Port53 vs ESRT+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Port53
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Port53’s mobile app enhances our Managed Extended Detection and Response service by keeping you connected on the go. Get real-time notifications of events in your environment, collaborate directly with your incident response analyst, confirm actions, and stay informed—anytime, anywhere. Port53 MXDR service contract required for use. Port53’s Managed XDR service delivers full-spectrum detection, triage, and response — driven by Cisco’s advanced XDR platform and operated by our expert SOC analysts.
ESRT+
Enhance your tenant experience with this building management app. Stay informed about building news and events, submit service requests, and access building amenities. It also offers mobile key access and local deals.
- Building news and events updates
- Service request submission
- Mobile key building access
- Local offerings exploration
- Amenity reservations
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ESRT+ is a key part of Empire State Realty Trust’s (ESRT) continuous efforts to improve the tenant experience with enhanced communication and easy access to resources. Download ESRT+ to stay up-to-date on building news and events, make service requests, use mobile key building access, explore local offerings, reserve building amenities, and much more.
Screenshots
Verdict
The clearest difference is iOS requirement: ESRT+ at 16.0 against Port53's 18.5. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Port53 ships an update every 2 months, ESRT+ monthly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.
| Parameter | Port53 | ESRT+ |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.7 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.5 | 16.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 107 MB |
| Age rating | 4+ | 4+ |
| Developer | Port53 Technologies Inc. | Empire State realty Trust |
In-app purchases
Port53
No in-app purchases
ESRT+
No in-app purchases
