# CodeHorizon vs Sub3

The clearest difference is in-app purchases: CodeHorizon at none against Sub3's 3. CodeHorizon also leads on iOS requirement (7.0 vs 18). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sub3 sells 3 in-app purchases, starting at $2.99 per month. CodeHorizon asks for nothing beyond the download.

CodeHorizon ships an update every 3 weeks, Sub3 every 9 days. The most recent releases landed on October 17, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | CodeHorizon | Sub3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/codehorizon/id925056167/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Free | — |
| Size | 1 MB | 33 MB |
| Requires iOS | **7.0** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chintan Ghate](https://appshunter.io/developer/925056166) | [辉 彭](https://appshunter.io/developer/1780252118) |

## What reviewers say

### CodeHorizon

[App page](https://appshunter.io/ios/app/codehorizon/id925056167)

Stay updated on algorithm contests across multiple coding platforms. Get timely notifications for upcoming and live events, with customizable alert timings. Access contest information and registration pages directly within the app.

**Highlights:** Algorithm contest notifications, Support for multiple coding sites, Customizable notification timings, View contest information pages, Direct access to registration pages

**Features:** macOS Compatibility

**In-app purchases:** none


### Sub3

[App page](https://appshunter.io/ios/app/sub3-subscription-tracker/id6761181626)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| monthly | $2.99 | per month |
| yearly | $12.99 | per year |
| lifetime | $19.99 | one-time |


## Frequently asked questions

### Is CodeHorizon free?

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

### Is Sub3 free?

Sub3 is free to download, with in-app purchases available.

### Do CodeHorizon or Sub3 have ads?

Neither CodeHorizon nor Sub3 shows ads.

### Which is updated more often, CodeHorizon or Sub3?

CodeHorizon ships an update every 3 weeks, and Sub3 every 9 days. Most recently, CodeHorizon was updated on October 17, 2026 and Sub3 on October 28, 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.*