Comparison

SessionTalk SIP Softphone vs CurcleUP

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 one-time Business upgrade for push notifications, video calling, messaging and XMPP, presence, multiple SIP accounts, call transfers, conference merging, call recording and ZRTP audio encryption. 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. • ZRTP audio encryption requires the Business upgrade. Purchase or restore it in Premium Features. • Compare the on-screen security code with the other caller to verify a ZRTP call. • See your call encryption type and ZRTP verification status during calls. • ZRTP requires a compatible peer and media path and supports audio only. Video is unavailable while ZRTP is enabled. 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

CurcleUP

Discover local events tailored to your interests with a smart recommendation engine. Create your own gatherings and connect with others who share your passions.

Highlights
  • Personalized event recommendations
  • Machine learning for tailored suggestions
  • Create custom events
  • Find people with similar interests
  • Discover local happenings
Read full description

Curcleup is an innovative new way to find what’s happening near you. Using a machine learning model, the platform will tailor events that you will enjoy! The application also gives users the ability to create their own events and find people who share similar interests.

Screenshots

SessionTalk SIP Softphone3 screens
CurcleUP4 screens

Verdict

The call

The clearest difference is rating: CurcleUP at 5.0 against SessionTalk SIP Softphone's 4.5. CurcleUP also leads on in-app purchases (none vs 2) and iOS requirement (13.4 vs 15.0). SessionTalk SIP Softphone's advantage is ratings volume (1K vs 2) and update cadence (every 5 days vs fortnightly). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SessionTalk SIP Softphone sells 2 one-off in-app purchases. CurcleUP asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CurcleUP holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: SessionTalk SIP Softphone has 1K ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

SessionTalk SIP Softphone ships an update every 5 days, CurcleUP fortnightly. The most recent releases landed on October 29, 2026 and October 18, 2026 respectively.

Scorecard6 real differences · 4 level
SessionTalk SIP Softphone versus CurcleUP: the parameters behind the verdict, then further details
ParameterSessionTalk SIP SoftphoneCurcleUP
PriceFreeFree
Rating4.5 (1K ratings)5.0 (2 ratings) — better
Positive reviews39.2% of reviews—
Number of ratings1K — better2
Update frequencyEvery 5 days — betterFortnightly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.013.4 — better
Further details — not scored
Size64 MB65 MB
Age rating4+12+
DeveloperSessionTalk LtdCurcleup Inc

Customer experience

SessionTalk SIP Softphone

All ratings1,017 ratings
Positive85.3%
Neutral4.2%
Negative10.5%
Written reviews367 reviews
Positive39.2%
Neutral12.8%
Negative48.0%

CurcleUP

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

CurcleUP

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

SessionTalk SIP Softphone

One-time2
  • G.729 Annex A Codec$2.99
  • Upgrade to Pro$6.99
None

CurcleUP

No in-app purchases

Questions

Is SessionTalk SIP Softphone free?
SessionTalk SIP Softphone is free to download, with in-app purchases available.
Is CurcleUP free?
CurcleUP is free to download, with no in-app purchases.
Which has better reviews, SessionTalk SIP Softphone or CurcleUP?
CurcleUP is rated higher. SessionTalk SIP Softphone averages 4.5 out of 5 from 1K ratings, while CurcleUP averages 5.0 from 2 ratings.
Do SessionTalk SIP Softphone or CurcleUP have ads?
Neither SessionTalk SIP Softphone nor CurcleUP shows ads.
Which is updated more often, SessionTalk SIP Softphone or CurcleUP?
SessionTalk SIP Softphone ships an update every 5 days, and CurcleUP fortnightly. Most recently, SessionTalk SIP Softphone was updated on October 29, 2026 and CurcleUP on October 18, 2026.

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