# SessionTalk SIP Softphone vs Robert Keyes

The clearest difference is review sentiment: Robert Keyes at 100% against SessionTalk SIP Softphone's 39%. Robert Keyes also leads on rating (5.0 vs 4.5) and in-app purchases (none vs 2). SessionTalk SIP Softphone's advantage is ratings volume (1K vs 1) and update cadence (every 2 weeks vs monthly). On price, ads and device support there is nothing between them.

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

Robert Keyes 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 1, so its average is the more settled of the two. Written reviews point the same way: 39% of SessionTalk SIP Softphone's written reviews are positive against 100% of Robert Keyes's.

SessionTalk SIP Softphone ships an update every 2 weeks, Robert Keyes monthly. The most recent releases landed on October 15, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | SessionTalk SIP Softphone | Robert Keyes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (1K ratings)](https://appshunter.io/ios/app/sessiontalk-sip-softphone/id362501443/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/robert-keyes/id6504303823/reviews)** |
| Number of ratings | **1K** | 1 |
| Positive reviews | 39.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 63 MB | 79 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SessionTalk Ltd](https://appshunter.io/developer/357429375) | [Robert Keyes](https://appshunter.io/developer/1751822667) |

## What reviewers say

### SessionTalk SIP Softphone

[App page](https://appshunter.io/ios/app/sessiontalk-sip-softphone/id362501443)

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:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| G.729 Annex A Codec | $2.99 | one-time |
| Upgrade to Pro | $6.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- Incoming calls not working
- Calls dropping
- Connectivity issues
- Keypad not working properly

**Requested features**

- Scheduled DND mode
- Improved iPad support
- Video calling
- More codec support


### Robert Keyes

[App page](https://appshunter.io/ios/app/robert-keyes/id6504303823)

Stay connected with a prominent businessman through his dedicated application. Receive push notifications and updates to remain informed about his activities and ventures.

**Highlights:** Push notification alerts, Stay informed on the go, Connect with a businessman, Business updates

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SessionTalk SIP Softphone free?

SessionTalk SIP Softphone is free to download, with in-app purchases available.

### Is Robert Keyes free?

Robert Keyes is free to download, with no in-app purchases.

### Which has better reviews, SessionTalk SIP Softphone or Robert Keyes?

Robert Keyes is rated higher. SessionTalk SIP Softphone averages 4.5 out of 5 from 1K ratings, while Robert Keyes averages 5.0 from 1 ratings.

### Do SessionTalk SIP Softphone or Robert Keyes have ads?

Neither SessionTalk SIP Softphone nor Robert Keyes shows ads.

### Which is updated more often, SessionTalk SIP Softphone or Robert Keyes?

SessionTalk SIP Softphone ships an update every 2 weeks, and Robert Keyes monthly. Most recently, SessionTalk SIP Softphone was updated on October 15, 2026 and Robert Keyes on September 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*