# 链存证 vs LockStart

The clearest difference is in-app purchases: 链存证 at none against LockStart's 1. 链存证 also leads on iOS requirement (12.0 vs 15.0). LockStart's advantage is update cadence (every 6 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. LockStart sells 1 one-off in-app purchase. 链存证 asks for nothing beyond the download.

链存证 ships an update every 2 months, LockStart every 6 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | 链存证 | LockStart |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 93 MB | 7 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [福建中科星泰数据科技有限公司](https://appshunter.io/developer/1594139079) | [田 陈](https://appshunter.io/developer/840781634) |

## What reviewers say

### 链存证

[App page](https://appshunter.io/ios/app/id1635891559)

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

**In-app purchases:** none


### LockStart

[App page](https://appshunter.io/ios/app/lockstart/id1645058246)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Premium Member | $1.99 | one-time |


## Frequently asked questions

### Is 链存证 free?

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

### Is LockStart free?

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

### Do 链存证 or LockStart have ads?

Neither 链存证 nor LockStart shows ads.

### Which is updated more often, 链存证 or LockStart?

链存证 ships an update every 2 months, and LockStart every 6 days. Most recently, 链存证 was updated on November 3, 2026 and LockStart on November 3, 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.*