Audio Eyes vs Formula Kit
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Audio Eyes
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The Science Museum Audio Eyes app has been designed with and for blind and partially sighted visitors. It unlocks audio descriptions in a selection of major galleries at the Science Museum in London, describing the environment, key objects and tactile displays. The app helps independent discovery โ it does not give a step-by-step route, but responds to your movements in the gallery. It includes over 100 descriptions. Currently the app is available in Medicine: The Wellcome Galleries, a suite of five galleries on level 1 of the museum exploring the history of medicine, and in the Information Age gallery on level 2, which explores how information and communication technologies have transformed our lives. How to use the app This app only works in the specific galleries at the Science Museum described above. It picks up Bluetooth signals around the gallery, which automatically trigger audio notifications on your iPhone. We recommend listening to the app introduction before visiting the museum so you can familiarise yourself with how to use it. This introductory information also describes how to locate the galleries. The app requires approximately 500MB of memory space. As it features audio content and bespoke gestures, it is very difficult to use with voice-over turned on. If you would prefer not to download the app onto your own device, you can borrow a device with the app installed from the Information Desk near the entrance to the Science Museum. Tips for the best experience 1. Turn Bluetooth on in your Settings. 2. Remove any metal covers from your phone, as they can affect the signal. 3. Pause as you move around the galleries to give the device enough time to pick up the signals. 4. Visit at quieter times, before 11.00 or after 14.30, avoiding weekends and school holidays. This is an innovative project using new Bluetooth beacon technology. If you have any feedback, please get in touch with us at smapps@sciencemuseum.org.uk
Formula Kit
Easily create, edit, and export mathematical and scientific formulas with a dedicated LaTeX editor. Features real-time rendering, a custom keyboard, and extensive template library for offline use.
- Real-time LaTeX rendering
- Over 400 formula templates
- Custom auxiliary keyboard
- Image and code export
- Formula library and management
- Offline functionality
- History and preview
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Type, edit and export LaTeX formulas in one app: change a formula right in the preview or edit the LaTeX source itself; photos, images and handwriting all turn into editable code; 544 templates, a 258-symbol keyboard, live KaTeX rendering and one-tap high-res PNG / LaTeX / MathML export. Whether you are writing academic papers, preparing lesson notes, or organizing science and engineering notes, you can input, edit and export formulas in one app. Core Features โข Preview editing and LaTeX code editing: the preview area is the editing area. Tap a formula to change it on the spot โ what you see is what you get; you can also edit the LaTeX code directly. โข Formula recognition: take a photo, pick one from your photo library, or write by hand โ all are recognized as LaTeX code automatically. โข 258-symbol keyboard: a custom keyboard built for formula input, with a clearly organized symbol panel (8 categories, 258 symbols: common, arithmetic, Greek letters, structures, arrows, functions and more), precise cursor dragging and LaTeX command autocomplete โ much faster input. โข One-tap high-res PNG and LaTeX / MathML export: save a formula as a high-resolution PNG in one tap (no watermark with Pro); export LaTeX, MathML, HTML or SVG code for papers, web pages and slide decks. โข 544 formulas, live preview: 544 built-in formula templates across 14 subjects including math, physics, chemistry and computer science, ready out of the box; rendered in real time with the KaTeX engine so you see results as you type, with instant syntax hints; one-tap favorites and custom categories keep everything organized. โข History and full-screen preview: editing history is saved automatically and easy to browse as thumbnails; full-screen preview appears automatically after you copy a formula. Why Formula Kit โข Lightweight and fast โ quick launch, smooth rendering โข iPhone, iPad and Mac โข Core features are free; upgrade to Pro to unlock full recognition, watermark-free export and unlimited favorites (yearly subscription or lifetime purchase) Who it is for โข Students (high school / university / graduate) โข Teachers and professors โข Researchers โข Engineers and technical writers โข Anyone who needs to type mathematical formulas Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Formula Kit at every 11 days against Audio Eyes's every 54 months. Formula Kit also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Audio Eyes ships an update every 54 months, Formula Kit every 11 days. The most recent releases landed on October 4, 2026 and October 23, 2026 respectively.
| Parameter | Audio Eyes | Formula Kit |
|---|---|---|
| Price | Free | Free |
| Positive reviews | โ | 100.0% of reviews |
| Update frequency | Every 54 months | Every 11 days โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | โ | Paid |
| Devices | iPhone | iPhone, iPad, Mac โ better |
| Requires iOS | 16.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 27 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Science Museum | ็่ฏ ๅ |
In-app purchases
Audio Eyes
No in-app purchases
Formula Kit
No in-app purchases









