# OnSolve vs KO MARK

The clearest difference is update cadence: KO MARK at daily against OnSolve's monthly. OnSolve's advantage is iOS requirement (12.4 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OnSolve ships an update monthly, KO MARK daily. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | OnSolve | KO MARK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.9 (32 ratings)](https://appshunter.io/ios/app/onsolve/id1487868963/reviews)** | — |
| Number of ratings | **32** | — |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | Free | — |
| Size | 71 MB | 75 MB |
| Requires iOS | **12.4** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [OnSolve](https://appshunter.io/developer/1279335965) | [Neetu Shah](https://appshunter.io/developer/1793327916) |

## What reviewers say

### OnSolve

[App page](https://appshunter.io/ios/app/onsolve/id1487868963)

This app delivers critical communications directly to your mobile device. It's designed for organizations to send urgent updates and routine business information to employees, partners, and customers. Stay informed about important events that could impact operations, assets, and safety.

**Highlights:** Critical communication delivery, Push notifications for updates, Supports employees, partners, customers, Urgent and routine message delivery, Real-time event alerts

**Features:** Vision Pro support

**In-app purchases:** none


### KO MARK

[App page](https://appshunter.io/ios/app/ko-mark/id6741153521)

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

**In-app purchases:** none


## Frequently asked questions

### Is OnSolve free?

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

### Is KO MARK free?

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

### Do OnSolve or KO MARK have ads?

Neither OnSolve nor KO MARK shows ads.

### Which is updated more often, OnSolve or KO MARK?

OnSolve ships an update monthly, and KO MARK daily. Most recently, OnSolve was updated on October 6, 2026 and KO MARK on October 7, 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.*