# Sendra 2 vs Kernels

The clearest difference is iOS requirement: Kernels at 13.0 against Sendra 2's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Sendra 2 | Kernels |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (10 ratings)](https://appshunter.io/ios/app/kernels-private-search-engine/id1591632823/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | — | Free |
| Size | 55 MB | 30 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CO.M.P.ES. S.p.A](https://appshunter.io/developer/1499059075) | [Funnls LLC](https://appshunter.io/developer/1591632825) |

## What reviewers say

### Sendra 2

[App page](https://appshunter.io/ios/app/sendra-2/id1499059076)

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

**In-app purchases:** none


### Kernels

[App page](https://appshunter.io/ios/app/kernels-private-search-engine/id1591632823)

This app acts as a personal search engine, allowing you to index and quickly find your saved text, web pages, images, emails, and documents. It prioritizes user privacy and synchronizes your data across devices for easy access anywhere. It helps boost productivity by making your digital information instantly searchable.

**Highlights:** Personal search index, Save text, web pages, images, Search emails and documents, Privacy-focused indexing, Cross-device synchronization, Boost productivity and organization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sendra 2 free?

Sendra 2 is free to download, with no in-app purchases.

### Is Kernels free?

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

### Do Sendra 2 or Kernels have ads?

Neither Sendra 2 nor Kernels shows ads.

### Which is updated more often, Sendra 2 or Kernels?

Sendra 2 ships an update every 2 months, and Kernels every 2 months. Most recently, Sendra 2 was updated on October 10, 2026 and Kernels on October 6, 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.*