Comparison

Surface Precision vs Zen Void

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Surface Precision

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
Read full description

You will be able to connect your smart scale with your Smartphone. It allows you to view different body parameters according to the characteristics of the scale, allowing you to track the data obtained during the measurements on different days through graphs and data stored in the app. This way, you will be able to check the evolution of weight, body mass, fat index and muscle among other parameters.

About

Zen Void

Features
Read full description

Zen Void is your peaceful space to pause, reflect, and reset. It’s built for quiet moments - to help you breathe, check in with yourself, and feel a little less alone at the end of the day. Zen Void combines simple mood tracking, private journaling, breathing tools, and a gentle in-app companion called Zeno who you can talk to or mediwhenever your head feels busy. What you can do • Log how you’re feeling with a quick mood check-in • Add optional notes and gratitude to clear some space in your mind • Track energy, stress, sleep, and how socially “on” you feel • Use calm breathing modes with soft visuals and no interruptions • Read small reflections and reminders that encourage you to slow down • Set gentle notifications to nudge you back to your breathing or journal Meet Zeno - your calm in-app companion • Chat to Zeno when you need someone quiet to talk to • Zeno can gently respond with awareness of your recent moods, stress, energy, sleep, and social battery • No advice, no therapy talk - just a steady, validating presence • Designed to feel like a soft, late-night check-in with a friend • Can guide you through meditation at any time. Zeno can occasionally reference your recent patterns in broad ways (like noticing if stress has been high or energy has been low lately), so the conversation feels more personal and grounded in how you’ve actually been feeling. A space that doesn’t rush you • Night-sky inspired design, made for low-light and late-night use • No timers or pressure to “do it right” • Journaling and breathing are always the focus • Ads are kept away from breathing flows and reflective moments Whether you’re unwinding after a long shift, trying to build a small self-care habit, or just need somewhere quiet to vent for a minute, Zen Void gives you a gentle space to land. Take a breath. Open Zen Void.

Screenshots

Surface Precision4 screens
Zen Void4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
Surface Precision versus Zen Void: the parameters behind the verdict, then further details
ParameterSurface PrecisionZen Void
PriceFreeFree
Rating2.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 monthsEvery 9 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.0 — better15.1
Further details — not scored
Size48 MB108 MB
Age rating4+4+
DeveloperCecotec innovaciones S.L.Andrew Blewett

In-app purchases

None

Surface Precision

No in-app purchases

None

Zen Void

No in-app purchases

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.

Other comparisons