# Concentric App vs Send Direct Messages

The clearest difference is in-app purchases: Concentric App at none against Send Direct Messages's 1. Concentric App also leads on iOS requirement (11.0 vs 17.6). Send Direct Messages's advantage is update cadence (every 2 weeks vs every 5 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Send Direct Messages sells 1 one-off in-app purchase. Concentric App asks for nothing beyond the download.

Concentric App ships an update every 5 weeks, Send Direct Messages every 2 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Concentric App | Send Direct Messages |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/concentric-app/id1566825092/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 91 MB | 12 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bhawan Baweja](https://appshunter.io/developer/1447874386) | [Dywtal Digital](https://appshunter.io/developer/1862262628) |

## What reviewers say

### Concentric App

[App page](https://appshunter.io/ios/app/concentric-app/id1566825092)

This platform helps educators and student advocates conduct home visits and phone calls to re-engage students. It allows for viewing and completing visit details, tracking progress across academic years, and managing assignments. Features include route planning with map integration and bulk data import for efficient student outreach.

**Highlights:** Home visit and phone call management, Student re-engagement tracking, Route planning with map navigation, Data import for bulk assignments, Assignment status filtering, Cross-academic year data view

**Features:** macOS Compatibility

**In-app purchases:** none


### Send Direct Messages

[App page](https://appshunter.io/ios/app/send-direct-messages/id6757652648)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Upgrade | $2.99 | one-time |


## Frequently asked questions

### Is Concentric App free?

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

### Is Send Direct Messages free?

Send Direct Messages is free to download, with in-app purchases available.

### Do Concentric App or Send Direct Messages have ads?

Neither Concentric App nor Send Direct Messages shows ads.

### Which is updated more often, Concentric App or Send Direct Messages?

Concentric App ships an update every 5 weeks, and Send Direct Messages every 2 weeks. Most recently, Concentric App was updated on November 3, 2026 and Send Direct Messages on November 5, 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.*