Millennium Tower vs OpenDisplay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Millennium Tower
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An all-in-one tool for your workday, the Millennium Tower tenant experience platform allows you to book rooms, discover amenities, find your community, and so much more. Bring out the best in your workday, with Nuveen.
OpenDisplay
Transform your iPhone or iPad into a genuine second display for your Mac. This open-source solution allows you to extend your screen space, keeping essential apps visible. Connect via USB for minimal latency or Wi-Fi for easy setup.
- Use iPhone/iPad as a second Mac display
- Connect via USB or Wi-Fi
- Retina-sharp rendering
- Touch and scroll support
- Portrait or landscape orientation
- Private by design, no tracking
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OpenDisplay turns your iPhone or iPad into a second display for your Mac. It's the open-source way to put your spare Apple device to work as a real extended monitor — drag windows onto it, keep chat, notes, or logs in view, and gain screen space anywhere you go. It's not a mirror: it's a genuine additional display your Mac treats like any other monitor. • Real extended display — arrange it in your Mac's Display settings and drag windows across • Connect over USB for the lowest latency, or over Wi-Fi with zero setup • Retina-sharp, pixel-for-pixel rendering • Touch and scroll — tap, drag, and two-finger scroll to control your Mac • Works in portrait or landscape • Private by design — a direct connection between your own devices, with no accounts, no servers, and no tracking IMPORTANT: OpenDisplay requires the companion OpenDisplay app for Mac, running on your computer on the same cable or Wi-Fi network. Get it at https://peetzweg.github.io/opendisplay — without it, this app has nothing to connect to. OpenDisplay is open source under the GPL-3.0 license. Read the code, report issues, or contribute at https://github.com/peetzweg/opendisplay
Screenshots
Verdict
Millennium Tower and OpenDisplay are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Millennium Tower ships an update fortnightly, OpenDisplay every 8 days. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.
| Parameter | Millennium Tower | OpenDisplay |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (14 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 14 — better |
| Update frequency | Fortnightly | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 169 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Livelyhood, Inc. | Philip Poloczek |
In-app purchases
Millennium Tower
No in-app purchases
OpenDisplay
No in-app purchases
Questions
Is Millennium Tower free?
Is OpenDisplay free?
Do Millennium Tower or OpenDisplay have ads?
Which is updated more often, Millennium Tower or OpenDisplay?
Other comparisons
