OnRelay vs C9 TextMe
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OnRelay
This business phone service allows you to manage your company's mainline calls and use your business phone numbers directly from your smartphone. It eliminates the need for traditional desk phones and on-premises hardware, offering features like auto attendants and call transfers. Seamlessly separate business and personal calls while enabling texting and instant messaging.
- Use business phone numbers on smartphone
- Manage company mainline calls
- Auto attendant and call transfers
- Separate business and personal calls
- Texting and instant messaging
- Works over any carrier, not VoIP
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OnRelay is a turn-key, software-only, mobile business phone service. OnRelay allows you to use your business phone numbers and manage your company mainline calls from your smartphone. OnRelay also eliminates the need and expense of land-line desk phones and their associated on-premises hardware, cabling and infrastructure. OnRelay’s office phone system uses standard cellular voice connections, it works over any carrier, and is not a VoIP app. OnRelay includes a comprehensive mainline feature with an auto attendant, call groups, easily configurable voice menus and extension transfers. OnRelay thereby allows a virtual or mobile organisation to effectively handle, distribute and respond to customer calls in a professional manner. The Office Phone App also lets you separate your office phone calls and your personal calls on your iPhone. You can seamlessly place and receive calls using either your direct office phone number, your main company number or your personal cell number. You can also easily control when you are available for office calls and see whether incoming calls are company mainline calls, direct office calls, or regular personal cell calls. Texting from both direct numbers and main company numbers are also fully supported, as well as instant messaging between extensions and between all members of a call group. For further information please see: Demo Video: www.onrelay.com/demo-video Licensing and Terms of Use: www.onrelay.com/about/software-licensing-terms-of-use Privacy Policy: www.onrelay.com/privacy-policy Service Level Agreement: www.onrelay.com/service-level-agreement
C9 TextMe
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Send/receive SMS messages on your iOS mobile devices, using the same C9 TextMe virtual number you text with on your Microsoft 365 desktop. Start a conversation on, say, your Microsoft Teams desktop, and keep it going when you’re on the move. Text using a virtual number in your own local area or country code, or simply use your existing business number to text and call. C9 TextMe is fully integrated with Microsoft 365 so you can enjoy single sign-on security via Microsoft authentication and send messages to your contacts stored in Outlook, your employee directory or mobile phone. As new texts arrive, C9 TextMe will alert you on all your mobile devices and desktop applications, and because it stores every text message securely in Microsoft Azure, you can archive them as email to stay fully compliant.
Screenshots
Verdict
The clearest difference is update cadence: OnRelay at every 3 weeks against C9 TextMe's every 3 months. C9 TextMe's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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.
OnRelay ships an update every 3 weeks, C9 TextMe every 3 months. The most recent releases landed on June 12, 2026 and September 14, 2026 respectively.
| Parameter | OnRelay | C9 TextMe |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 10 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | OR Inc | WWT Inc. |
In-app purchases
OnRelay
No in-app purchases
C9 TextMe
No in-app purchases









