# Surface Precision vs Zen Void

The clearest difference is ads: Surface Precision at none against Zen Void's shown. Surface Precision also leads on iOS requirement (9.0 vs 15.1). Zen Void's advantage is update cadence (every 9 days vs every 3 months). On price, 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.

Surface Precision ships an update every 3 months, Zen Void every 9 days. The most recent releases landed on October 21, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Surface Precision | Zen Void |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/surface-precision/id1509181840/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | Free | — |
| Size | 48 MB | 108 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Cecotec innovaciones S.L.](https://appshunter.io/developer/1416497163) | [Andrew Blewett](https://appshunter.io/developer/1836138643) |

## What reviewers say

### Surface Precision

[App page](https://appshunter.io/ios/app/surface-precision/id1509181840)

Connect your smart scale to your smartphone to track various body composition metrics. Visualize your progress over time with graphs and stored data, monitoring changes in weight, body mass, fat index, and muscle.

**Highlights:** Connect smart scale to smartphone, View body parameters, Track data with graphs, Monitor weight evolution, Analyze body mass and fat index, Track muscle percentage

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

**In-app purchases:** none


### Zen Void

[App page](https://appshunter.io/ios/app/zen-void-mood-journal-and-ai/id6754387933)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Surface Precision free?

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

### Is Zen Void free?

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

### Do Surface Precision or Zen Void have ads?

Zen Void shows ads; Surface Precision does not.

### Which is updated more often, Surface Precision or Zen Void?

Surface Precision ships an update every 3 months, and Zen Void every 9 days. Most recently, Surface Precision was updated on October 21, 2026 and Zen Void on October 28, 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.*