# TTKEFU vs SilentLink

The clearest difference is in-app purchases: TTKEFU at none against SilentLink's 10. SilentLink's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. SilentLink sells 10 one-off in-app purchases. TTKEFU asks for nothing beyond the download.

TTKEFU ships an update every 3 weeks, SilentLink fortnightly. The most recent releases landed on September 10, 2026 and June 23, 2026 respectively.

## The numbers

| Metric | TTKEFU | SilentLink |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.4 (26 ratings)](https://appshunter.io/ios/app/silentlink/id1539847338/reviews)** |
| Number of ratings | — | **26** |
| Positive reviews | — | 53.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 15 MB | 79 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [振国 孙](https://appshunter.io/developer/1028932685) | [XINGYAO GLOBAL TECHNOLOGY SDN. BHD.](https://appshunter.io/developer/1863580140) |

## What reviewers say

### TTKEFU

[App page](https://appshunter.io/ios/app/ttkefu/id1028932686)

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

**In-app purchases:** none


### SilentLink

[App page](https://appshunter.io/ios/app/silentlink/id1539847338)

This app offers secure, encrypted messaging with features like voice changing, message recall, and disappearing messages. It aims to protect user privacy and prevent unauthorized access to conversations. Enjoy a safer, more private chat experience.

**Highlights:** End-to-end encrypted chat, Voice changing for calls, One-click bidirectional message recall, Disappearing messages, App lock for privacy, VIP membership for enhanced features

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1个月流量包费用30元 | $4.99 | one-time |
| 境外账号付费注册45元 | $5.99 | one-time |
| 事密达账号 | $6.99 | one-time |
| 充值60元可兑换50个密豆 | $8.99 | one-time |
| 事密达1个月会员费用 | $9.99 | one-time |
| 充值118元可兑换100个密豆 | $17.99 | one-time |
| 6个月流量包费用168元 | $25.99 | one-time |
| 事密达3个月会员费用 | $29.99 | one-time |
| 12个月流量包费用288元 | $45.99 | one-time |
| 事密达12个月会员兑换券698元 | $99.99 | one-time |


## Frequently asked questions

### Is TTKEFU free?

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

### Is SilentLink free?

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

### Which is updated more often, TTKEFU or SilentLink?

TTKEFU ships an update every 3 weeks, and SilentLink fortnightly. Most recently, TTKEFU was updated on September 10, 2026 and SilentLink on June 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.*