# Concurrent vs ASK4 Diagnostics

The clearest difference is review sentiment: Concurrent at 20% against ASK4 Diagnostics's 0%. Concurrent also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Concurrent ships an update every 4 months, ASK4 Diagnostics every 3 months. The most recent releases landed on June 1, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Concurrent | ASK4 Diagnostics |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **20.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 32 MB | 53 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [StuRents](https://appshunter.io/developer/1380294414) | [ASK4 Ltd](https://appshunter.io/developer/1123016758) |

## What reviewers say

### Concurrent

[App page](https://appshunter.io/ios/app/concurrent/id1380294415)

Manage your tenancy digitally with all important documents, payment schedules, and communication tools in one place. Track rent payments, report maintenance issues with photos, and connect with your community through a news feed and event listings.

**Highlights:** Digital tenancy document hub, Rent payment tracking and reminders, Maintenance ticket reporting with photos, Direct messaging with property manager, Community news feed and event discovery, Real-time maintenance ticket notifications

**In-app purchases:** none


### ASK4 Diagnostics

[App page](https://appshunter.io/ios/app/ask4-diagnostics/id1455988601)

This utility app performs various network tests and diagnostics. It's designed to help support agents quickly identify and resolve internet connectivity issues. Share the collected data with a support representative to expedite problem-solving.

**Highlights:** Runs network tests, Performs diagnostics, Shares test results, Aids support agents, Troubleshoots internet issues

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Concurrent free?

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

### Is ASK4 Diagnostics free?

ASK4 Diagnostics is free to download, with no in-app purchases.

### Do Concurrent or ASK4 Diagnostics have ads?

Neither Concurrent nor ASK4 Diagnostics shows ads.

### Which is updated more often, Concurrent or ASK4 Diagnostics?

Concurrent ships an update every 4 months, and ASK4 Diagnostics every 3 months. Most recently, Concurrent was updated on June 1, 2026 and ASK4 Diagnostics on September 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.*