# DSPSystem vs Anchor

The clearest difference is in-app purchases: DSPSystem at none against Anchor's 1. DSPSystem also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). Anchor's advantage is update cadence (weekly vs every 5 months). On price and ads there is nothing between them.

Both are free to download. Anchor sells 1 one-off in-app purchase. DSPSystem asks for nothing beyond the download.

DSPSystem ships an update every 5 months, Anchor weekly. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | DSPSystem | Anchor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Size | 93 MB | 2 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [星忠 宁](https://appshunter.io/developer/1446136891) | [Sahil Jain](https://appshunter.io/developer/1856599863) |

## What reviewers say

### DSPSystem

[App page](https://appshunter.io/ios/app/dspsystem/id6478640424)

**In-app purchases:** none


### Anchor

[App page](https://appshunter.io/ios/app/anchor-screen-time-lock/id6788651878)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Anchor Full | $4.99 | one-time |


## Frequently asked questions

### Is DSPSystem free?

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

### Is Anchor free?

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

### Do DSPSystem or Anchor have ads?

Neither DSPSystem nor Anchor shows ads.

### Which is updated more often, DSPSystem or Anchor?

DSPSystem ships an update every 5 months, and Anchor weekly. Most recently, DSPSystem was updated on October 1, 2026 and Anchor on October 8, 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.*