iSilo vs Focus Keeper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iSilo
Read various document formats including iSilo, Palm Doc, and plain text. Access a vast library of content, organize your files, and customize viewing options for a personalized reading experience. Transfer documents easily via USB, Wi-Fi, or web download.
- Supports iSilo, Palm Doc, and plain text formats
- Extensive document library and creation tools
- Organize documents with categories and favorites
- Customizable viewing options (font, colors, themes)
- Autoscroll, full-screen, and orientation support
- Text search, copy, and annotation
- Multiple document transfer methods (USB, Wi-Fi, Web)
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Document reader for viewing document files in iSilo, Palm Doc, and plain text format. Bonus: Get the complete edition of the CIA World Factbook for free, with layout optimized for viewing on your iPhone, iPod touch, or iPad using iSilo. In addition to full information for all the countries of the world, the complete edition contains appendixes, reference maps, field cross-reference links, rank order pages, country profiles for all fields, enlarged flag pages with descriptions, enlarged country maps, and more. Tens of thousands of documents, eBooks, reference works, non-fiction, fiction available for ready download through the iSilo library. Create your own documents too. Document list provides recently viewed list of documents, ability to categorize documents into single or multiple categories, marking of favorite folders for easy access, and file explorer access to entire document directory with document file management operations, such as copying/moving/deleting/renaming document files and creating/deleting/renaming folders. Document viewing options provide for font size and typeface selection, along with customizable color themes with selectable background and text colors. Autoscroll with adjustable speed, view documents in full screen, complete support for both portrait and landscape orientations and rotation. Jump history for easily navigating back and forth when following hyperlinks and jumping to different locations in the document. Documents open to last viewed location. Bookmarks. Document text search. Select a range of text to copy or annotate it with a comment and choice of color highlighting. Easily transfer documents to your device via USB, via Wi-Fi by connecting to iSilo's built-in file server from your computer, or via download from the Web. Configure the screen to perform actions when tapped. Assignable actions include scrolling, full screen mode, font sizing, among many others. The latest version adds the ability to view additional file types. Additional image file types include .jpg, .png, .gif, .tif, among others. Additional document file types include .pdf, .htm, Word (.doc, .docx), Excel (.xls, .xlsx), and PowerPoint (.ppt, .pptx). See the manual for more details on the additional file type support.
Focus Keeper
This app helps boost productivity and combat procrastination using the Pomodoro technique. It breaks down tasks into timed work intervals and breaks, ideal for students, professionals, or those managing ADHD. Features include a study tracker and customizable settings for efficient time management.
- Pomodoro technique timer
- Customizable session and break lengths
- Study and exam timer
- ADHD-friendly structured intervals
- Productivity time tracker
- Simple and intuitive interface
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Focus Keeper is the ultimate focus timer and Pomodoro timer designed to help you boost productivity and fight against procrastination. Whether you're a student preparing for an exam, managing ADHD, or simply trying to stay focused, this app is here to make your time management easier. By leveraging the original Pomodoro method, Focus Keeper helps you break down your tasks into manageable intervals and balance work with breaks, so you can stay on track without burning out. With a built-in study tracker, customizable settings, and an intuitive design, Focus Keeper is ideal for those who need a reliable exam timer or just want to track their progress efficiently. Focus Keeper: Pomodoro Timer, Exam Timer, ADHD Pomodoro – Stay true to the original technique with 25-minute sessions followed by short breaks to keep your mind sharp. Customizable Focus Timer – Adjust the length of your sessions, short breaks, and long breaks to suit your workflow. Exam Timer & Study Timer – Ideal for students and professionals, the product acts as a perfect exam timer to help you easily manage study sessions. ADHD Friendly – Tailored for those with ADHD, the app’s structured technique helps improve concentration and task completion. Time Tracker – Track your productivity over time with insightful charts and fight against ADHD and procrastination. Simple Interface – With a clean and intuitive design, it's easy to set up your focus timer and start working on your tasks immediately. How Its Works? Set Your Focus Timer & Study Timer– Choose a task and set the clock for 25 minutes. Work Until the Rings – Stay focused on your task until the Pomodoro rings. Take a Short Break – Enjoy a 5-minute break after each session to refresh your mind. Long Breaks – After completing 4 focus sessions, take a longer break of 20-30 minutes to recharge. The app automatically starts the next session, so you can stay productive without interruptions. Who Can Benefit? Whether you're a student needing a reliable study timer for exams, a professional managing multiple tasks, or someone who struggles with ADHD, the concentration app is the perfect tool. The app provides a structured routine, making it easier to avoid distractions and procrastination. Its built-in time tracker and customizable settings ensure that you can stay productive in any environment, from the office to the study room. Why ? Unlike other apps, Focus Keeper offers an original Pomodoro experience while giving you full control over how you manage your focus sessions. Whether you're using it as an exam timer, a study timer, or to manage ADHD, its versatile features and easy-to-use interface make it stand out. Track your productivity over time, customize your features, and use it as a stopwatch for specific tasks – all while avoiding procrastination and staying on task. Read our terms and conditions at https://www.iubenda.com/terms-and-conditions/36391786 Read our privacy policy at https://www.iubenda.com/privacy-policy/36391786 [ Support: support@pixo.co ]
Screenshots
Verdict
The clearest difference is price: Focus Keeper at Free against iSilo's $9.99. Focus Keeper also leads on rating (4.8 vs 3.8) and review sentiment (76% vs 51%). iSilo's advantage is in-app purchases (none vs 10) and iOS requirement (8.0 vs 16.0). On ads and device support 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
Focus Keeper is free to download; iSilo costs $9.99 up front. Focus Keeper sells 10 in-app purchases, starting at $3.99 per month. iSilo asks for nothing beyond the download.
Focus Keeper holds the better App Store score, 4.8 against 3.8. That said, the two scores are not equally well evidenced: Focus Keeper has 32K ratings behind it against 50, so its average is the more settled of the two. Written reviews point the same way: 51% of iSilo's written reviews are positive against 76% of Focus Keeper's.
iSilo ships an update every 3 weeks, Focus Keeper every 4 days. The most recent releases landed on November 6, 2026 and November 9, 2026 respectively.
| Parameter | iSilo | Focus Keeper |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 3.8 (50 ratings) | 4.8 (32K ratings) — better |
| Positive reviews | 50.6% of reviews | 76.5% of reviews — better |
| Number of ratings | 50 | 32K — better |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 8.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 13 MB | 866 MB |
| Age rating | 4+ | 4+ |
| Developer | DC & Co. | PIXO Incorporation |
Customer experience
iSilo
Focus Keeper
User reviews
iSilo
From 50 App Store ratingsWhat we love
- 💻 Works well with Christian books
- 📚 Excellent for reading documents with embedded hyperlinks
- ⚡ Fast and smooth on many devices
- 🙌 Hands down a life-saving app
- 🏆 Basic but wonderful functionality
Room to improve
- 🐛 Crashes upon opening
- 🐛 Unable to download new material since 2017
- 🐛 Crashes when trying to open code-protected file
- 🐛 Scrolling issues and performance problems
- 🤖 Outdated and abandoned by developers
Focus Keeper
From 32K App Store ratingsWhat we love
- 🚀 Effective for staying focused
- 👍 Simple and intuitive interface
- 👍 Customizable settings
- 🕰️ Helpful for managing time and productivity
- 🔔 Useful break reminders
Room to improve
- 🐛 Occasional bugs and crashes
- 🔇 Lack of ability to mute/adjust sound
- 🔒 Privacy concerns with data collection
- 💰 Subscription model for full features
- 🔍 Limited task management functionality
Bugs and requests
iSilo
Reported bugs
5 issues- Crashes when trying to open certain file formats
- Displaying issues with Palm format (PDB) files
- Inability to download files from Dropbox
- Text going off-screen after recent updates
- Bookmarks and annotations not syncing across devices
Requested features
5 requests- Add dark mode feature
- Improve text highlighting and annotation capabilities
- Implement cloud sync and cross-device support
- Modernize the user interface
- Add support for iOS Files app
Focus Keeper
Reported bugs
3 issues- Timer randomly stops counting down
- White noise that can't be turned off
- Inconsistent behavior when switching apps
Requested features
5 requests- Apple Watch support
- Ability to label/categorize tasks
- Sync with calendar/to-do apps
- More sound/music options
- Customizable break durations
In-app purchases
iSilo
No in-app purchases
Focus Keeper
- Focus Keeper Pro 1 Month$3.991 Month
- Focus Keeper Pro 1 Month3 Days trial$3.991 Month
- Focus Keeper Pro 1 Month$12.991 Month
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- Focus Keeper Pro 1 Year7 Days trial$34.991 Year
- Focus Keeper Pro 1 Year$34.991 Year
- Focus Keeper Pro 1 Year Standard7 Days trial$49.991 Year
- Focus Keeper Pro 1 Year Standard$49.991 Year
- Focus Keeper Pro 1 Year7 Days trial$69.991 Year
- Focus Keeper Pro$99.99
- Focus Keeper Pro$199.99









