C. Browser vs Keep Browser
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
C. Browser
Access websites utilizing Web Bluetooth functionality directly from your device. This app enables connection to IoT devices for prototyping and other uses without requiring native app development.
- Web Bluetooth access
- Connect to IoT devices
- Prototyping tool
- Website compatibility
- Bluetooth GATT operations
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You can enjoy any websites that use Web Bluetooth with this app, and connect IoT device only with a website before creating your native app for prototyping, etc. [Currently Supported Web Bluetooth Functions] - Bluetooth.getAvailability - Bluetooth.requestDevice - BluetoothDevice.addEventListener - BluetoothDevice.removeEventListener - BluetoothRemoteGATTServer.connect - BluetoothRemoteGATTServer.disconnect - BluetoothRemoteGATTServer.getPrimaryService - BluetoothGATTService.getCharacteristic - BluetoothGATTCharacteristic.readValue - BluetoothGATTCharacteristic.writeValue - BluetoothGATTCharacteristic.startNotifications - BluetoothGATTCharacteristic.stopNotifications - BluetoothGATTCharacteristic.addEventListener - BluetoothGATTCharacteristic.removeEventListener
Keep Browser
This browser organizes your browsing sessions into a tree-like structure, making it easy to compare information and manage multiple tabs. It offers private browsing and ad-blocking for a more secure and comfortable experience.
- Tree-style tab management
- Tab management with labels
- Private browsing mode
- Ad blocking
- Restoring closed tabs
- Organizing bookmarks
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Keep Browser turns search results, comparison pages, and research links into organized tree-style tabs. Open links at the top level, in the same group, or in a subgroup so research, shopping, travel planning, work, and study pages stay connected and easy to find. Organized tab groups can be sent as shared links. Share tab groups across supported devices, making it easier to continue research across devices. Useful when you want to: • Open multiple search results and compare them later • Organize products, hotels, restaurants, properties, or other candidates • Keep frequently used pages and pages to read later in groups • Manage many open tabs with hierarchy and labels • Share a group of tabs with family, friends, or another device Main features • Tree-style tab management: Keep related pages in a clear hierarchy. • Tab group sharing: Send selected tab groups as shared links and open them across supported devices. Private tabs are not shared. • Keep Mode: Open tapped links as new tabs in a subgroup and preserve your research flow. • Labels: Add names and colors to tab groups. • Tab List, Tab Map, and related-node preview: Review open tabs and related groups, then jump to the page you need. • Pinned tabs: Keep important pages from being closed by mistake. • Closed tab restore: Restore closed tabs from the list. • Ad blocking: Choose the blocking strength and adjust settings per site to balance cleaner pages with site compatibility. • Private Mode: Browse without saving history or cookies. • Fast scroll: Move quickly through long pages and large tab lists by dragging the scroll bar. • Backup and restore: Back up and restore regular tabs, bookmarks, browsing history, search history, and settings across supported devices. Private tabs, cookies, and login state are not restored. • Bookmarks, history, downloads, page translation, find in page, PDF search, desktop site display, and zoom are also supported. Keep Browser is built not only to open pages, but to organize and preserve them. Manage research, comparison, saving, sharing, and backup in one place.
Screenshots
Verdict
C. Browser and Keep Browser both sit at 5.0 stars, but that hides the real split: 100% of Keep Browser's written reviews are positive against 12% of C. Browser's. Keep Browser also leads on ratings volume (4 vs 1). C. Browser's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, rating, update cadence 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for C. Browser against 5.0 for Keep Browser. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews are what separate them: 12% of C. Browser's written reviews are positive against 100% of Keep Browser's.
C. Browser ships an update every 2 weeks, Keep Browser every 11 days. The most recent releases landed on October 11, 2026 and October 5, 2026 respectively.
| Parameter | C. Browser | Keep Browser |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (4 ratings) |
| Positive reviews | 11.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 2 weeks | Every 11 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 31 MB | 144 MB |
| Age rating | 17+ | 17+ |
| Developer | irodori, inc. | RSA TECHNOLOGIES, LIMITED LIABILITY CO. |
Customer experience
C. Browser
Keep Browser
Bugs and requests
C. Browser
Reported bugs
17 issues- Bluetooth connection fails repeatedly
- App disconnects after closing
- Mode change button disappears
- App does not recognize connected device
- App crashes or freezes
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- Login screen freezes
- App logs out automatically
- Cannot connect to Bluetooth on iPhone
- QR code reading is not functional within the app
- Face recognition does not work for login
- App shows 'currently busy' error for mode switching
- Device page not found
- Bluetooth connection is unstable
- App does not show connected device status correctly
- Cannot register as a foreigner
- App is not recognized by phone's Bluetooth
- Device name does not appear in Bluetooth settings
Requested features
12 requests- Dedicated Ploom app
- Physical buttons for mode change on device
- Biometric login support
- Improved UI/UX
- Offline mode for mode switching
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- Easier connection process
- Better instructions and manuals
- Support for iPhone users
- Ability to link Safari bookmarks
- Display battery and mode on the first page
- Make device search function useful
- Allow mode change directly on the device
Keep Browser
Not enough reviews yet to summarise bugs or requests.
In-app purchases
C. Browser
No in-app purchases
Keep Browser
No in-app purchases








