Color Alerts vs TigerText

Color Alerts makes it easy to receive alerts when your favorite colors are detected. Use the Capture button at the bottom center of the screen to save the color currently visible within the capture area. Once a color is captured, you can choose the alert or vibrate option you would like to hear or feel whenever the camera detects that color. Your saved colors can be viewed and managed by selecting the Saved Colors icon in the upper-left corner of the screen. From there, you can enable or disable individual colors, allowing you to choose exactly which saved colors you want Color Alerts to monitor. For more accurate color detection, Color Alerts provides several ways to fine-tune what the camera is monitoring. Adjust the zoom above the Capture button, change the size of the capture area using the control on the right side of the screen, or use the Custom Controls panel to fine-tune your color selection and detection settings. Once your color and detection settings are configured, simply position your device where you want it to monitor. When one of your enabled colors appears within the capture area, Color Alerts will notify you with your selected alert.

TigerText is the easiest way to add alt text to photos on iPhone — and it's now completely free. Point it at any photo and TigerText writes a clear, accurate description of what's in it. The description is saved into the photo's own metadata, so it travels with the image when you post or send it. Mastodon, Bluesky, and any other app that reads standard image metadata will pick it up automatically. Everything happens on your iPhone. No internet connection. No account. No ads. No tracking. WHY ALT TEXT MATTERS Alt text is how a photo becomes readable to someone using a screen reader. Without it, an image is just "photo" — no content, no context. Writing it by hand for every picture is real work, and that's why so many images go undescribed. TigerText does the first draft in seconds so you can post with a description instead of without one. FULLY OFFLINE, GENUINELY PRIVATE TigerText runs a vision-language AI model that ships inside the app. Your photos are never uploaded, never sent to a server, and never seen by anyone but you. It works on a plane, in a basement, or with your phone in airplane mode — because there's nothing to connect to. Privacy here isn't a policy promise. It's how the app is built. There is no server to trust, because there is no server. BUILT WITH THE COMMUNITY IT SERVES TigerText was shaped by feedback from blind and low-vision users, and it's designed to be used entirely with VoiceOver — not merely to pass an accessibility checklist. Every control is labeled, every action is announced, and the whole flow works without ever needing to see the screen. That includes the parts people usually forget: you can hear the description read aloud before you save it, edit any wording you disagree with, and know immediately whether a photo already has alt text. WHAT YOU CAN DO • Describe any photo in your library, one at a time or in batches • Hear any description read aloud before you commit to it • Edit the wording — it's your description, the AI just drafts it • See at a glance which photos already have alt text and which don't • Add descriptions to animated GIFs without losing the animation • Send photos straight from the Photos share sheet • Share a photo with the description already embedded FREE, AND STAYING THAT WAY Every feature is free forever. There is no paid tier, no subscription, no in-app purchase, no locked content, and no ads. TigerText uses the Qwen2-VL model (Apache 2.0) running through Apple's MLX framework. The bundled model is verified with a SHA-256 integrity check on every new version, so you always run the genuine, untampered model. A NOTE ON THE DOWNLOAD SIZE TigerText is a big download, and that is the whole point. The entire AI model lives inside the app instead of on a server somewhere. Nothing is streamed, nothing is fetched, and none of the work happens on someone else's computer. Download it once and it works forever. On a plane. In a tunnel. In a basement with no signal. On a trip with no data plan. There is no server to go down, no API to get shut off, no subscription to lapse, and no spinner while something uploads. Your photos are never part of anybody's dataset, because they never leave your phone. Most apps that describe images send your pictures away to do it. TigerText carries the whole thing with you instead. That's what makes TigerText a true offline utility: the big download is the feature. Install it once over Wi-Fi, and describing a photo never needs a network again.