Basic Calendar vs SkyVoice Holy Micro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Basic Calendar
This app offers a clean, monthly view of your Apple Calendar data. Personalize your schedule with color themes and stay on top of appointments with home screen widgets. Easily manage your events at a glance.
- Monthly calendar view
- Apple Calendar integration
- Customizable color themes
- Home screen widgets
- Intuitive user interface
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Basic Calendar is an app that conveniently displays your Apple Calendar data in a monthly view. With a clean design and intuitive user interface, you can easily view and manage your schedule at a glance. Additionally, it supports various color themes, allowing you to personalize your experience and differentiate your events using different visual styles. The app also features widget functionality, ensuring that you never miss important appointments even from your home screen.
SkyVoice Holy Micro
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SkyVoice Alert LHA is the official companion app for Holy Micro! aviation safety devices, including SkyVoice Alert LHA 500 and SkyVoice Glassy Guide 400. The app helps pilots connect to supported devices, access device controls, manage logs, view instructional content, and perform firmware updates directly from an iPhone or iPad. Aviation Safety at Your Fingertips SkyVoice Alert LHA 500 • FAA-approved Take-off and Landing Height Announcer • LiDAR-based height callouts from 500 ft to 1 ft • LiDAR range up to 590 ft • Repeated landing gear warnings from 560 ft until gear is down and locked • Bluetooth or wired headset/HUD support • User-selectable reminders for Gear, Checklist, LC GUMPS, Flaps, Speed, Clearance, Pump, Oxygen, IFR Altimeter, Top of Descent, Fuel, and Tank checks etc.. SkyVoice Glassy Guide 400 • FAA-approved height annunciator for landplanes and seaplanes • Accurate operation over both water and land • Radar-based range up to 400 ft • Bluetooth or wired audio connectivity • Up to four gear reminders • Portable Quick Install version available with rechargeable battery • Lightweight aircraft-grade aluminum enclosure App Features Connect to Your Devices • Dedicated access for SkyVoice Alert and Glassy Guide devices • Connect through device-specific Wi-Fi networks • Open device web interfaces directly from the app • Quick access to monitoring and configuration tools Log Management • Download device log files and raw log files • Manage stored logs locally • Upload logs to Holy Micro support for analysis • Send individual files or multiple files at once Over-the-Air (OTA) Updates • Check for available firmware updates • Download and validate update packages • Install firmware updates directly from the app • View release notes and update information before installation Instructional Videos • Access installation and operation guides • Learn how to install and use SkyVoice Alert and Glassy Guide products • Watch educational videos directly within the app Designed for General Aviation SkyVoice products are trusted by pilots flying a wide range of general aviation aircraft, including: • Cessna • Piper • Beechcraft • Diamond • Mooney • Seaplanes and other compatible aircraft Why SkyVoice? Visual illusions can affect altitude perception during takeoff and landing. SkyVoice devices provide precise audio callouts, landing gear reminders, and operational alerts to help improve situational awareness and support safer flying. Stack the odds in your favor. Install SkyVoice. Fly Safely. Note: This application is intended for use with compatible Holy Micro! SkyVoice hardware devices. Certain features require connection to a supported SkyVoice device and/or an active internet connection.
Screenshots
Verdict
The clearest difference is in-app purchases: SkyVoice Holy Micro at none against Basic Calendar's 2. SkyVoice Holy Micro also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads 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. Basic Calendar sells 2 one-off in-app purchases. SkyVoice Holy Micro asks for nothing beyond the download.
Basic Calendar ships an update every 2 weeks, SkyVoice Holy Micro weekly. The most recent releases landed on September 17, 2026 and September 18, 2026 respectively.
| Parameter | Basic Calendar | SkyVoice Holy Micro |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 111 MB |
| Age rating | 4+ | 4+ |
| Developer | dotori king | Spectrum Software Solutions, Inc. |
In-app purchases
Basic Calendar
- Buy Me a Coffee$0.99
- Remove Ads$3.99
SkyVoice Holy Micro
No in-app purchases
Questions
Is Basic Calendar free?
Is SkyVoice Holy Micro free?
Do Basic Calendar or SkyVoice Holy Micro have ads?
Which is updated more often, Basic Calendar or SkyVoice Holy Micro?
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