Comparison

Prompter Duo vs spacedesk

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Prompter Duo

This iPad-exclusive application functions as both a camera and speech teleprompter, enabling smooth script scrolling for presentations and filming. It offers a compact, portable solution for various speaking and recording needs, integrating with hardware for a complete prompter system.

Highlights
  • Camera and speech prompter
  • Smoothly scrolling scripts
  • Count down function
  • Inverted text display
  • Remote control operation
  • Dropbox compatibility
  • Voice recording
Features
Read full description

The World's First! Introducing the Revolutionary New Prompter System, "Prompter Duo"! Serving as both a camera prompter and speech prompter, we are happy to introduce an iPad-exclusive application that will surpass any expectations you may have, even of high-priced prompters! This breakthrough development is a full Prompter System, including both hardware and software. For those who have been left wanting by previous prompters, with cries such as "I'm disappointed by such poor usability," or "There are so many expensive options, but the cost-performance ratio is so low," we at PAGE ONE CO., LTD are here to help. Our Prompter System is a major breakthrough that will solve all of these problems. By combining our iPad application "Prompter Duo" and our exclusive hardware, a single piece of hardware can act as both a camera and speech prompter, forming the world's first ever Prompter System. Anyone with an iPad can take advantage of this system at no additional cost, and there is no need to have an extra PC or even a power supply handy. Compact and easy to carry, whether for personal or business use, this prompter is ready for any situation. Most of all, it will serve as the perfect support system for your speech, all at a competitive price. PAGE ONE is a developer and manufacturer of prompters, ranked number one in market share in Japan. Starting with NHK in 1995, our systems have been installed in the offices of broadcasters and large firms for years. -------------------------------------------------- The "Prompter Duo" application is an iPad-exclusive prompter that allows for simple creation of smoothly scrolling scripts. It excels as the perfect partner for anyone who may need to give a speech or presentation, including those involved in the filming of commercials, teachers and lecturers, students, event hosts, conference presenters, those recording movies for submission on the Internet, those filming merchandise advertising for e-commerce sites, and so on. "The supporting force behind your every speech!" Main Functions ・Count Down Function (ON/OFF, seconds) ・Display Direction (automatic, vertical, horizontal) ・Inverted Text Display (allows for use of half-mirrored speech and camera prompters) ・Consecutive Playback ・Automatic Start ・Scroll Speed (allows for realtime editing with locater display) ・Marker display ・Multiple Fonts ・Multiple Font Sizes ・Multiple Font Colors ・Background Colors ・Display Screen Editing (Editor Mode/Display Screen Mode) ・Setting of Cue Point (swipe to switch cue points) ・Voice recording ・Remote control operation using the dedicated remote control app "Duo Remote" Dropbox Compatibility Feature (Use Dropbox to acquire and share text) Allows for direct input, download, and sending of text via e-mail. Support Page http://www.pageone.co.jp/prompter/duo/support/ Page One Website http://www.pageone.co.jp/prompter/prompter_index.html

About

spacedesk

Extend your Windows PC's desktop to another device wirelessly or via USB. Use your tablet or phone as a drawing tablet or a portable second monitor for travel and productivity.

Highlights
  • Windows desktop extension
  • Screen mirroring
  • Remote desktop viewer
  • Drawing tablet functionality
  • Wireless display monitor
  • USB display monitor
  • Remote control
Features
Read full description

Windows computer desktop extension, mirroring and remoting tool for WiFi, USB or LAN. Supports applications like: - Screen Cast (to television, tablet or smart phone) - Desktop Remoting Viewer (over USB and Local Area Network) - Drawing Tablet (drawing and painting with digitizer pen) - Wireless Display Monitor (similar to Miracast, RDP, AirPlay and Sidecar) - USB Display Monitor (similar to DisplayLink) - Remote Access (over USB link, WiFi and LAN) - Remote Control (wireless and wired) - Screen Streaming (including audio) - Screen Mirroring (over the air and via cable) - Screen Cloning - Extension Screen - Windows Desktop Workspace Extension - Windows Desktop Duplication (clone) - Windows Desktop Streaming - Personal Computer Desktop Presenter - Virtual Monitor for Desktop PC - Second Display On The Go - TV, mobile or tablet screen as Side by Side Display - Alternative to Miracast, AirPlay and Sidecar - Portable Multimonitor Screen for Travel - Access main computer from mobile device - Software KVM-Switch (Keyboard Video Mouse) - Software Display Hub - Software Display Switch - Projector Screen Viewer - Input Console - Input Terminal - Tablet Input Device - Windows Graphics Tablet App - Windows Tablet as sketchbook for drawing artwork - Creative Video Wall App - Video Wall w. Any Angle Rotation Instruction manual, documentation and detailed setup: https://manual.spacedesk.net Quick Guide: 1. Install spacedesk DRIVER software for Windows Primary PC. Download from: https://www.spacedesk.net 2. Install this spacedesk Viewer app for iOS. 3. Open this spacedesk Viewer app and connect to Windows Primary PC. Connection: USB or LAN (Local Area Network). LAN: Driver and Viewer must be on the same network - via Mobile Hotspot Note: Does NOT need internet connection! The Windows Primary Machine running spacedesk Driver... ...supports Windows 11, Windows 10 or Windows 8.1. Apple Macs are not supported. Dual monitor and multi monitor configurations are supported. Needs spacedesk drivers installed. Download: https://www.spacedesk.net The Secondary Machine or Device (iOS network display client)... ...is an iPad, iPhone or device running the spacedesk iOS app. The wireless and wired cable connection... ...connects Windows Primary Machine to Secondary Machine or Device over USB, LAN (Local Area Network e.g. Ethernet) and/or WLAN (Wireless Local Area Network). Local Area Network connection can be wired or over WiFi. TCP/IP network protocol is required. More information on: https://www.spacedesk.net Instruction Manual: https://manual.spacedesk.net/ Support Forum: https://forum.spacedesk.net/ Facebook: https://www.facebook.com/pages/spacedesk/330909083726073 Youtube: https://www.youtube.com/watch?v=YkWZSwBD-XY — LIGHTNING FAST — To achieve unparalleled performance and display quality with zero lag, use cable connection over USB or Local Area Network. Try to circumvent WiFi and network routers. E.g. configure Windows PC or iOS device as WiFi Access Point (Hotspot) and connect directly before connecting spacedesk. Please check chapter "Performance Tuning" in the instruction manual: https://manual.spacedesk.net — REMOTE CONTROL INPUT AND OUTPUT PERIPHERAL ACCESSORIES — - Touchscreen (multitouch and single touch - Touchpad - Mouse Pointer Control - Keyboard - Pressure Sensitive Stylus Pen - Audio Speaker — SETTINGS AND OPTIONS — - Landscape View - Portrait View — SYSTEM SUPPORT — Supported are iOS versions 11.x+ (including MacOS on Apple Silicon Chips) and PCs with Windows 11, Windows 10 and Windows 8.1. Apple Macs are not supported.

Screenshots

spacedesk4 screens

Verdict

The call

The clearest difference is rating: spacedesk at 4.7 against Prompter Duo's 4.1. spacedesk also leads on review sentiment (71% vs 33%) and update cadence (every 3 weeks vs every 10 months). Prompter Duo's advantage is in-app purchases (none vs 11). On price, ads and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. spacedesk sells 11 one-off in-app purchases. Prompter Duo asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

spacedesk holds the better App Store score, 4.7 against 4.1. That said, the two scores are not equally well evidenced: spacedesk has 2.2K ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 33% of Prompter Duo's written reviews are positive against 71% of spacedesk's.

UpkeepUpdate frequency

Prompter Duo ships an update every 10 months, spacedesk every 3 weeks. The most recent releases landed on October 5, 2026 and October 20, 2026 respectively.

Scorecard7 real differences · 3 level
Prompter Duo versus spacedesk: the parameters behind the verdict, then further details
ParameterPrompter Duospacedesk
PriceFreeFree
Rating4.1 (9 ratings)4.7 (2.2K ratings) — better
Positive reviews33.3% of reviews71.3% of reviews — better
Number of ratings92.2K — better
Update frequencyEvery 10 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPadiPhone, iPad, iPod — better
Requires iOS10.09.3 — better
Further details — not scored
Size41 MB17 MB
Age rating4+4+
DeveloperPage One Co., Ltd.datronicsoft Technology GmbH

Customer experience

Prompter Duo

All ratings9 ratings
Positive77.8%
Neutral11.1%
Negative11.1%
Written reviews9 reviews
Positive33.3%
Neutral22.2%
Negative44.4%

spacedesk

All ratings2,195 ratings
Positive94.8%
Neutral1.2%
Negative4.0%
Written reviews898 reviews
Positive71.3%
Neutral7.2%
Negative21.5%

In-app purchases

None

Prompter Duo

No in-app purchases

11 purchases

spacedesk

One-time11
  • Business License: 46-50 Conn.$9.00
  • Business License: 41-45 Conn.$18.00
  • Business License: 1 connection$19.00
Show 8 more
  • Business License: 36-40 Conn.$25.00
  • Business License: 31-35 Conn.$35.00
  • Business License: 26-30 Conn.$45.00
  • Business License: 21-25 Conn.$50.00
  • Business License: 16-20 Conn.$59.00
  • Business License: 11-15 Conn.$60.00
  • Business License: 6-10 Conn.$70.00
  • Business License: 2-5 Conn.$79.00

Questions

Is Prompter Duo free?
Prompter Duo is free to download, with no in-app purchases.
Is spacedesk free?
spacedesk is free to download, with in-app purchases available.
Which has better reviews, Prompter Duo or spacedesk?
spacedesk is rated higher. Prompter Duo averages 4.1 out of 5 from 9 ratings, while spacedesk averages 4.7 from 2.2K ratings.
Do Prompter Duo or spacedesk have ads?
Neither Prompter Duo nor spacedesk shows ads.
Which is updated more often, Prompter Duo or spacedesk?
Prompter Duo ships an update every 10 months, and spacedesk every 3 weeks. Most recently, Prompter Duo was updated on October 5, 2026 and spacedesk on October 20, 2026.

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