# KOLLME vs SilverDialer

The clearest difference is review sentiment: KOLLME at 100% against SilverDialer's 25%. KOLLME also leads on rating (5.0 vs 3.4) and update cadence (every 6 days vs every 2 months). SilverDialer's advantage is ratings volume (5 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

KOLLME holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: SilverDialer has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of KOLLME's written reviews are positive against 25% of SilverDialer's.

KOLLME ships an update every 6 days, SilverDialer every 2 months. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | KOLLME | SilverDialer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kollme/id1356460861/reviews)** | [3.4 (5 ratings)](https://appshunter.io/ios/app/silverdialer/id1416440917/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | **100.0% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 months |
| Monetization | Free | Free |
| Size | 20 MB | 88 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Four Square Technologies Ltd](https://appshunter.io/developer/1140808549) | [REVE Systems (S) Pte. Ltd.](https://appshunter.io/developer/445338530) |

## What reviewers say

### KOLLME

[App page](https://appshunter.io/ios/app/kollme/id1356460861)

This app provides high-quality, secure, and affordable international voice calls using VOIP technology. It functions as a SIP-based soft phone, allowing users to connect with friends and family globally at low rates with crystal-clear quality. It integrates seamlessly with device contacts and works across various network types.

**Highlights:** High-quality international calls, Affordable call rates, Secure and reliable communication, SIP-based softphone, Works worldwide, Integrates with contacts, Crystal clear voice quality

**Features:** macOS Compatibility

**In-app purchases:** none


### SilverDialer

[App page](https://appshunter.io/ios/app/silverdialer/id1416440917)

Make affordable international calls using your iPhone contacts. Enjoy crystal-clear quality and low rates for VoIP calls over Wi-Fi or cellular data. Track call history and balance information easily.

**Highlights:** VoIP calls, Uses iPhone contacts, Low international rates, WIFI, 4G/3G, 2G EDGE connectivity, Balance information, Call status logs

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is KOLLME free?

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

### Is SilverDialer free?

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

### Which has better reviews, KOLLME or SilverDialer?

KOLLME is rated higher. KOLLME averages 5.0 out of 5 from 1 ratings, while SilverDialer averages 3.4 from 5 ratings.

### Do KOLLME or SilverDialer have ads?

Neither KOLLME nor SilverDialer shows ads.

### Which is updated more often, KOLLME or SilverDialer?

KOLLME ships an update every 6 days, and SilverDialer every 2 months. Most recently, KOLLME was updated on October 10, 2026 and SilverDialer on October 7, 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.*