# Symphony Messaging vs 550 Madison

The clearest difference is rating: 550 Madison at 4.3 against Symphony Messaging's 3.4. 550 Madison also leads on iOS requirement (16.0 vs 18.2). On price, ratings volume, update cadence and ads there is nothing between them.

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

550 Madison holds the better App Store score, 4.3 against 3.4. Both are backed by a comparable volume of ratings — 5 and 11 respectively.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Symphony Messaging | 550 Madison |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (5 ratings)](https://appshunter.io/ios/app/symphony-messaging/id1098963705/reviews) | **[4.3 (11 ratings)](https://appshunter.io/ios/app/550-madison/id1564697157/reviews)** |
| Number of ratings | 5 | **11** |
| Positive reviews | 47.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | Free |
| Size | 91 MB | 207 MB |
| Requires iOS | 18.2 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Symphony Communication Services LLC](https://appshunter.io/developer/994389174) | [OAC 550 OWNER LLC](https://appshunter.io/developer/1792946715) |

## What reviewers say

### Symphony Messaging

[App page](https://appshunter.io/ios/app/symphony-messaging/id1098963705)

Secure and compliant messaging for global finance professionals. Connect with a large community, integrate with other apps, and maintain compliance on the go. Offers end-to-end encryption and robust security features.

**Highlights:** Secure and compliant messaging, Global finance platform, Internal and external communication, Interoperability with critical applications, End-to-end encryption, Active surveillance and data loss protection, Federation with external networks

**Features:** Vision Pro support

**In-app purchases:** none


### 550 Madison

[App page](https://appshunter.io/ios/app/550-madison/id1564697157)

This app serves as a virtual hub for building tenants, offering access to exclusive amenities and services. It facilitates reservations for event spaces, dining, and fitness facilities, while also streamlining visitor access and work orders.

**Highlights:** Access building amenities, Book event spaces and dining, Fitness and wellness services, Visitor access control, Work order management, Concierge services

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Symphony Messaging free?

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

### Is 550 Madison free?

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

### Which has better reviews, Symphony Messaging or 550 Madison?

550 Madison is rated higher. Symphony Messaging averages 3.4 out of 5 from 5 ratings, while 550 Madison averages 4.3 from 11 ratings.

### Do Symphony Messaging or 550 Madison have ads?

Neither Symphony Messaging nor 550 Madison shows ads.

### Which is updated more often, Symphony Messaging or 550 Madison?

Symphony Messaging ships an update monthly, and 550 Madison monthly. Most recently, Symphony Messaging was updated on October 14, 2026 and 550 Madison 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.*