Solid Calendar vs Forma
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Solid Calendar
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.
- 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
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No subscriptions - Buy once, keep forever on all devices Elevate your productivity and organization with Solid Calendar – the all-in-one solution for managing your time, tasks, and events seamlessly. Whether you're a busy professional, a student juggling classes, or anyone looking to make the most of every day, this app offers the perfect blend of a calendar planner, rotating schedule manager, digital organizer and reminders manager. Are you ready to reclaim your time and enjoy a more organized lifestyle? Download this calendar app now and manage your schedule, tasks, and events with ease. Key Features of Solid Calendar: - Add events with natural language Isn't it so much easier when our devices understand us? You can say things like: "Pick up the kids tomorrow at 18:00" "Lunch this Saturday between 12:00 and 14:00" "Meet with Bill in 2 hours" - Calendar planner Stay on top of your schedule effortlessly with this intuitive calendar interface. Plan events, set reminders, and never miss appointments again. With a user-friendly design, adding and managing events is a breeze, ensuring you're always in control of your time with this natural language calendar. For those with complex rotating schedules, this app is also a great fit. Whether you are in healthcare, public safety, or any other profession with rotating shifts, this app adapts to your unique needs. See your rotation patterns and stay informed about your upcoming schedule with Solid Calendar. - Digital planner Say goodbye to traditional paper planners! This digital planner allows you to create, organize, and track tasks. Prioritize tasks, set due dates, and get a clear overview of your to-do list. With synchronization across devices, this planner is accessible anytime, anywhere. - 6 different layouts With Solid Calendar you can find the layout that suits your needs best on each device - Quick Join for video calls You will find options to jump straight into events that have video calls both from the app itself and from notifications - Reminders Your Reminders can live alongside your events in all layouts. You can also create and edit reminders. - Use the calendars on your device Solid Calendar works with the calendars you already have on your device. No data about your calendars leaves your device, so you can have peace of mind about your privacy - Light and Dark mode Enjoy well designed themes for both light and dark mode and pick the one you like best to accommodate your style. - Seamless integration This app easily syncs with all your device's calendars, ensuring that your events and appointments will be scheduled into a routine calendar. You'll never have to stress about missing an essential occasion. All your data remains up-to-date. - Smart reminders Stay on track with smart notifications and reminders. Customize when you will be notified about upcoming events, tasks, or shifts. So, you will be prepared for what's next. - Data security Your privacy is the top priority. This app is designed with advanced security measures to protect your sensitive information. Enjoy the convenience of a digital planner without compromising your data. Your events and reminders remain on your device, they are never uploaded to any third party servers. Cross-device sync Access your schedule and tasks from any iOS device. Whether using your iPhone or iPad, you'll always have your planner at your fingertips. Are you ready to get on top of your schedule? Solid Calendar is a universal app available on iOS, iPadOS, and macOS You can choose to unlock just this app or all 5 Solid Apps with one purchase Terms of service: http://solidapps.co/terms.html Privacy policy: http://solidapps.co/privacy.html
Forma
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Forma is a discipline app built for people who keep starting over. Not another to-do list. Not another habit tracker. Forma gives you a system — morning structure, missions broken into sprints, and wake training that gradually pulls your alarm earlier until early feels normal. How Forma works: Set your mission and break it into sprints Your morning shows you exactly what to do today You execute. You check it off. You move forward. What you get: Wake Training — shift your alarm 15 min earlier each day, automatically Mission Board — your goal as a path, sprint by sprint Today's Anchor — one task that must get done Morning routines structured around your energy zones Who it's for: People who start strong and fade Chronic procrastinators ready to change Anyone who needs a system, not just motivation Forma doesn't motivate you. It structures you. Show up. Execute. Finish. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Solid Calendar at fortnightly against Forma's every 2 months. Solid Calendar also leads on device support (3 vs 1) and iOS requirement (16.0 vs 18.6). On price, ads and in-app purchases 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
Both are free to download. Solid Calendar sells 2 one-off in-app purchases and Forma sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Solid Calendar ships an update fortnightly, Forma every 2 months. The most recent releases landed on October 20, 2026 and October 14, 2026 respectively.
| Parameter | Solid Calendar | Forma |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (120 ratings) — better | — |
| Positive reviews | 78.9% of reviews | — |
| Number of ratings | 120 — better | — |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 16.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 19 MB | 169 MB |
| Age rating | 4+ | 17+ |
| Developer | Solid Apps S.R.L. | Sabina Babayeva |
Bugs and requests
Solid Calendar
Reported bugs
7 issues- 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
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- Medium widgets have small font sizes and look wrong
- Sync to correct date issue
Requested features
24 requests- 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
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- Better task management landing pad, so that daily to-dos do not have to be tied to reminders or calendars.
- Floating to-do’s on my widget page would be rad too.
- Option to display little checkmarks for finished appointments
- Better task management landing pad, so that daily to-dos do not have to be tied to reminders or calendars.
- Floating to-do’s on my widget page would be rad too.
- Display checkmarks for finished appointments
- Better task management landing pad for to-dos
- Floating to-dos on widget page
- Grey out past events in all views
- Allow 45 min event durations
- Time to leave notifications
- Indicator for current place in day's timeline
- Daily briefing notifications
- Hyperlinks when creating reminders
- Option for minimalist widget for following day
- Option to have calendar items crossed out on widgets
- Unique Apple Watch complication
- Include reminders functionality
- Add todo function
Forma
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Solid Calendar
- Unlock this app (lifetime)$4.99
- Unlock ALL 10 Solid Apps (lifetime)$9.99
Forma
- Forma Plus7 Days trial$2.991 Month
- Forma Plus7 Days trial$14.991 Year









