# Big Calculator Low Vision vs Skyle

The clearest difference is review sentiment: Big Calculator Low Vision at 100% against Skyle's 0%. Big Calculator Low Vision also leads on device support (3 vs 1). Skyle's advantage is price (Free vs $1.99) and update cadence (every 3 weeks vs every 15 months). On ads, in-app purchases and iOS requirement there is nothing between them.

Skyle is free to download; Big Calculator Low Vision costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Big Calculator Low Vision ships an update every 15 months, Skyle every 3 weeks. The most recent releases landed on October 29, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Big Calculator Low Vision | Skyle |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/big-calculator-low-vision/id1177115993/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 8 MB | 74 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [N Thorn](https://appshunter.io/developer/630929549) | [eyeV GmbH](https://appshunter.io/developer/1483770516) |

## What reviewers say

### Big Calculator Low Vision

[App page](https://appshunter.io/ios/app/big-calculator-low-vision/id1177115993)

This utility app features a high-contrast, large-button calculator designed for users with visual impairments or low dexterity. It offers multiple color modes for optimal clarity in various lighting conditions.

**Highlights:** High contrast color modes, Large clear buttons, Designed for low vision, Aids low dexterity users, Multiple lighting clarity

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Skyle

[App page](https://appshunter.io/ios/app/skyle/id1483770517)

This utility app provides video streaming and guided indicators for precise eyetracker positioning. It offers multiple calibration points with quality feedback and allows users to record samples to enhance eye-tracking accuracy. Users can also configure switch gestures and actions for customized control.

**Highlights:** Video stream with guided indicators, 5 and 9 point calibration, Calibration quality indicators, Manual feedback form, Eyetracker firmware updates, Sample recording for eye-tracking improvement, Switch configuration with gestures

**In-app purchases:** none


## Frequently asked questions

### Is Big Calculator Low Vision free?

Big Calculator Low Vision costs $1.99, with no in-app purchases.

### Is Skyle free?

Skyle is free to download, with no in-app purchases.

### Do Big Calculator Low Vision or Skyle have ads?

Neither Big Calculator Low Vision nor Skyle shows ads.

### Which is updated more often, Big Calculator Low Vision or Skyle?

Big Calculator Low Vision ships an update every 15 months, and Skyle every 3 weeks. Most recently, Big Calculator Low Vision was updated on October 29, 2026 and Skyle on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*