# Calculator Widget Pro vs Chess Clock

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.

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.

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.

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.

## The numbers

| Metric | Calculator Widget Pro | Chess Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (11 ratings)](https://appshunter.io/ios/app/calculator-widget-pro/id6464080498/reviews)** | [4.5 (42 ratings)](https://appshunter.io/ios/app/chess-clock-speed-timer/id6497330518/reviews) |
| Number of ratings | 11 | **42** |
| Positive reviews | 66.7% of reviews | **68.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 19 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Todd Bowden](https://appshunter.io/developer/319589187) | [Natalia Jakubczyk-Gajewska](https://appshunter.io/developer/1307515292) |

## What reviewers say

### Calculator Widget Pro

[App page](https://appshunter.io/ios/app/calculator-widget-pro/id6464080498)

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:** macOS Compatibility

**In-app purchases:** none


### Chess Clock

[App page](https://appshunter.io/ios/app/chess-clock-speed-timer/id6497330518)

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:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week Premium Subscription | $4.99 | per 7 days |
| Chess Clock Premium | $5.99 | per 7 days |
| Chess Clock Premium | $7.99 | per month |
| Chess Clock Premium | $14.99 | per 3 months |
| Chess Clock Premium | $29.99 | per year |
| Chess Clock Premium Lifetime | $29.99 | one-time |


## Frequently asked 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.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*