# Solid Calendar vs Check In

The clearest difference is ratings volume: Solid Calendar at 120 against Check In's 1. Check In's advantage is review sentiment (100% vs 79%) and monetization model (freemium vs paid). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Solid Calendar sells 2 one-off in-app purchases and Check In sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for Solid Calendar against 5.0 for Check In. That said, the two scores are not equally well evidenced: Solid Calendar has 120 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 79% of Solid Calendar's written reviews are positive against 100% of Check In's.

Solid Calendar ships an update fortnightly, Check In weekly. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Solid Calendar | Check In |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (120 ratings)](https://appshunter.io/ios/app/solid-calendar/id6448245807/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/check-in-stay-connected/id6757725467/reviews)** |
| Number of ratings | **120** | 1 |
| Positive reviews | 78.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Paid | **Freemium** |
| Size | 19 MB | 49 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Solid Apps S.R.L.](https://appshunter.io/developer/1653740418) | [NELSON THOMAS MOEN](https://appshunter.io/developer/1865949359) |

## 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


### Check In

[App page](https://appshunter.io/ios/app/check-in-stay-connected/id6757725467)

Effortlessly manage your important relationships with gentle nudges and smart reminders. This app features a modern interface and prioritizes your privacy by keeping data on your device.

**Highlights:** Modern glassmorphism UI, Smart contact check-in cycles, Siri integration for reminders, On-device data privacy, Customizable reminder schedules, Advanced one-time reminders

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Check In Premium (Monthly) | $4.99 | per month |
| Premium + ChexAI (Monthly) | $8.99 | per month |
| Check In Premium (Annual) | $49.99 | per year |
| Premium + ChexAI (Annual) | $79.99 | per year |


## Frequently asked questions

### Is Solid Calendar free?

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

### Is Check In free?

Check In is free to download, with in-app purchases available.

### Which has better reviews, Solid Calendar or Check In?

Check In is rated higher. Solid Calendar averages 4.9 out of 5 from 120 ratings, while Check In averages 5.0 from 1 ratings.

### Do Solid Calendar or Check In have ads?

Neither Solid Calendar nor Check In shows ads.

### Which is updated more often, Solid Calendar or Check In?

Solid Calendar ships an update fortnightly, and Check In weekly. Most recently, Solid Calendar was updated on October 24, 2026 and Check In on October 22, 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.*