i vs TD CoPilot
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
i
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i-Click allows you to control your world wirelessly via the iClick or iControl hardware products available from Pretorian Technologies. The iClick hardware allows you to switch one or two mains appliances on and off, such as lamps, fans and food processors. iControl is for battery powered products such as switch adapted toys. One or two buttons are shown on screen and their colour and appearance may be changed to suit individual requirements. You can also replace each button with a photograph taken right from your iPad to give the buttons increased relevance. You can even add some text to each button. The app is fully accessible using iOS Switch Control. Choose from the following modes: Direct- touch and the appliance comes on- release and the appliance turns off. Use for appliances that shouldn’t be continuously energised such as food mixers. Latched- touch one and the appliance comes on- touch again and it turns off. Use for appliances that may need to be on for extended periods such as lamps. Timed- touch to turn on for a given amount of time between 1 second and 250 minutes. Co-operative Direct- for two users. Both on-screen buttons must be touched for the appliance to turn on. Great for teaching co-operation. Co-operative Latched- for two users. Both on-screen buttons must be touched for the appliances to turn on and then back off again. Co-operative Timed- for two users. Both on-screen buttons must be touched for the appliances to turn on for a timed period. On/Off- for either one or two users. Button 1 turns on the appliances and button 2 turns them off again. You could, for example, have a photo of a lamp turned on for button 1 and turned off for button 2. Please note that you will need the hardware products to be able to make use of this app. More information can be found at www.pretorianuk.com/output-devices
TD CoPilot
This app calibrates eye tracking devices for optimal performance and user experience. It also provides access to device settings, firmware updates, and battery status information.
- Eye tracker calibration
- Device settings customization
- Firmware update tracking
- Application version display
- Battery status verification
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TD CoPilot is the iOS-based eye tracking calibration app for your Tobii Dynavox device. Like all eye tracking systems, this device requires calibration. That's where the TD CoPilot app comes in. Quick and easy calibrations ensure your device is accurate, works correctly and delivers the best experience. The TD CoPilot app also provides access to general information such as settings, firmware updates, version numbers, and battery status. TD CoPilot functions: • Keeps your device in peak operating form by calibrating the eye tracker to your eyes • Customizes device settings to meet your specific needs • Tracks hardware updates and lets you explore the latest features and user experiences of your device • Tells you the application version • Verifies the status of your device battery life
Verdict
The clearest difference is update cadence: TD CoPilot at every 2 months against i's every 75 months. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
i ships an update every 75 months, TD CoPilot every 2 months. The most recent releases landed on October 29, 2026 and October 20, 2026 respectively.
| Parameter | i | TD CoPilot |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.7 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 75 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPad | iPad |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 2 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Pretorian Technologies | Tobii Dynavox LLC |
In-app purchases
i
No in-app purchases
TD CoPilot
No in-app purchases









