# Mark Things vs CoreTech.

The clearest difference is in-app purchases: CoreTech. at none against Mark Things's 1. CoreTech. also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Mark Things sells 1 one-off in-app purchase. CoreTech. asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 6, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Mark Things | CoreTech. |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 162 MB | 30 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [名 陈](https://appshunter.io/developer/1848363690) | [Dusan Borovnica](https://appshunter.io/developer/1859686891) |

## What reviewers say

### Mark Things

[App page](https://appshunter.io/ios/app/mark-things-tally-counter/id6758269471)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One-time Purchase | $1.99 | one-time |


### CoreTech.

[App page](https://appshunter.io/ios/app/coretech/id6758862555)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mark Things free?

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

### Is CoreTech. free?

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

### Do Mark Things or CoreTech. have ads?

Neither Mark Things nor CoreTech. shows ads.

### Which is updated more often, Mark Things or CoreTech.?

Mark Things ships an update fortnightly, and CoreTech. fortnightly. Most recently, Mark Things was updated on October 6, 2026 and CoreTech. on September 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.*