# Solid Calendar vs Entropy of Us

The clearest difference is in-app purchases: Entropy of Us at none against Solid Calendar's 2. Solid Calendar's advantage is device support (3 vs 1) and iOS requirement (16.0 vs 26.0). On price and ads there is nothing between them.

Both are free to download. Solid Calendar sells 2 one-off in-app purchases. Entropy of Us asks for nothing beyond the download.

## The numbers

| Metric | Solid Calendar | Entropy of Us |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (120 ratings)](https://appshunter.io/ios/app/solid-calendar/id6448245807/reviews)** | — |
| Number of ratings | **120** | — |
| Positive reviews | 78.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Paid | — |
| Size | 19 MB | 36 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Solid Apps S.R.L.](https://appshunter.io/developer/1653740418) | [Aditya Roy](https://appshunter.io/developer/6780989672) |

## What reviewers say

### Solid Calendar

[App page](https://appshunter.io/ios/app/solid-calendar/id6448245807)

This app helps you manage your time, tasks, and events with a natural language interface. It acts as a digital planner, rotating schedule manager, and reminder system, syncing with your existing device calendars for seamless organization.

**Highlights:** Add events with natural language input, Calendar planner with intuitive interface, Digital planner for tasks and to-do lists, Rotating schedule management, Quick join for video calls, Reminders and smart notifications, Multiple layout options

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock this app (lifetime) | $4.99 | one-time |
| Unlock ALL 10 Solid Apps (lifetime) | $9.99 | one-time |

**What reviewers like**

- ✨ Brilliant app overall
- 👍 Easy to use interface
- 🎨 Visually appealing design
- 💰 Affordable one-time purchase
- 🚀 Fast loading and performance

**What reviewers complain about**

- 🤔 Account required for sync
- 📅 Weekly view horizontal events
- 🐛 Sync issues with date
- ❓ Widgets feel like afterthought
- 🐛 App crashes after update

**Reported bugs**

- Date is a day behind in Australia
- Jumps back to today's date when viewing future dates
- App crashes every time after last update
- Changing daily event time affects rest of week incorrectly
- Weekly view shows all-day events horizontally like timed events

**Requested features**

- Display checkmarks for finished appointments
- Better task management landing pad, floating to-dos
- Option to display little checkmarks for finished appointments
- Floating to-do's on widget page
- Option to display little checkmarks for finished appointments


### Entropy of Us

[App page](https://appshunter.io/ios/app/entropy-of-us/id6780989670)

**In-app purchases:** none


## Frequently asked questions

### Is Solid Calendar free?

Solid Calendar is free to download, with in-app purchases available.

### Is Entropy of Us free?

Entropy of Us is free to download, with no in-app purchases.

### Do Solid Calendar or Entropy of Us have ads?

Neither Solid Calendar nor Entropy of Us shows ads.

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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.*