Open Reader vs Olarm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Open Reader
This app allows you to view a wide range of document formats, including Open Document files, PDFs, and Microsoft Office documents. It also functions as a robust document manager, enabling file downloads from various sources and cloud storage services.
- View ODT, ODS, ODP files
- Download files from email and web
- Manage files with folders and renaming
- View PDF, Word, Excel, PowerPoint
- Integrates with Google Drive, Dropbox, Box
- Wireless file transfer
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Open Reader is an iPhone/iPad/iPod Touch app which can display most document formats including Open Document files (ODT, ODS, ODP) and can serve as a document manager and downloader for you. Feature: 1. Display Open Office documents, including Open Document formats ODT, ODS, ODP. 2. Download files from email through Mail app 3. Download files from Internet/Web through Safari 4. Manage files in the app, support folders, renaming file, moving file to another folder by copy/cut and paste. 5. Display PDF, MS Word, Excel, PowerPoint, iWork documents(Pages, Keynotes, Numbers). 6. Email files as attachment 7. Support device display rotation 8. Display images(JPG, GIF, PNG, BMP, TIFF) 9. Display RTF, HTML, TXT files 10. Print documents from iPhone/iPod Touch/iPad with iOS 4.2 and above 11. Transfer file between OpenReader and desktop using iTunes file sharing 12. Wireless File Transfer between Open Reader and your computer using built-in WiFi server and a web browser 13. Support for GoogleDrive, including download files, upload files, create folder, delete files uploaded by Open Reader, delete folders created by Open Reader. 14. Support for Dropbox, including download files, upload files, create folder, delete files/folders. 15. Support for Box, including download files, upload files, create folder, delete files/folders.
Olarm
Control and manage your home alarm system directly from your smartphone. This app allows you to arm, disarm, and monitor your system in real-time, receive notifications, and manage users. It also offers features like silent panic and gate control.
- Arm, Disarm, Sleep, Stay modes
- Arming reminders
- Real-time zone activity log
- Silent Panic
- Cancel Responder
- User management
- Gate and light control
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This is the companion app to the Olarm device. Plug and play into your existing home alarm system and you can control and manage your home alarm system from your phone. Please visit our website for more information. Features: - Set your alarm system to Arm, Disarm, Sleep or Stay - Set reminders to arm your system - Real-time zone activity log and notifications - Silent Panic - Cancel Responder - User management - Monitor electric fence - Control gates and lights
Screenshots
Verdict
The clearest difference is price: Olarm at Free against Open Reader's $4.99. Olarm also leads on rating (3.9 vs 1.0) and review sentiment (54% vs 17%). Open Reader's advantage is iOS requirement (13.0 vs 15.1). On ads, in-app purchases, monetization model 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
Olarm is free to download; Open Reader costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Olarm holds the better App Store score, 3.9 against 1.0. That said, the two scores are not equally well evidenced: Olarm has 32 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 17% of Open Reader's written reviews are positive against 54% of Olarm's.
Open Reader ships an update every 2 months, Olarm every 3 weeks. The most recent releases landed on October 27, 2026 and November 1, 2026 respectively.
| Parameter | Open Reader | Olarm |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 1.0 (2 ratings) | 3.9 (32 ratings) — better |
| Positive reviews | 17.1% of reviews | 54.2% of reviews — better |
| Number of ratings | 2 | 32 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 36 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | UMateY | Olarm (Pty) Ltd |
Customer experience
Open Reader
Olarm
In-app purchases
Open Reader
No in-app purchases
Olarm
No in-app purchases
