In-depth review: Solid Apps
Solid Apps is a collection of eight productivity applications for iOS, iPad, and Mac, offered as a bundle for $9.99 per year. The suite covers fitness tracking, calendar management, note-taking, journaling, goal structuring, habit building, and an all-in-one productivity hub. While each app can be purchased individually, the bundle’s low price makes it an attractive proposition for Apple users who want a unified set of tools without paying for multiple subscriptions. The core value lies in breadth and integration across different life domains, from physical fitness to daily planning and reflection, all under a single privacy-focused ecosystem.
Where Solid Apps stands out is its combination of specialization and affordability. Fit.AI provides AI-personalized fitness tracking, adapting workout plans based on user performance. Solid Calendar uses natural language processing to quickly create events, a feature that can save time for busy professionals. Solid Diary offers private, AI-guided journaling with encrypted data, appealing to those who want a secure space for reflection. The apps are designed to work together, but the degree of integration is not fully detailed; users may need to manually link data between Fit.AI and Solid Diary, for example. The bundle’s strength is in offering focused tools for specific tasks, rather than a single monolithic app that tries to do everything.
The ideal workflow for Solid Apps is one where a user moves between apps throughout the day: starting with Solid Calendar to plan the day, using Solid Notes to capture ideas during meetings, logging a workout in Fit.AI, and ending with a journal entry in Solid Diary. Ultra Focus helps structure long-term goals, while Formed supports habit building with community engagement. For users who prefer a single interface, Evo combines calendar, habits, notes, and moods in a timeline view, but it lacks the depth of the specialized apps. The choice between Evo and the individual apps depends on whether the user values convenience over feature richness.
Who benefits most? Apple ecosystem users who want a low-cost, privacy-respecting productivity suite. Fitness enthusiasts will appreciate Fit.AI’s AI personalization, which sets it apart from basic workout trackers. Journalers will find Solid Diary’s encryption and AI prompts a compelling alternative to generic notes apps. Students and professionals can use Solid Notes and Solid Calendar for quick organization, while Ultra Focus helps with goal setting. However, the suite is limited to Apple devices, with no plans for Android or web, which may deter users who need cross-platform access.
Practical limits matter. The AI capabilities are described as “personalization” and “guidance,” but concrete details are sparse. How exactly does Fit.AI adapt workouts? What kind of prompts does Solid Diary use? Without more transparency, users must rely on the free trial to evaluate effectiveness. The bundle price is extremely low, which raises questions about long-term sustainability and feature updates. Individual app pricing is not specified, so the bundle is likely the best value, but users should confirm regional pricing. Privacy is a strong point: data is encrypted, and there are no advertisers or partners tracking users.
For a practical buyer, the decision hinges on platform loyalty and need for specialization. If you live in Apple’s ecosystem and want a single subscription that covers fitness, planning, notes, and journaling, Solid Apps is a low-risk trial at $9.99 per year. Start with the free trial of the apps that matter most, then consider the bundle if the integration adds value. For those who need cross-platform access or deeper AI features, the suite may feel limited. Solid Apps is not a replacement for dedicated fitness apps like Strava or note-taking powerhouses like Notion, but it offers a cohesive, affordable alternative for users who prefer lightweight, focused tools that respect their privacy.
Who it's built for
Individuals seeking productivity tools
Why it fits
The bundle offers a broad set of specialized apps covering scheduling, notes, journaling, fitness, and focus, all under one low subscription. This suits users who want to consolidate multiple productivity needs without juggling separate subscriptions.
Best value
The $9.99/yr bundle price is hard to beat for eight apps, making it an affordable way to experiment with different productivity methods.
Caution
Each app is relatively simple; power users may find them lacking advanced features compared to dedicated tools like Things or Bear.
Students
Why it fits
Solid Notes for quick lecture capture, Solid Calendar for class scheduling, and Ultra Focus for study goals provide a lightweight productivity stack. The low cost is student-budget friendly.
Best value
Solid Notes' fast capture and organization helps students keep up with ideas during fast-paced lectures.
Caution
No web or Android support means students who use non-Apple devices cannot access their data on those platforms.
Fitness enthusiasts
Why it fits
Fit.AI offers AI-personalized workout plans, which can adapt to your progress. Integration with the broader suite allows linking fitness data with calendar and journaling for a holistic health view.
Best value
The AI personalization sets Fit.AI apart from basic trackers, potentially saving time on workout planning.
Caution
Fit.AI's AI capabilities are not detailed; users expecting advanced analytics may be disappointed.
Journalers
Why it fits
Solid Diary provides a private, AI-guided journaling experience with strong encryption and no ads, appealing to those who value reflection and privacy.
Best value
The AI guidance (prompts, patterns) can help maintain a consistent journaling habit.
Caution
Journaling is limited to Apple devices; no export options mentioned, which could lock in data.
Key features
Fit.AI – AI-Personalized Fitness Tracking
Uses AI to create adaptive workout plans and track progress. Likely adjusts exercises based on performance and goals.
Benefit
Saves time on planning and provides a tailored experience that evolves with you.
Limitation
No details on specific AI algorithms or integration with wearables; may not suit advanced athletes.
Solid Calendar – Minimal Calendar with NLP
Natural language processing allows typing events like 'Lunch with Sarah at 1pm tomorrow' to auto-create entries.
Benefit
Speeds up event entry significantly, reducing friction in scheduling.
Limitation
NLP accuracy can vary; recurring events and time zones may require manual adjustments.
Solid Notes – Fast Note-Taking and Organization
Focuses on quick capture with tagging, folders, and search for organization.
Benefit
Enables rapid idea capture during meetings or on the go, with easy retrieval later.
Limitation
Lacks advanced features like rich media embedding or collaboration; may feel basic for power users.
Solid Diary – Private, AI-Guided Journaling
Encrypted journaling with AI prompts for reflection, sentiment analysis, or pattern recognition.
Benefit
Encourages consistent journaling with guided prompts while ensuring data privacy.
Limitation
AI guidance is not customizable; users may prefer more control over prompts.
Evo – All-in-One Productivity
Combines calendar, habits, notes, and mood tracking in a single timeline layout.
Benefit
Provides a unified view of daily life, reducing app switching.
Limitation
Lacks depth of specialized apps; features are more basic, making it a compromise for users who need advanced functionality.
Real-world use cases
Personal fitness planning and tracking
Fitness enthusiastScenario
A user wants to start a workout routine but doesn't know where to begin. They use Fit.AI to set goals and get a personalized plan. Over weeks, the AI adjusts based on logged performance.
Solution
Fit.AI creates a plan, logs exercises, and adapts intensity. The user can also schedule workouts in Solid Calendar and reflect on progress in Solid Diary.
Outcome
Saves time on planning, keeps workouts varied, and integrates with other productivity tools for a holistic view.
Scheduling and organizing daily events
ProfessionalScenario
A busy professional needs to quickly add meetings, appointments, and reminders throughout the day.
Solution
They use Solid Calendar's NLP to type natural language entries, which are instantly parsed. Recurring events and reminders are set with minimal taps.
Outcome
Reduces time spent on calendar management, allowing focus on actual tasks.
Quickly capturing and organizing ideas
StudentScenario
During a brainstorming session, a user jots down ideas rapidly. Later, they need to find a specific note from weeks ago.
Solution
Solid Notes captures text quickly with tags and folders. Search retrieves the note by keyword or tag.
Outcome
Ensures no idea is lost and retrieval is fast, improving knowledge management.
Self-reflection and private journaling
JournalerScenario
A user wants to journal daily but struggles with consistency. They also worry about privacy.
Solution
Solid Diary provides daily AI prompts to inspire entries. All data is encrypted, and no advertisers track activity.
Outcome
Builds a journaling habit with guidance, while strong privacy encourages honest reflection.
Pros & cons
Pros
- Minimalistic and user-friendly design
- Cross-platform availability (iOS, iPad, Mac)
- Affordable subscription option for all apps
- Free trial period for each app
- Specialized apps for focused productivity
- One-time purchase options for some apps
Cons
- No Android support
- Evo data does not sync with other individual apps
- Requires a Solid Apps account for Evo to sync data across devices
Pricing
Parsed from stored tiers (HTML or plain text). If a line is missing, check the notes below — confirm on the vendor site before purchasing.
Evo
$4.99
$4.99 One-time purchase, keep forever
Solid Apps Bundle
$9.99/ year
$9.99 /yr Access to all 5 Solid Apps
Frequently asked questions
How much does the Solid Apps bundle cost and what does it include?Pricing
The Solid Apps bundle costs $9.99 per year and includes access to all eight apps: Fit.AI, Solid Calendar, Solid Notes, Solid Diary, Ultra Focus, Evo, Formed, and Solid Planner. Each app can also be purchased individually, but pricing varies by region.
Is my data private and secure across all Solid Apps?General
Yes. All data is encrypted, and there are no advertisers or third-party trackers. Solid Apps does not share your data. For more details, check their privacy page.
Can I use Solid Apps on Android or Windows?General
No. Solid Apps are currently only available on iOS, iPadOS, and macOS. There are no plans for Android or web versions at this time.
What is the difference between Evo and the individual specialized apps?Comparison
Evo is an all-in-one app that combines core features from the other apps (calendar, habits, notes, moods) in a timeline layout. However, the specialized apps have more depth and features not found in Evo. Choose Evo if you prefer a unified view; choose specialized apps for advanced functionality.
How does the AI personalization in Fit.AI work?Workflow
Fit.AI uses AI to create personalized workout plans based on your goals and progress. It adapts exercises and intensity as you log performance. The exact algorithms are not publicly detailed, but the aim is to provide a tailored fitness experience.
Can I try the apps before purchasing?Pricing
Yes. Each app offers a 7-day free trial. You can test any app individually or the bundle before committing to a subscription.
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