Comparison

Ooma Office vs T

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

Head to head
About

Ooma Office

This app allows small businesses to make and receive calls using their office phone number from anywhere. It offers features like a virtual receptionist, call transfers, and voicemail management, ensuring a professional image and never missing a client call. It can be used over Wi-Fi, even internationally, to avoid roaming charges.

Highlights
  • Virtual receptionist
  • Extension dialing
  • Call conferencing
  • Music-on-hold
  • Voicemail management
  • Call transfers
  • Wi-Fi calling
Features
Read full description

Make and receive calls from anywhere as if you’re in the office. Ooma Office mobile app is a calling app that works like a hard-wired business phone. Use features like a virtual receptionist, extension dialing, conferencing, and music-on-hold. You can also manage voicemails and transfer calls to other extensions. BE PROFESSIONAL Calls made using the app show your Ooma Office phone number so people will know that you’re calling for work. NEVER MISS A CALL The Ooma Office mobile app can be set up to ring whenever someone dials your Ooma Office number or extension. ACCESS YOUR ACCOUNT Check voicemail and update your account preferences from the app. KEEP CONNECTED ON THE GO Easily transfer calls to another extension, to your work voicemail, or to a coworker’s voicemail. TALK ON WI-FI Make and receive calls when you are connected to Wi-Fi. No cellular service required. This even works when you’re traveling abroad so you can avoid expensive roaming charges. HAVE A QUESTION? We are happy to hear your feedback or help you solve any Ooma Office issues. Email us at mobile-feedback@ooma.com for feedback on the app or call us at 888-711-6662 for customer support. ***** IMPORTANT NOTICES - PLEASE READ ***** Use of the Ooma Office application requires iOS version 11.0 or later and an Ooma Office account. If you do not have an Ooma Office account, you WILL NOT be able to use the application. This app is not compatible with the Ooma Telo or Ooma Hub. Be aware that some mobile network operators prohibit or restrict the use of VoIP (Voice over Internet Protocol) over their network. They may prohibit the use of VoIP over their network or impose additional fees and/or charges when using VoIP over their network. By using Ooma Office over 3G/4G/LTE, you agree to familiarize yourself with and abide by any restrictions your cellular carrier imposes and agree that Ooma will not be held liable for any charges, fees or liability imposed by your carrier for using Ooma Office over their 3G/4G/LTE network.

About

T

This app allows T-Mobile customers to use their phone number across multiple devices, including smartphones, tablets, and computers. It enables managing calls, texts, and voicemails from various devices, and supports using multiple numbers on a single device or one number across many.

Highlights
  • Use phone number on multiple devices
  • Make and receive calls
  • Send and receive text messages
  • Check voicemail
  • Manage multiple numbers
  • Separate work and personal lines
Read full description

T-Mobile DIGITS is an application that gives T-Mobile customers the power to leverage your phone number on all your devices, including smartphone, tablet, laptop and desktop computers, plus wearable devices. DIGITS empowers T-Mobile customers to utilize up to five phone numbers on a single device or multiple devices all with the same number so that you can receive calls from work, home, and more, all in one place. DIGITS is ideal for: • Small businesses – keep work and personal separate, plus share your work line • Home phone replacement – contact all family members anytime, anywhere • Teams & clubs – Contact your coaches, leaders, and teammates at the touch of a button • Privacy shield – use for online shopping or social apps Use DIGITS to: • Make and receive voice calls • Send and receive text messages • Check voicemail • See missed calls

Screenshots

Ooma Office4 screens
T4 screens

Verdict

The call

The clearest difference is review sentiment: Ooma Office at 50% against T's 6%. Ooma Office also leads on rating (4.9 vs 1.5) and ratings volume (9.6K vs 723). T's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 17.0). On price, update cadence, ads 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

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

Ooma Office holds the better App Store score, 4.9 against 1.5. That said, the two scores are not equally well evidenced: Ooma Office has 9.6K ratings behind it against 723, so its average is the more settled of the two. Written reviews point the same way: 50% of Ooma Office's written reviews are positive against 6% of T's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

Scorecard5 real differences · 5 level
Ooma Office versus T: the parameters behind the verdict, then further details
ParameterOoma OfficeT
PriceFreeFree
Rating4.9 (9.6K ratings) — better1.5 (723 ratings)
Positive reviews50.0% of reviews — better6.5% of reviews
Number of ratings9.6K — better723
Update frequencyEvery 6 weeksEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS17.013.0 — better
Further details — not scored
Size220 MB97 MB
Age rating4+4+
DeveloperOoma Inc.T-Mobile

Customer experience

Ooma Office

All ratings9,474 ratings
Positive97.7%
Neutral0.6%
Negative1.7%
Written reviews180 reviews
Positive50.0%
Neutral6.1%
Negative43.9%

T

All ratings520 ratings
Positive10.4%
Neutral2.3%
Negative87.3%
Written reviews402 reviews
Positive6.5%
Neutral3.7%
Negative89.8%

User reviews

Ooma Office

From 9.6K App Store ratings

What we love

  • 🚀 Convenient and flexible
  • 📞 Clear call quality
  • 💻 Works well on desktop and mobile
  • 🕰️ Reliable service

Room to improve

  • 🐛 Frequent app crashes and glitches
  • 🔍 Unreliable notifications and missed calls
  • ⏱️ Slow app performance and lags
  • 🤖 Poor customer support

T

From 723 App Store ratings

What we love

  • 💯 Great app
  • 🚀 Awesome concept
  • 🤝 Useful for business
  • 🔍 Helpful for monitoring

Room to improve

  • 🐛 Crashes frequently
  • 🔌 Unreliable connectivity
  • 🤯 Frustrating bugs
  • 🕰️ Slow performance
  • 📵 Missed calls/texts

Bugs and requests

Ooma Office

Reported bugs

3 issues
  • Login issues and account verification problems
  • Inconsistent call handling across devices
  • Voicemail and text message delivery failures

Requested features

4 requests
  • Ability to block callers
  • Improved SMS/MMS functionality
  • More customization options
  • Seamless integration between desktop and mobile

T

Reported bugs

4 issues
  • Login issues
  • Disappearing messages
  • Inconsistent call/text delivery
  • Outdated/buggy app versions

Requested features

5 requests
  • Dark mode option
  • Improved contact management
  • Reliable notifications
  • Seamless multi-device sync
  • Better call quality

In-app purchases

None

Ooma Office

No in-app purchases

None

T

No in-app purchases

Questions

Is Ooma Office free?
Ooma Office is free to download, with no in-app purchases.
Is T free?
T is free to download, with no in-app purchases.
Which has better reviews, Ooma Office or T?
Ooma Office is rated higher. Ooma Office averages 4.9 out of 5 from 9.6K ratings, while T averages 1.5 from 723 ratings.
Do Ooma Office or T have ads?
Neither Ooma Office nor T shows ads.
Which is updated more often, Ooma Office or T?
Ooma Office ships an update every 6 weeks, and T every 6 weeks. Most recently, Ooma Office was updated on November 6, 2026 and T on November 5, 2026.

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