Comparison

Callcentric SMS vs RG SMS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Callcentric SMS

Send and receive SMS messages using your Callcentric phone numbers. This app offers real-time messaging, contact list integration, and dark mode support. It requires an active Callcentric account and an SMS Access Plan.

Highlights
  • Real-time SMS messaging
  • Dark Mode support
  • Contact list integration
  • Multiple number support
  • Manage SMS functionality per number
  • Multi-account support
  • Customizable default SMS number
Features
Read full description

The completely new Callcentric SMS app has been re-designed to provide the best SMS experience with your Callcentric account. SMS is supported on ALL of our US and Canada Numbers! Getting started is easy, all you need to do is activate one of our SMS Access Plans on your Callcentric account and install this app on your iOS device. That's it! REQUIRED TO USE THIS APP • An active Callcentric VoIP service account • Callcentric SMS Access Plan & US/Canada phone number NOT CURRENTLY SUPPORTED • MMS Messaging (group messages, attachments, etc) • SMS Messaging with International numbers (outside of US/Canada) FEATURES & HIGHLIGHTS • SMS Messaging in real-time • Dark Mode support for easier viewing • Option to use the Contact List in your device • Support for messaging with multiple numbers via a single interface • Enable/Disable SMS functionality on any of your US, Canada, or toll-free numbers • Store the username and settings for multiple accounts for fast switching between logins • Show your SMS number (the number you are sending from) in the conversation list - useful when you use multiple SMS numbers. Enable in settings • Set a default SMS number to use for sending messages or manually choose the SMS number you want to use on a per message basis. Enable in settings Access to Contacts (optional): Used to let you select a contact to send an SMS to, and properly show name information on messages received with an entry in your iPhone/iPad contacts. Your Contact list will NEVER to be uploaded to Callcentric. Data is used locally within the app. We do not have access to your Contacts outside of the app. Notifications (optional): We use push notifications to notify you of incoming SMS messages in real-time when the app is in the background. WARNING: if you do not enable notifications you will not receive notice of new incoming SMS messages until the next time you open the app.

About

RG SMS

Communicate with customers using your business phone number for texts and picture messages. Access your conversations from multiple devices and allow your team to manage replies. Customers can easily reach you via text without needing a separate app.

Highlights
  • Use business phone number for texts
  • Send/receive text and picture messages
  • Access messages on multiple devices
  • Web browser access
  • Team access to shared number
Read full description

Make and receive text messages using your business phone number! • Use your business phone number to text instead of your personal number • Send and receive text and picture messages to/from any cell phone number in the continental US View your messages on multiple devices: • Use your account on multiple devices with one sign-in • Access your messages from any computer via your browser (Chrome/Firefox/Edge) • Multiple users can access the same number so you or your team can reply to any message Now your customers can communicate with you with the ease and convenience that they have when texting with friends and family. No need to download a separate messaging “app” to contact you - they can simply text your business number and get in touch.

Screenshots

Callcentric SMS4 screens
RG SMS4 screens

Verdict

The call

The clearest difference is update cadence: Callcentric SMS at every 3 weeks against RG SMS's every 17 months. Callcentric SMS also leads on ratings volume (207 vs 3). RG SMS's advantage is rating (5.0 vs 4.6) and iOS requirement (14.0 vs 16.6). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

RG SMS holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Callcentric SMS has 207 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Callcentric SMS ships an update every 3 weeks, RG SMS every 17 months. The most recent releases landed on October 24, 2026 and October 4, 2026 respectively.

Scorecard4 real differences · 6 level
Callcentric SMS versus RG SMS: the parameters behind the verdict, then further details
ParameterCallcentric SMSRG SMS
PriceFreeFree
Rating4.6 (207 ratings)5.0 (3 ratings) — better
Positive reviews72.7% of reviews—
Number of ratings207 — better3
Update frequencyEvery 3 weeks — betterEvery 17 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.614.0 — better
Further details — not scored
Size49 MB51 MB
Age rating17+4+
DeveloperCallcentric, Inc.Textable

Customer experience

Callcentric SMS

All ratings202 ratings
Positive92.6%
Neutral4.5%
Negative3.0%
Written reviews11 reviews
Positive72.7%
Neutral18.2%
Negative9.1%

RG SMS

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Callcentric SMS

No in-app purchases

None

RG SMS

No in-app purchases

Questions

Is Callcentric SMS free?
Callcentric SMS is free to download, with no in-app purchases.
Is RG SMS free?
RG SMS is free to download, with no in-app purchases.
Which has better reviews, Callcentric SMS or RG SMS?
RG SMS is rated higher. Callcentric SMS averages 4.6 out of 5 from 207 ratings, while RG SMS averages 5.0 from 3 ratings.
Do Callcentric SMS or RG SMS have ads?
Neither Callcentric SMS nor RG SMS shows ads.
Which is updated more often, Callcentric SMS or RG SMS?
Callcentric SMS ships an update every 3 weeks, and RG SMS every 17 months. Most recently, Callcentric SMS was updated on October 24, 2026 and RG SMS on October 4, 2026.

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