# Call Todo vs Calndars

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.

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.

## The numbers

| Metric | Call Todo | Calndars |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/call-todo/id1014718802/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calndars/id1481775085/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 52 months | **Every 5 weeks** |
| Monetization | **Free** | Paid |
| Size | 15 MB | 6 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Oliver Kuehne](https://appshunter.io/developer/418791389) | [Geert Jadoul](https://appshunter.io/developer/458883064) |

## What reviewers say

### Call Todo

[App page](https://appshunter.io/ios/app/call-todo/id1014718802)

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.

**Highlights:** Create contacts from clipboard, Project-based contact management, Call history tracking, Direct calling and emailing, Color-coded project organization, Full-text search

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

**In-app purchases:** none


### Calndars

[App page](https://appshunter.io/ios/app/calndars/id1481775085)

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.

**Highlights:** 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

**In-app purchases:** none


## Frequently asked questions

### Is Call Todo free?

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

### Is Calndars free?

Calndars costs $3.99, with no in-app purchases.

### Which has better reviews, Call Todo or Calndars?

Calndars is rated higher. Call Todo averages 3.5 out of 5 from 2 ratings, while Calndars averages 5.0 from 1 ratings.

### Do Call Todo or Calndars have ads?

Neither Call Todo nor Calndars shows ads.

### Which is updated more often, Call Todo or Calndars?

Call Todo ships an update every 52 months, and Calndars every 5 weeks. Most recently, Call Todo was updated on November 1, 2026 and Calndars on November 3, 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.*