# iSilo vs Focus Keeper

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.

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 10, 2026 respectively.

## The numbers

| Metric | iSilo | Focus Keeper |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [3.8 (50 ratings)](https://appshunter.io/ios/app/isilo/id284979163/reviews) | **[4.8 (32K ratings)](https://appshunter.io/ios/app/focus-keeper-pomodoro-timer/id867374917/reviews)** |
| Number of ratings | 50 | **32K** |
| Positive reviews | 50.6% of reviews | **76.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 13 MB | 866 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [DC & Co.](https://appshunter.io/developer/284947607) | [PIXO Incorporation](https://appshunter.io/developer/541568418) |

## What reviewers say

### iSilo

[App page](https://appshunter.io/ios/app/isilo/id284979163)

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.

**Highlights:** 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)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💻 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

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- 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**

- 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

[App page](https://appshunter.io/ios/app/focus-keeper-pomodoro-timer/id867374917)

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.

**Highlights:** Pomodoro technique timer, Customizable session and break lengths, Study and exam timer, ADHD-friendly structured intervals, Productivity time tracker, Simple and intuitive interface

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Focus Keeper Pro 1 Month | $3.99 | per month |
| Focus Keeper Pro 1 Month | $3.99 | per month |
| Focus Keeper Pro 1 Month | $12.99 | per month |
| Focus Keeper Pro 1 Year | $34.99 | per year |
| Focus Keeper Pro 1 Year | $34.99 | per year |
| Focus Keeper Pro 1 Year Standard | $49.99 | per year |
| Focus Keeper Pro 1 Year Standard | $49.99 | per year |
| Focus Keeper Pro 1 Year | $69.99 | per year |
| Focus Keeper Pro | $99.99 | one-time |
| Focus Keeper Pro | $199.99 | one-time |

**What reviewers like**

- 🚀 Effective for staying focused
- 👍 Simple and intuitive interface
- 👍 Customizable settings
- 🕰️ Helpful for managing time and productivity
- 🔔 Useful break reminders

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- Timer randomly stops counting down
- White noise that can't be turned off
- Inconsistent behavior when switching apps

**Requested features**

- Apple Watch support
- Ability to label/categorize tasks
- Sync with calendar/to-do apps
- More sound/music options
- Customizable break durations


## Frequently asked questions

### Is iSilo free?

iSilo costs $9.99, with no in-app purchases.

### Is Focus Keeper free?

Focus Keeper is free to download, with in-app purchases available.

### Which has better reviews, iSilo or Focus Keeper?

Focus Keeper is rated higher. iSilo averages 3.8 out of 5 from 50 ratings, while Focus Keeper averages 4.8 from 32K ratings.

### Do iSilo or Focus Keeper have ads?

Neither iSilo nor Focus Keeper shows ads.

### Which is updated more often, iSilo or Focus Keeper?

iSilo ships an update every 3 weeks, and Focus Keeper every 4 days. Most recently, iSilo was updated on November 6, 2026 and Focus Keeper on November 10, 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.*