# DNS Optimizer vs 1Cert

The clearest difference is in-app purchases: 1Cert at none against DNS Optimizer's 2. 1Cert also leads on iOS requirement (15.1 vs 17.0). DNS Optimizer's advantage is update cadence (every 11 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. DNS Optimizer sells 2 one-off in-app purchases. 1Cert asks for nothing beyond the download.

DNS Optimizer ships an update every 11 days, 1Cert every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | DNS Optimizer | 1Cert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (81 ratings)](https://appshunter.io/ios/app/dns-optimizer-server-changer/id6741016224/reviews)** | — |
| Number of ratings | **81** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 31 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ATAKAN YILDIRIM](https://appshunter.io/developer/1792591490) | [SureHire Inc.](https://appshunter.io/developer/1581482923) |

## What reviewers say

### DNS Optimizer

[App page](https://appshunter.io/ios/app/dns-optimizer-server-changer/id6741016224)

Optimize your internet connection by easily switching DNS servers. Benchmark performance, block unwanted content, and enhance online gaming with secure and private browsing. Supports Wi-Fi and cellular networks on iPhone, iPad, and Mac.

**Highlights:** Switch system-wide DNS configurations, Benchmark DNS server performance, Pre-configured trusted DNS servers, Add custom encrypted DNS servers (DoH/DoT), Block ads and unwanted content, Improve online gaming latency

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DNS Optimizer Pro | $9.99 | one-time |
| DNS Optimizer Pro | $19.99 | one-time |


### 1Cert

[App page](https://appshunter.io/ios/app/1cert/id6758375849)

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

**In-app purchases:** none


## Frequently asked questions

### Is DNS Optimizer free?

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

### Is 1Cert free?

1Cert is free to download, with no in-app purchases.

### Do DNS Optimizer or 1Cert have ads?

Neither DNS Optimizer nor 1Cert shows ads.

### Which is updated more often, DNS Optimizer or 1Cert?

DNS Optimizer ships an update every 11 days, and 1Cert every 2 months. Most recently, DNS Optimizer was updated on October 24, 2026 and 1Cert on October 25, 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.*