Comparison

Calculator Widget Pro vs Chess Clock

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

Head to head
About

Calculator Widget Pro

Access a fully functional calculator directly from your Home Screen with interactive widgets. Perform basic arithmetic, scientific calculations, and even calculate tips without opening the app.

Highlights
  • Home screen calculator widget
  • Basic arithmetic operations
  • Advanced scientific functions
  • Tip calculation
  • Interactive widget design
Features
Read full description

Add the calculator widget to your Home Screen and easily do calculations of addition, subtraction, multiplication, division, advanced scientific functions and even tips with Calculator Widget Pro.

About

Chess Clock

This app provides a clean, ad-free timer for various chess game formats, including blitz and rapid. It offers customizable time controls, supports Fischer and Bronstein increment modes, and tracks game statistics for both players. Easily adjust time during a game and switch between portrait and landscape orientations.

Highlights
  • Ad-free interface
  • Fischer and Bronstein increment modes
  • Customizable timers
  • Adjust time during game
  • Move counter and statistics
  • Portrait and landscape support
Features
Read full description

Need a fast and reliable chess clock for your speed games? Looking for a clean, distraction-free chess timer without ads? Chess Clock is a simple tool designed to time your chess matches quickly and efficiently — whenever you need it. Perfect for blitz, bullet, rapid, classical chess, or any two-player game where precise time control matters. Why Choose This Chess Clock? ● Clean and simple interface ● No ads — no distractions ● Large, easy-to-read fonts ● Fast and reliable performance ● Designed for both casual and tournament use Key Features ● Select your game duration and increment with just a few taps ● Support for both Fischer and Bronstein increment modes ● Works in portrait and landscape orientation ● Customize your own timers ● Pause the timer at any time ● Adjust remaining time in the middle of a game ● Move counter and game statistics for both players ● Completely ad-free experience — — — How does this chess clock work? Simply select your game duration and increment type, then tap to start. Each player taps their side of the screen after making a move to switch the timer. What increment modes are supported? The app supports both Fischer and Bronstein increments. Fischer adds a fixed amount of time after every move. Bronstein adds time up to the increment amount based on how quickly you moved. Can I adjust the timer during a game? Yes. You can pause the game and adjust the remaining time for either player at any point during the match. Can I create custom time controls? Yes. You can set your own player time, choose an increment type, and specify the increment duration to match any format you need. Does the app track game statistics? Yes. The app records total game time, time played per player, number of moves, and average time per move. Does the app contain ads? No. The app is completely ad-free for a distraction-free experience. Does it work in landscape mode? Yes. The app fully supports both portrait and landscape orientations. Is the app free? The app is free to download and use, with optional premium features available via in-app purchase. — — — If you enjoy the app, please leave a review on the App Store. Your feedback really helps. Questions or suggestions? We'd love to hear from you. Support Email: AppsForParents@gmail.com Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/site/appsforparentsprivacy/

Screenshots

Calculator Widget Pro4 screens
Chess Clock4 screens

Verdict

The call

The clearest difference is in-app purchases: Calculator Widget Pro at none against Chess Clock's 7. Calculator Widget Pro also leads on update cadence (every 2 days vs every 5 weeks). Chess Clock's advantage is ratings volume (42 vs 11). On price, rating, review sentiment and ads 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 6 in-app purchases, starting at $4.99 per 7 days. Calculator Widget Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Calculator Widget Pro against 4.5 for Chess Clock. Both are backed by a comparable volume of ratings — 11 and 42 respectively. Written reviews are what separate them: 67% of Calculator Widget Pro's written reviews are positive against 69% of Chess Clock's.

UpkeepUpdate frequency

Calculator Widget Pro ships an update every 2 days, Chess Clock every 5 weeks. The most recent releases landed on September 13, 2026 and September 19, 2026 respectively.

Scorecard4 real differences · 6 level
Calculator Widget Pro versus Chess Clock: the parameters behind the verdict, then further details
ParameterCalculator Widget ProChess Clock
PriceFreeFree
Rating4.5 (11 ratings) — better4.5 (42 ratings)
Positive reviews66.7% of reviews68.8% of reviews — better
Number of ratings1142 — better
Update frequencyEvery 2 days — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.4 — better
Further details — not scored
Size2 MB19 MB
Age rating4++4
DeveloperTodd BowdenNatalia Jakubczyk-Gajewska

Customer experience

Calculator Widget Pro

All ratings11 ratings
Positive81.8%
Neutral9.1%
Negative9.1%
Written reviews6 reviews
Positive66.7%
Neutral16.7%
Negative16.7%

Chess Clock

All ratings42 ratings
Positive88.1%
Neutral0.0%
Negative11.9%
Written reviews16 reviews
Positive68.8%
Neutral0.0%
Negative31.3%

In-app purchases

None

Calculator Widget Pro

No in-app purchases

6 purchases

Chess Clock

Subscriptions5
  • 1 Week Premium Subscription7 Days trial$4.997 Days
  • Chess Clock Premium3 Days trial$5.997 Days
  • Chess Clock Premium3 Days trial$7.991 Month
Show 2 more
  • Chess Clock Premium$14.993 Months
  • Chess Clock Premium2 variants$29.991 Year
One-time1
  • Chess Clock Premium Lifetime$29.99

Questions

Is Calculator Widget Pro free?
Calculator Widget Pro is free to download, with no in-app purchases.
Is Chess Clock free?
Chess Clock is free to download, with in-app purchases available.
Which has better reviews, Calculator Widget Pro or Chess Clock?
Calculator Widget Pro is rated higher. Calculator Widget Pro averages 4.5 out of 5 from 11 ratings, while Chess Clock averages 4.5 from 42 ratings.
Do Calculator Widget Pro or Chess Clock have ads?
Neither Calculator Widget Pro nor Chess Clock shows ads.
Which is updated more often, Calculator Widget Pro or Chess Clock?
Calculator Widget Pro ships an update every 2 days, and Chess Clock every 5 weeks. Most recently, Calculator Widget Pro was updated on September 13, 2026 and Chess Clock on September 19, 2026.

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