# KOLLME vs TrustCall BD

The clearest difference is rating: KOLLME at 5.0 against TrustCall BD's 4.0. KOLLME also leads on in-app purchases (none vs 3) and update cadence (every 6 days vs monthly). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. TrustCall BD sells 3 one-off in-app purchases. KOLLME asks for nothing beyond the download.

KOLLME holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

KOLLME ships an update every 6 days, TrustCall BD monthly. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | KOLLME | TrustCall BD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kollme/id1356460861/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/trustcall-bd/id6769958066/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 20 MB | 193 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Four Square Technologies Ltd](https://appshunter.io/developer/1140808549) | [TRUST Innovation Ltd](https://appshunter.io/developer/1896703742) |

## 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


### TrustCall BD

[App page](https://appshunter.io/ios/app/trustcall-bd/id6769958066)

Make direct calls from your smartphone to traditional button phones without requiring internet on the receiver's end. Enjoy significant cost savings on calls, with clear HD voice and reliable connections. The app also offers group calling, messaging, and video calls.

**Highlights:** Direct calls to button phones, No internet required for receiver, Low per-call cost (0.40 poisha), Pay per second, Save up to 70% on call costs, Free calls between TrustCall users, HD voice quality, Group calling, messaging, video calls

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TrustCall Tier 1 | $0.99 | one-time |
| TrustCall Tier 2 | $1.99 | one-time |
| TrustCall Tier 3 | $2.99 | one-time |


## Frequently asked questions

### Is KOLLME free?

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

### Is TrustCall BD free?

TrustCall BD is free to download, with in-app purchases available.

### Which has better reviews, KOLLME or TrustCall BD?

KOLLME is rated higher. KOLLME averages 5.0 out of 5 from 1 ratings, while TrustCall BD averages 4.0 from 2 ratings.

### Do KOLLME or TrustCall BD have ads?

Neither KOLLME nor TrustCall BD shows ads.

### Which is updated more often, KOLLME or TrustCall BD?

KOLLME ships an update every 6 days, and TrustCall BD monthly. Most recently, KOLLME was updated on October 24, 2026 and TrustCall BD on October 23, 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.*