# KK Dialer vs TrustCall BD

The clearest difference is in-app purchases: KK Dialer at none against TrustCall BD's 3. TrustCall BD's advantage is update cadence (monthly vs every 52 months) and iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

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

KK Dialer ships an update every 52 months, TrustCall BD monthly. The most recent releases landed on October 27, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | KK Dialer | TrustCall BD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/trustcall-bd/id6769958066/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 52 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 12 MB | 193 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KKGaming, Inc](https://appshunter.io/developer/1571076230) | [TRUST Innovation Ltd](https://appshunter.io/developer/1896703742) |

## What reviewers say

### KK Dialer

[App page](https://appshunter.io/ios/app/kk-dialer/id1571483823)

**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 KK Dialer free?

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

### Is TrustCall BD free?

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

### Do KK Dialer or TrustCall BD have ads?

Neither KK Dialer nor TrustCall BD shows ads.

### Which is updated more often, KK Dialer or TrustCall BD?

KK Dialer ships an update every 52 months, and TrustCall BD monthly. Most recently, KK Dialer was updated on October 27, 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.*