocket BA costs $48.99, and also offers in-app purchases.

### Is InterFast free?

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

### Do iPocket BA or InterFast have ads?

Neither iPocket BA nor InterFast shows ads.

### Which is updated more often, iPocket BA or InterFast?

iPocket BA ships an update every 4 months, and InterFast every 2 weeks. Most recently, iPocket BA was updated on August 31, 2026 and InterFast on October 3, 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.*