# SP Grid Viewer vs to.Shake

The clearest difference is update cadence: to.Shake at every 4 weeks against SP Grid Viewer's every 4 months. 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.

SP Grid Viewer ships an update every 4 months, to.Shake every 4 weeks. The most recent releases landed on September 18, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | SP Grid Viewer | to.Shake |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 weeks** |
| Size | 83 MB | 4 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Stage Precision GmbH](https://appshunter.io/developer/1852817409) | [Filat Bonum](https://appshunter.io/developer/1892449433) |

## What reviewers say

### SP Grid Viewer

[App page](https://appshunter.io/ios/app/sp-grid-viewer/id6741116815)

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

**In-app purchases:** none


### to.Shake

[App page](https://appshunter.io/ios/app/toshake/id6762011837)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SP Grid Viewer free?

SP Grid Viewer is free to download, with no in-app purchases.

### Is to.Shake free?

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

### Do SP Grid Viewer or to.Shake have ads?

Neither SP Grid Viewer nor to.Shake shows ads.

### Which is updated more often, SP Grid Viewer or to.Shake?

SP Grid Viewer ships an update every 4 months, and to.Shake every 4 weeks. Most recently, SP Grid Viewer was updated on September 18, 2026 and to.Shake on September 20, 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.*