OpenDisplay vs isnote
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
isnote
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isnote puts a short note on your Dynamic Island — always in sight, never in the way. Write a reminder, pin it, and see it on the island, Lock Screen, and widgets. When you’re done, dismiss it with one tap, or set it to leave on its own. PIN TO THE ISLAND • Turn any short note into a Live Activity on the Dynamic Island • Choose an icon so you recognize it at a glance • Update the island content anytime without starting over STAY IN CONTROL • Leave manually, in 1 hour, tonight, tomorrow morning, or at a custom time • Get notified when a timed note is due • Control Center control and Shortcuts / Siri to pin or dismiss QUICK PHRASES & ARCHIVE • Built-in phrases for everyday reminders — groceries, medicine, meetings, and more • Save your own reusable phrases • Archive notes, favorite the important ones, edit, sort, and export MADE FOR YOUR ROUTINE • Home Screen widget shows what’s currently pinned • Pin clipboard text via Shortcuts • Optional auto-save when you pin • iCloud sync across your devices • Accent color, app & island text size, language, and toolbar customization isnote is for the things you can’t afford to forget for the next few hours — without another notification pile.
Screenshots
Verdict
The clearest difference is price: OpenDisplay at Free against isnote's $0.99. OpenDisplay also leads on iOS requirement (15.0 vs 18.0). On ads, in-app purchases and device support 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
OpenDisplay is free to download; isnote costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | OpenDisplay | isnote |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.9 (14 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 8 days | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Philip Poloczek | 天成 黄 |
In-app purchases
OpenDisplay
No in-app purchases
isnote
No in-app purchases









