Hardware · Open source

ReadForce

Forces any display signal to become readable text.
Whatever app. Whatever platform. Whatever device.

£130 Total parts cost
1 Button to press
0 Apps to install
<2s When running. Boots in under a minute, ready to read in seconds — near instant each time the button is pressed after that.

When the app fails to cooperate

The screen reader has not failed. The app has failed to cooperate. But you experience the same thing either way: silence.

Software screen readers depend entirely on applications voluntarily exposing their content. When an app updates overnight, uses non-standard components, or simply never implemented accessibility support, the screen reader goes quiet with no warning and no recourse for the person who depends on it.

ReadForce does not depend on the app. It reads the pixels your screen is already producing — bypassing the application layer entirely. The accessibility API is irrelevant. The app's implementation is irrelevant. If the screen is showing it, ReadForce reads it.

That is what the name means. Not asks. Not requests. Forces.

The right tool for the right situation

ReadForce does not replace the built-in accessibility tools on most devices — and it is important to say that clearly. VoiceOver on iPhone and Mac, TalkBack on Android, and NVDA on Windows are mature, capable tools. NVDA is completely free. Windows Narrator is built in at no cost. On a modern smartphone, these tools will generally give you a richer experience than ReadForce.

ReadForce exists for when those tools are not available, not working, or not enough. Its primary use is smartphones and tablets — where apps routinely break accessibility without warning and there is no recourse. Beyond that, it works on any device that produces a display signal: kiosks, ATMs, lab equipment, industrial devices, older machines where nothing can be installed. Even a computer showing a BIOS error before the operating system loads.

One button. The same experience. Regardless of what device it is connected to.

A small box. A cable. One button.

Concept sketch — not to scale
Concept sketch of the ReadForce device connected to a smartphone Hand-drawn style sketch showing a smartphone connected by a USB-C cable to the ReadForce device. The phone is on the left in portrait orientation, with a screen area containing four horizontal lines representing on-screen text, and a home bar near the bottom. A USB-C connector is plugged into the bottom edge of the phone. The cable drops down from that connector, runs horizontally to the right, then rises to plug into the left side of the ReadForce device. The ReadForce device is a small rectangular box drawn with a three-dimensional perspective, roughly the size of a paperback book. On its top face is a large oval button — the single control the user presses to trigger a reading. On the front face are a speaker grille and a status LED. A separate power port sits on the right side. A label reads "ReadForce" and a cost annotation reads approximately £130 in parts. Caption reads: connects to any phone, tablet, or laptop via USB-C — works with any device that can mirror its screen, and even many that officially cannot, if you are prepared to do a one-time setup. phone USB-C cable button ReadForce ≈£130 in parts

Connects to any phone, tablet, or laptop via USB-C. Works with any device that can mirror its screen — and even many that officially cannot, if you are prepared to do a one-time setup.

What it is made of
Component Approx. cost
Raspberry Pi mini-computer £65
Video capture card £15
USB-C cables and connectors £15
Button, speaker, LED indicator £10
Enclosure £10
Power supply £10
Total Under £130

All software runs entirely offline and is free for individual and charitable use. No licence fees. No cloud dependency. No subscription.

What devices does it work with?

ReadForce is designed primarily for phones and tablets. Most are supported — flagship Android devices and all iPhones work instantly. Budget Android devices need a one-time two-minute USB Debugging setup.

It also works with any device that produces a display signal: laptops, kiosks, ATMs, lab equipment, industrial screens, and older machines where accessibility software cannot be installed. If it has a display output, ReadForce can read it.

What ReadForce cannot do

ReadForce reads text that is visible on screen. It does not read text inside images, video, or very small or low-contrast text reliably.

It requires a physical USB-C cable connection. There is no wireless version, and this is not an oversight. The cable connection is the source of its core strength — it operates at the signal level, below any software restriction.

Some devices implement copy protection on their display output that prevents signal capture. This affects some content on some streaming apps.

It reads a snapshot of what is on screen when you press the button. It does not follow scrolling automatically, though a continuous reading mode is planned for a future version.

Being honest about these limits is part of what ReadForce is. If one of them matters for your situation, tell us — that is useful information.

Would this have helped you?

There is no form. Email, voice note, or WhatsApp — whatever suits you. A moment when technology let you down is exactly what I want to hear.

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Free for individuals and charities

All hardware schematics, firmware, and build documentation are published for individual and charitable use. Commercial use without permission is not permitted. Licensing details to follow. An Inclusion Vault CIC project.