# OnlyLock vs 衡熵

The clearest difference is update cadence: 衡熵 at every 3 days against OnlyLock's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. OnlyLock sells 2 in-app purchases, starting at $4.99 per month and 衡熵 sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

OnlyLock ships an update every 3 weeks, 衡熵 every 3 days. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | OnlyLock | 衡熵 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 14 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [凡滨 林](https://appshunter.io/developer/1826611654) | [玉庭 何](https://appshunter.io/developer/1867438392) |

## What reviewers say

### OnlyLock

[App page](https://appshunter.io/ios/app/onlylock/id6760904628)

This app helps you reclaim your time by actively blocking distracting applications and websites. It enforces your chosen focus periods, preventing mindless scrolling and app switching to improve productivity and habit formation.

**Highlights:** App blocking, Website blocking, Time-based locking, Hardcore lock enforcement, Progress tracking, Screen time insights, Weekly recaps

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $4.99 | per month |
| Lifetime Access | $14.99 | one-time |


### 衡熵

[App page](https://appshunter.io/ios/app/id6761233174)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 自律锁月度订阅 | $0.99 | per month |
| 自律锁年度订阅 | $3.99 | per year |
| 自律锁终身解锁 | $12.99 | one-time |


## Frequently asked questions

### Is OnlyLock free?

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

### Is 衡熵 free?

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

### Do OnlyLock or 衡熵 have ads?

Neither OnlyLock nor 衡熵 shows ads.

### Which is updated more often, OnlyLock or 衡熵?

OnlyLock ships an update every 3 weeks, and 衡熵 every 3 days. Most recently, OnlyLock was updated on October 8, 2026 and 衡熵 on October 13, 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.*