Call Todo vs Calndars
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Call Todo
This app helps sales representatives manage call-backs and track call history for short-term projects. Easily create contacts from your clipboard and organize them by project with color-coding. Make calls and send emails directly from the app.
- Create contacts from clipboard
- Project-based contact management
- Call history tracking
- Direct calling and emailing
- Color-coded project organization
- Full-text search
Read full descriptionHide full description
You are a sales representative receiving numerous calls and you find it hard to remember at the end of each day who called you and whom you need to call back. You do not want to overload your address book with contacts for short-term projects. This app will support you with your daily business. It enables you to take notes about your calls and return calls directly from your app. Copy phone numbers from the Apple phone app to the clipboard and open our app “Call Todo”. A new contact will be created automatically. There is no simpler way to do this. Features: - Creating contacts using a phone number from the clipboard - Project-related management of contacts - For each contact a history of events can be compiled. - Filter for projects, calls to do and full text search - Project management using colors - Direct calls to contacts in the app - Direct e-mails from the app - Adding of contacts to address book 'Call Todo' offers the same functionality as 'Call Todo Pro' but it displays advertisements.
Calndars
Effortlessly convert dates between over 30 major calendar systems, including Gregorian, Islamic, and Chinese. This utility is designed for global professionals and researchers needing precise cross-cultural date translations. Integrates with widgets and Shortcuts for seamless workflow.
- Convert dates across 30+ calendar systems
- Supports Gregorian, Islamic, Chinese, Hebrew, Persian, and more
- Native experience on iPhone, iPad, Mac, Apple Watch
- Customizable widgets
- Shortcuts integration
- AppleScript support on macOS
Read full descriptionHide full description
Convert dates across cultures with precision and speed. Calndars is a powerful yet minimal calendar converter designed for global professionals, researchers, and anyone working across time systems. Instantly translate dates between major calendar systems including Gregorian, Hebrew, Islamic, Chinese, Persian, and more. Whether you're coordinating international projects or exploring historical timelines, Calndars delivers accurate results in seconds. Built with modern Apple technologies, the app offers a fast, native experience across iPhone, iPad, Mac, and Apple Watch. Customize your workflow with widgets, favorites, and seamless Shortcuts integration. Designed for efficiency and clarity, Calndars supports over 30 languages and integrates smoothly into your daily tools—without collecting any personal data. A focused utility for a global world. FEATURES - Calndars is the best app to converts dates between the most used calendars in the world. - Select a calendar to set a date, and get the corresponding date in another calendar. - Copy the date to use it in another app. - Add a calendar to the favourites by tapping the star. - Add a calendar to the widgets by tapping the 4 squares icon. - Calendars can be reordered in the list. INTEGRATION - The app supports small, medium and large widgets. - Create a Shortcut in the Apple's Shortcuts App and use the Shortcut everywhere. - Use AppleScript on MacOS for integration between Calndars and other Apps. CALENDARS Calendars to convert between are: - Buddhist - Chinese - Coptic - Ethiopic (Amete Alem) - Ethiopic (Amete Mihret) - Gregorian - Hebrew - indian - Islamic Civil - Islamic Tabular - Islamic Umm Al Qura - Japanese - Persian - Taiwanese - Bangla - Gujarati - Kannada - Malayalam - Marathi - Odia - Tamil - Telugu - Vikram - Dangi - Vietnamese PLATFORM OR DEVICES - iPhone - iPad - Mac - AppleWatch.
Screenshots
Verdict
The clearest difference is price: Call Todo at Free against Calndars's $3.99. Call Todo also leads on iOS requirement (13.0 vs 26.0). Calndars's advantage is rating (5.0 vs 3.5) and update cadence (every 5 weeks vs every 52 months). On ratings volume, ads, in-app purchases 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
Call Todo is free to download; Calndars costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Calndars holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
Call Todo ships an update every 52 months, Calndars every 5 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Call Todo | Calndars |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 3.5 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 52 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 15 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Oliver Kuehne | Geert Jadoul |
Customer experience
Call Todo
Calndars
In-app purchases
Call Todo
No in-app purchases
Calndars
No in-app purchases









