Comparison

Chess Clock vs ZeroSpin

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

Head to head
About

Chess Clock

This app provides a simple and quick way to compete with friends using a minimalistic design and easy controls. It offers various game modes, move counting, and automatic timer pausing. Enjoy pleasant sounds, haptic feedback, and customizable themes for an enhanced experience.

Highlights
  • Minimalistic design
  • Simple controls
  • Different game modes
  • Move counter
  • Automatic timer pause
  • Customizable themes
Features
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Compete with your friends in an easy and quick way. Chess Clock has everything you need: – Minimalistic design and nice animations – Simple controls and easy-to-read buttons – Different game modes and opportunity to create new modes – Counter of play moves – Timer pauses automatically if the app is interrupted; you could manually pause the clock at any time – Pleasant sounds and haptic – Sound and vibration for low-time warning – Range of stylish themes The main functionality of Chess Clock is free, and it has no ads. If you want to support the app, you could buy premium themes pack.

About

ZeroSpin

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ZeroSpin is a file manager for iPad with the layout you already know from the desktop: columns, list or icons, a sidebar with your locations, and independent windows. BROWSING · Column, list and icon views, with adjustable width. · A sidebar holding your folders, your clouds and your external drives. · Sort by name, size, date or kind. · Search within the folder you have open. OPENING AND EDITING · A code editor with line numbers, syntax highlighting and a monospaced typeface, for scripts and configuration files. Saves in place. · Jupyter notebooks with their cells, their Markdown and their output — and now editable cell by cell, keeping the plots and the results. · Draw on an image and save the result. · Preview for documents, spreadsheets and presentations. · Every file opens in its own window, not in a tab trapped inside the main one. ORGANISING · Copy, move, duplicate, rename, compress and unzip. · A trash you can restore from: deleted items go back where they came from. · Drag and drop both ways, with any other app on the iPad. RUN IT ON YOUR COMPUTER The iPad cannot run a notebook or a script: there is no interpreter and no just-in-time compilation. Your computer can. With BosonCode installed — the app by the same developer that connects the iPad to your machines — ZeroSpin adds "Run in BosonCode" to any .ipynb, .py, .sh or .jl. You pick which machine, the file goes up and opens there, with its GPU and its interpreters. ZeroSpin sees the machines you have already added, so nothing is configured twice. Without BosonCode, ZeroSpin works the same for everything else. YOUR COMPUTERS, INSIDE ZEROSPIN Install the project's free and open-source script on your own Linux or Mac, add that computer in the app, and its folders sit next to yours. · Browse its files in columns, the same as the ones on your tablet. · Open and edit them; saving sends them back to the machine. · A terminal on any folder, in its own window. · Drag files between the tablet and the computer, both ways. It all travels over your private Tailscale network: your computer is never exposed to the internet, and there are no servers in between. The script is free. There is nothing to buy to use any of this. WHAT BOSONCODE ADDS Your tablet cannot run a notebook or a script — no interpreter, no just-in-time compilation. Your computer can. BosonCode, by the same developer, opens any file in the full code editor on your machine: syntax highlighting, extensions, and Jupyter notebooks that actually run, with its GPU and its interpreters. It uses the same computers you already added here, so nothing is configured twice. Without it, everything above still works. NO ACCOUNTS, NO TRACKING No sign-up, no analytics, no th your folders is requested one at a time through the system picker, and ZeroSpin never enumerates files you have not granted.

Screenshots

Chess Clock4 screens
ZeroSpin4 screens

Verdict

The call

The clearest difference is in-app purchases: ZeroSpin at none against Chess Clock's 1. ZeroSpin also leads on update cadence (every 3 days vs every 2 weeks). Chess Clock's advantage is iOS requirement (14.0 vs 17.0). On price, ads 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. Chess Clock sells 1 one-off in-app purchase. ZeroSpin asks for nothing beyond the download.

UpkeepUpdate frequency

Chess Clock ships an update every 2 weeks, ZeroSpin every 3 days. The most recent releases landed on September 22, 2026 and October 3, 2026 respectively.

Scorecard3 real differences · 6 level
Chess Clock versus ZeroSpin: the parameters behind the verdict, then further details
ParameterChess ClockZeroSpin
PriceFreeFree
Rating4.8 (4 ratings) — better—
Number of ratings4 — better—
Update frequencyEvery 2 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS14.0 — better17.0
Further details — not scored
Size2 MB18 MB
Age rating4+4+
DeveloperOleksandr KozlovGary Leonel Guaman Toasa

In-app purchases

1 purchases

Chess Clock

One-time1
  • Premium$0.99
None

ZeroSpin

No in-app purchases

Questions

Is Chess Clock free?
Chess Clock is free to download, with in-app purchases available.
Is ZeroSpin free?
ZeroSpin is free to download, with no in-app purchases.
Do Chess Clock or ZeroSpin have ads?
Neither Chess Clock nor ZeroSpin shows ads.
Which is updated more often, Chess Clock or ZeroSpin?
Chess Clock ships an update every 2 weeks, and ZeroSpin every 3 days. Most recently, Chess Clock was updated on September 22, 2026 and ZeroSpin on October 3, 2026.

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