# mos.viewer vs Sleek Analytics

The clearest difference is update cadence: Sleek Analytics at every 5 weeks against mos.viewer's every 4 months. mos.viewer's advantage is iOS requirement (13.0 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.

mos.viewer ships an update every 4 months, Sleek Analytics every 5 weeks. The most recent releases landed on September 28, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | mos.viewer | Sleek Analytics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Size | 23 MB | 35 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fabrik 19 AG](https://appshunter.io/developer/501964744) | [Hao Zhe Ho](https://appshunter.io/developer/6793908025) |

## What reviewers say

### mos.viewer

[App page](https://appshunter.io/ios/app/mosviewer/id6470921065)

**In-app purchases:** none


### Sleek Analytics

[App page](https://appshunter.io/ios/app/sleek-analytics/id6763897913)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is mos.viewer free?

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

### Is Sleek Analytics free?

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

### Do mos.viewer or Sleek Analytics have ads?

Neither mos.viewer nor Sleek Analytics shows ads.

### Which is updated more often, mos.viewer or Sleek Analytics?

mos.viewer ships an update every 4 months, and Sleek Analytics every 5 weeks. Most recently, mos.viewer was updated on September 28, 2026 and Sleek Analytics on September 22, 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.*