# 私语输入法 vs VoltVault

The clearest difference is price: VoltVault at Free against 私语输入法's $0.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

VoltVault is free to download; 私语输入法 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

私语输入法 ships an update monthly, VoltVault fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 私语输入法 | VoltVault |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.3 (4 ratings)](https://appshunter.io/ios/app/id6446231799/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 82.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Paid | — |
| Size | 63 MB | 1 MB |
| Requires iOS | **17.0.1** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [思语 明](https://appshunter.io/developer/1522214627) | [朝霞 程](https://appshunter.io/developer/1889121684) |

## What reviewers say

### 私语输入法

[App page](https://appshunter.io/ios/app/id6446231799)

This keyboard app offers advanced quantum encryption for your messages, images, and files, ensuring your private data remains secure. It features multiple input methods and encryption modes for private chats and group discussions, all without internet access or AI processing.

**Highlights:** Quantum encryption for messages, images, and files, Offline operation, no internet required, No ads, no AI, no data upload, Standard and private chat encryption modes, Multiple input methods (full Pinyin, 9-key, dual-pin), Customizable dual-pin layouts

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

**In-app purchases:** none


### VoltVault

[App page](https://appshunter.io/ios/app/voltvault/id6772879860)

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

**In-app purchases:** none


## Frequently asked questions

### Is 私语输入法 free?

私语输入法 costs $0.99, with no in-app purchases.

### Is VoltVault free?

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

### Do 私语输入法 or VoltVault have ads?

Neither 私语输入法 nor VoltVault shows ads.

### Which is updated more often, 私语输入法 or VoltVault?

私语输入法 ships an update monthly, and VoltVault fortnightly. Most recently, 私语输入法 was updated on October 30, 2026 and VoltVault on October 31, 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.*