# Due vs Calzy

The clearest difference is price: Calzy at $1.99 against Due's $7.99. Calzy also leads on update cadence (every 2 days vs every 2 weeks). Due's advantage is chart position (#12 vs #163) and iOS requirement (18.0 vs 26.0). On rating, review sentiment, ratings volume and ads there is nothing between them.

Due costs $7.99 and Calzy $1.99 up front. Due sells 4 in-app purchases, starting at $4.99 per year and Calzy sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Due against 4.7 for Calzy. Both are backed by a comparable volume of ratings — 2.8K and 1.9K respectively. Written reviews are what separate them: 82% of Due's written reviews are positive against 77% of Calzy's.

Due ships an update every 2 weeks, Calzy every 2 days. Both last shipped on November 6, 2026.

## The numbers

| Metric | Due | Calzy |
| --- | --- | --- |
| Price | $7.99 | **$1.99** |
| Rating | [4.7 (2.8K ratings)](https://appshunter.io/ios/app/due-reminders-and-timers/id390017969/reviews) | **[4.7 (1.9K ratings)](https://appshunter.io/ios/app/calzy/id623690732/reviews)** |
| Number of ratings | **2.8K** | 1.9K |
| Positive reviews | **82.3% of reviews** | 76.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Paid | Paid |
| Best chart rank | **#12** | #163 |
| Size | 82 MB | 66 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Due Apps LLP](https://appshunter.io/developer/387681526) | [Raja Vijayaraman](https://appshunter.io/developer/562575890) |

## What reviewers say

### Due

[App page](https://appshunter.io/ios/app/due-reminders-and-timers/id390017969)

**Currently charting:** #12 Top Paid · Productivity, #116 Top Paid (US App Store)

This app ensures you never forget tasks or appointments with persistent, effective reminders. It offers quick setup, natural language input, and powerful recurring options, all while prioritizing user privacy and accessibility across Apple devices.

**Highlights:** Persistent reminders with auto-snooze, Critical and prominent alerts, Natural language input for setting reminders, Powerful recurring reminder options, Countdown timers with auto-snooze, Apple Watch, Widget, and Shortcut support, iCloud and Dropbox sync

**Features:** Family Sharing, Siri integration, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Upgrade Pass (Mobile) | $4.99 | per year |
| Kind Tip | $3.00 | one-time |
| Generous Tip | $5.00 | one-time |
| Wonderful Tip | $10.00 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick to set reminders
- 📆 Customizable repeat options
- ⏰ Persistent reminders until completed
- 🔔 Variety of alert sounds

**What reviewers complain about**

- 🐛 Occasional syncing issues
- 🔇 Notification volume could be louder
- 📂 Lack of folder/category organization
- 🕰️ Limited snooze time options

**Reported bugs**

- Reminders not triggering on Apple Watch
- Completed reminders not clearing from all devices

**Requested features**

- Location-based reminders
- Integration with calendar apps
- Ability to set reminders for specific time ranges
- Custom reminder sounds
- Backup and restore functionality


### Calzy

[App page](https://appshunter.io/ios/app/calzy/id623690732)

**Currently charting:** #163 Top Paid · Productivity (US App Store)

This app offers a modern and intuitive way to perform everyday calculations. It features a unique Memory Area for reusing values, bookmarking for saved calculations, and leverages the latest iOS technologies for a seamless experience. Designed with privacy in mind, it's suitable for students and professionals alike.

**Highlights:** Memory Area for reusing values, Calculation bookmarking with titles, Basic and advanced calculation modes, Privacy mode with Face ID, Live Activity and Haptic Touch support, Customizable keypad layout, Dark and Light modes

**Features:** macOS Compatibility, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $3.99 | one-time |
| Huge Tip | $9.99 | one-time |


## Frequently asked questions

### Is Due free?

Due costs $7.99, and also offers in-app purchases.

### Is Calzy free?

Calzy costs $1.99, and also offers in-app purchases.

### Which has better reviews, Due or Calzy?

Calzy is rated higher. Due averages 4.7 out of 5 from 2.8K ratings, while Calzy averages 4.7 from 1.9K ratings.

### Do Due or Calzy have ads?

Neither Due nor Calzy shows ads.

### Which is updated more often, Due or Calzy?

Due ships an update every 2 weeks, and Calzy every 2 days. Most recently, Due was updated on November 6, 2026 and Calzy on November 6, 2026.

### Which is more popular, Due or Calzy?

Due currently peaks at #12 in the App Store charts, and Calzy at #163. Chart position reflects recent download velocity rather than total install base.

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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.*