# K2 Sathi vs Surie Polex

The clearest difference is update cadence: Surie Polex at every 2 months against K2 Sathi's every 18 months. K2 Sathi's advantage is iOS requirement (12.1 vs 15.0). 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.

K2 Sathi ships an update every 18 months, Surie Polex every 2 months. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | K2 Sathi | Surie Polex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 2 months** |
| Size | 12 MB | 95 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Nikhil Patel](https://appshunter.io/developer/1142926286) | [SURIE POLEX INDUSTRIES LLP](https://appshunter.io/developer/1774408381) |

## What reviewers say

### K2 Sathi

[App page](https://appshunter.io/ios/app/k2-sathi/id1480566184)

**Features:** macOS Compatibility

**In-app purchases:** none


### Surie Polex

[App page](https://appshunter.io/ios/app/surie-polex/id6737019332)

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

**In-app purchases:** none


## Frequently asked questions

### Is K2 Sathi free?

K2 Sathi is free to download, with no in-app purchases.

### Is Surie Polex free?

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

### Do K2 Sathi or Surie Polex have ads?

Neither K2 Sathi nor Surie Polex shows ads.

### Which is updated more often, K2 Sathi or Surie Polex?

K2 Sathi ships an update every 18 months, and Surie Polex every 2 months. Most recently, K2 Sathi was updated on November 3, 2026 and Surie Polex on October 27, 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.*