CORIOmaster vs OSC Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CORIOmaster
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CORIOmaster enables you to control all your local devices of tvone's CORIOmaster series over the network. You will have to be in the same network as your devices.
OSC Timer
This app provides advanced, customizable timer functionality controlled via Open Sound Control (OSC). It allows for real-time adjustments, multiple simultaneous timers, and dynamic display layouts for presentations and entertainment.
- Real-time OSC control
- Multiple simultaneous timers
- Customizable display layouts
- Broadcast time and messages
- Extensive OSC API
- System time display
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In the fast-paced world of presentations and entertainment, timing is everything. Yet, integrating show control software with traditional timer equipment has long been a challenge. Enter OSC Timer—a powerful, customizable solution designed to seamlessly bridge this gap. With Open Sound Control (OSC) embedded in nearly every show control software today, OSC Timer offers a robust and scalable timer that perfectly fits into any networked AV setup. Whether you need a single timer or multiple, OSC Timer adapts to your needs, providing unparalleled control and flexibility. Real-time Control & Customization: Thanks to OSC, you can control every aspect of the timer in real time—from starting, stopping, and resetting to adjusting colors, scaling, and at-end behaviors—all on the fly. The app’s versatility allows for multiple timers to run simultaneously, display system time, and even send OSC messages triggered at user-defined intervals. Enhanced Broadcast Features: Broadcast time, warnings, or custom messages across your network with ease. OSC Timer can subscribe to or unsubscribe from specific OSC messages, ensuring precise communication throughout your show. Dynamic Layout & Display: Arrange your timer display to suit your event’s needs—whether it’s a single timer dominating the screen or a multi-slot layout showing different timers, broadcasts, or even a system clock. The display is fully flexible, allowing you to tailor it perfectly to your requirements. Extensive OSC API: Explore the full potential of OSC Timer with an extensive OSC API that lets you manipulate everything from font size and alignment to background colors and border styles. Whether it’s adjusting the brightness, setting the text alignment, or configuring alert zones, OSC Timer gives you the tools to create the perfect timing setup. Growing Feature Set: OSC Timer is constantly evolving. We welcome feature requests at osctimer@rasmuskreiner.dk, and we’re committed to making this app the ultimate tool for time management in the entertainment and presentation industries. For a complete list of features, templates, and the full OSC API, visit http://rasmuskreiner.dk/OSCTIMER/OSCTIMER.html.
Screenshots
Verdict
The clearest difference is price: CORIOmaster at Free against OSC Timer's $3.99. CORIOmaster also leads on iOS requirement (11.0 vs 16.0). On update cadence, 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
CORIOmaster is free to download; OSC Timer costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
CORIOmaster ships an update every 11 months, OSC Timer every 9 months. The most recent releases landed on October 1, 2026 and October 14, 2026 respectively.
| Parameter | CORIOmaster | OSC Timer |
|---|---|---|
| Price | Free — better | $3.99 |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 11 months | Every 9 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 18 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | tvone limited | Rasmus Kreiner |
In-app purchases
CORIOmaster
No in-app purchases
OSC Timer
No in-app purchases









