Open source alternatives to Between Dates Calendar Math
50 open source Utilities apps to use instead, best rated first.
Top picks
- B
Builder.io
LaunchBuilder.io is a visual headless CMS and development platform that lets teams create, manage, and optimize web pages without constant developer involvement. It integrates with any tech stack (React, Next.js, Vue, etc.) and includes AI-powere
Open source
- E

Elasticsearch
LaunchElasticsearch is an open-source, RESTful search engine designed for scalability, reliability, and easy management.
Open source
- H

Handy
LaunchCross-platform desktop app that transcribes your voice into any text field using a keyboard shortcut, with all processing done locally on your machine.
Open source
- H

Hermes Agent
LaunchCross-platform desktop agent from Nous Research that connects to Telegram, Discord, Slack, WhatsApp, and more, with persistent memory, scheduling, and isolated sandboxing.
Open source
- I

InfluxDB
LaunchInfluxDB handles high-velocity, high-resolution time series data at scale, built for telemetry, edge devices, IoT, and physical AI workloads.
Open source
- K

Kitty
LaunchHigh-performance terminal emulator with GPU acceleration, graphics support, and advanced scripting capabilities for developers and system administrators.
Open source
More Utilities apps
About Between Dates Calendar Math
Between Dates Calendar Math
Between Days was written to quickly tell how many days are between two dates
Between Days was written to quickly tell how many days are between two dates. It uses a simple interface to get these answers in the quickest way possible. Underneath the simplicity, Between Days is one of the most feature rich date apps in the app store. Don’t let the simple interface fool you, this app does show a lot of information in a clean and easy to use format.
- Price
- Paid
- Made by
- Ducky Planet LLC
- Category
- Utilities
- Website
- duckyplanet.com


