# InterFast vs Arkitek

The clearest difference is in-app purchases: InterFast at none against Arkitek's 1. InterFast also leads on iOS requirement (15 vs 18.2). Arkitek's advantage is update cadence (every 4 days vs every 2 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Arkitek sells 1 in-app purchase, starting at $12.99 per month. InterFast asks for nothing beyond the download.

InterFast ships an update every 2 weeks, Arkitek every 4 days. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | InterFast | Arkitek |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 61 MB | 8 MB |
| Requires iOS | **15** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Interfast](https://appshunter.io/developer/1536410981) | [Angel Geoffroy](https://appshunter.io/developer/1794193605) |

## What reviewers say

### 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


### Arkitek

[App page](https://appshunter.io/ios/app/arkitek/id6741438877)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Abonnement Mensuel Arkitek | $12.99 | per month |


## Frequently asked questions

### Is InterFast free?

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

### Is Arkitek free?

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

### Do InterFast or Arkitek have ads?

Neither InterFast nor Arkitek shows ads.

### Which is updated more often, InterFast or Arkitek?

InterFast ships an update every 2 weeks, and Arkitek every 4 days. Most recently, InterFast was updated on October 3, 2026 and Arkitek on October 2, 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.*