Comparison

SessionTalk SIP Softphone vs Mumblefy

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

Head to head
About

SessionTalk SIP Softphone

This mobile SIP client integrates with cloud VoIP solutions, offering advanced call management and high-quality communication. It supports various codecs, multiple accounts, and secure calling features, with some premium functionalities available through in-app purchases.

Highlights
  • SIP VoIP calls over LTE and WiFi
  • Incoming calls via Push Notifications
  • Video Calls with H264 & VP8 codec
  • Multiple accounts - simultaneously registered
  • Call Recording
  • TLS Encryption and SRTP secure calls
  • Conference - Merge and Split
Features
Read full description

Your business number. Your iPhone. Your way to stay in touch. SessionTalk SIP Softphone brings your compatible SIP account to iPhone and iPad, with a clear dialler, quick access to contacts and calling tools for working from anywhere. Start with SIP voice calling. Unlock the optional in-app upgrade for push notifications, video calling, messaging and XMPP, presence, multiple SIP accounts, call transfers, conference merging and call recording. The messaging screenshots show features available with this upgrade. CALL WITH CONFIDENCE • Make and receive SIP calls over Wi-Fi and mobile data. • Find people quickly with contacts, favourites and call history. • Use Bluetooth, speakerphone, mute, hold and voicemail notifications. • Enjoy clear audio with Opus, G.722 and G.711 support. MORE WAYS TO KEEP IN TOUCH • Share messages with XMPP chat and compatible SIP messaging services. • Keep conversations organised with contact avatars and group chat rooms. • Share images and files in supported messaging conversations. • Stay reachable with incoming-call push notifications and background XMPP message delivery. TOOLS FOR YOUR WORKDAY • Manage multiple SIP accounts in one app. • Transfer calls, bring people together in conferences and record calls. • Use video calling with a compatible provider. • Support for TLS and SRTP when enabled by your service. BRING YOUR OWN SERVICE SessionTalk is a softphone, not a phone service. A compatible SIP account or PBX is required for calling. XMPP messaging requires a compatible XMPP account. SIP messaging, video, push and other features depend on your provider and configuration. Provider calling charges and mobile data charges may apply. Need help? Contact support@sessiontalk.co.uk.

About

Mumblefy

Connect to Mumble voice chat servers on the go with this intuitive application. Enjoy seamless audio and text communication with friends, manage server configurations, and utilize features like push-to-talk and background operation.

Highlights
  • Connect to Mumble servers
  • Audio and text chat
  • Push to talk and auto speech
  • Background operation
  • Multiple server configurations
  • Channel and user lists
  • Private messaging
Features
Read full description

Mumblefy is a Mumble voice chat application that allows you to connect to your favorite Mumble servers. It is the best way to stay connected with all your friends on the go! Continue your conversations anywhere, anytime. Mumblefy takes your Mumble experience to the next level. Our fresh and beautiful design combined with easy to use controls will provide you with all the Mumble tools you know and love. FEATURES -- * Works over Wifi and 3G * Great, user-friendly user interface * Can run in the background * Allows you to store multiple servers configurations * List of channels with all connected users * Push to talk button with auto speech mode * Chat to your friends, through both audio and text. * Send private messages * Supports speaker phone and built in phone speaker. * Inbound and outbound audio levels support * Bluetooth headset support * Supports both registered and guest server accounts * Supports X.509 certificate authentication Love the app? Please share your feedback with the world by leaving a review. Have an issue or caused a crash? Contact our support at mumblefy@pandaris.com and we'll get it fixed as soon as possible.

Screenshots

SessionTalk SIP Softphone3 screens
Mumblefy4 screens

Verdict

The call

The clearest difference is rating: SessionTalk SIP Softphone at 4.4 against Mumblefy's 1.8. SessionTalk SIP Softphone also leads on update cadence (weekly vs every 8 months) and ratings volume (1K vs 24). Mumblefy's advantage is review sentiment (52% vs 39%) and iOS requirement (7.0 vs 15.0). 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. SessionTalk SIP Softphone sells 2 one-off in-app purchases and Mumblefy sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

SessionTalk SIP Softphone holds the better App Store score, 4.4 against 1.8. That said, the two scores are not equally well evidenced: SessionTalk SIP Softphone has 1K ratings behind it against 24, so its average is the more settled of the two. Written reviews complicate that: 39% of SessionTalk SIP Softphone's written reviews are positive against 52% of Mumblefy's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

SessionTalk SIP Softphone ships an update weekly, Mumblefy every 8 months. The most recent releases landed on October 27, 2026 and October 23, 2026 respectively.

Scorecard5 real differences · 5 level
SessionTalk SIP Softphone versus Mumblefy: the parameters behind the verdict, then further details
ParameterSessionTalk SIP SoftphoneMumblefy
PriceFreeFree
Rating4.4 (1K ratings) — better1.8 (24 ratings)
Positive reviews39.2% of reviews52.4% of reviews — better
Number of ratings1K — better24
Update frequencyWeekly — betterEvery 8 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.07.0 — better
Further details — not scored
Size64 MB10 MB
Age rating4+4+
DeveloperSessionTalk LtdFlamethrower

Customer experience

SessionTalk SIP Softphone

All ratings1,016 ratings
Positive85.2%
Neutral4.2%
Negative10.5%
Written reviews367 reviews
Positive39.2%
Neutral12.8%
Negative48.0%

Mumblefy

All ratings22 ratings
Positive18.2%
Neutral0.0%
Negative81.8%
Written reviews105 reviews
Positive52.4%
Neutral4.8%
Negative42.9%

User reviews

SessionTalk SIP Softphone

From 1K App Store ratings

What we love

  • 🚀 Works well
  • 👍 Easy to set up
  • 🔒 Secure
  • 🔋 Doesn't drain battery
  • 👍 Good call quality

Room to improve

  • 🐛 Crashes frequently
  • 🐛 Doesn't work with some providers
  • 🐛 Push notifications not working
  • 🐛 Doesn't work in background
  • 🐛 Incompatible with newer iOS versions

Mumblefy

From 24 App Store ratings

What we love

  • 👍 Clean and easy interface
  • 🚀 Fast and responsive
  • 🔊 Great sound quality
  • ✅ Works well for basic use
  • 🗣️ Push-to-talk support

Room to improve

  • 💸 Expensive ad removal
  • intrusive Ads
  • 🔇 Disruptive ads
  • ❌ Lacks essential features
  • ⚠️ Outdated and buggy

Bugs and requests

SessionTalk SIP Softphone

Reported bugs

4 issues
  • Incoming calls not working
  • Calls dropping
  • Connectivity issues
  • Keypad not working properly

Requested features

4 requests
  • Scheduled DND mode
  • Improved iPad support
  • Video calling
  • More codec support

Mumblefy

Reported bugs

10 issues
  • App no longer working
  • Microphone button disappeared
  • Privacy page issues
  • Video ads turned off microphone
  • Microphone stays on
Show 5 more
  • Cannot enter password
  • App crashes after connecting
  • Cannot connect to server
  • Authentication issues with certificates
  • Permissions bug

Requested features

14 requests
  • Whisper and Shout functionality
  • Red color indicator for talking
  • Work with iPhone X
  • Lower price to remove ads
  • Access token support
Show 9 more
  • Kick and ban functionality
  • Open links from chat
  • View pictures in chat
  • Disable hearing own voice
  • Adjust mic sensitivity
  • Echo cancellation
  • Admin functionality
  • Distinguishing feature for whispering/talking
  • Ability to open links or copy/paste

In-app purchases

2 purchases

SessionTalk SIP Softphone

One-time2
  • G.729 Annex A Codec$2.99
  • Upgrade to Pro$6.99
1 purchases

Mumblefy

One-time1
  • Remove Ads$4.99

Questions

Is SessionTalk SIP Softphone free?
SessionTalk SIP Softphone is free to download, with in-app purchases available.
Is Mumblefy free?
Mumblefy is free to download, with in-app purchases available.
Which has better reviews, SessionTalk SIP Softphone or Mumblefy?
SessionTalk SIP Softphone is rated higher. SessionTalk SIP Softphone averages 4.4 out of 5 from 1K ratings, while Mumblefy averages 1.8 from 24 ratings.
Do SessionTalk SIP Softphone or Mumblefy have ads?
Neither SessionTalk SIP Softphone nor Mumblefy shows ads.
Which is updated more often, SessionTalk SIP Softphone or Mumblefy?
SessionTalk SIP Softphone ships an update weekly, and Mumblefy every 8 months. Most recently, SessionTalk SIP Softphone was updated on October 27, 2026 and Mumblefy on October 23, 2026.

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