# C3ntro vs HardStreak

The clearest difference is in-app purchases: C3ntro at none against HardStreak's 1. C3ntro also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17.0). HardStreak's advantage is ads (none vs shown). On price there is nothing between them.

Both are free to download. HardStreak sells 1 one-off in-app purchase. C3ntro asks for nothing beyond the download.

## The numbers

| Metric | C3ntro | HardStreak |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | — |
| Size | 126 MB | 2 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Timko, S.A](https://appshunter.io/developer/1711584911) | [Justin Kobely](https://appshunter.io/developer/1819794116) |

## What reviewers say

### C3ntro

[App page](https://appshunter.io/ios/app/c3ntro/id6469114270)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### HardStreak

[App page](https://appshunter.io/ios/app/hardstreak-challenge-tracker/id6747091673)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HardStreak Unlock | $4.99 | one-time |


## Frequently asked questions

### Is C3ntro free?

C3ntro is free to download, with no in-app purchases.

### Is HardStreak free?

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

### Do C3ntro or HardStreak have ads?

C3ntro shows ads; HardStreak does not.

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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.*