# Chess Widget vs Simple Logarithm PRO

The clearest difference is review sentiment: Chess Widget at 67% against Simple Logarithm PRO's 0%. Chess Widget also leads on price (Free vs $1.99) and update cadence (weekly vs monthly). Simple Logarithm PRO's advantage is in-app purchases (none vs 6). On ads, device support and iOS requirement there is nothing between them.

Chess Widget is free to download; Simple Logarithm PRO costs $1.99 up front. Chess Widget sells 6 in-app purchases, starting at $1.99 per month. Simple Logarithm PRO asks for nothing beyond the download.

Chess Widget ships an update weekly, Simple Logarithm PRO monthly. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Chess Widget | Simple Logarithm PRO |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.5 (14 ratings)](https://appshunter.io/ios/app/chess-widget-daily-puzzles/id1645667912/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | **66.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | **Freemium** | Paid |
| Size | 33 MB | 180 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oleg Soloviev](https://appshunter.io/developer/1263912907) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### Chess Widget

[App page](https://appshunter.io/ios/app/chess-widget-daily-puzzles/id1645667912)

This app brings chess puzzles and games directly to your Home Screen. Solve daily puzzles, play against AI, analyze historical games, or even play multiplayer with friends nearby, all without an internet connection.

**Highlights:** Home screen chess puzzles, Play against AI, Analyze historical games, Board editor mode, Offline multiplayer, Daily new puzzles

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Yearly Subscription | $19.99 | per year |
| 1 coffee | $4.99 | one-time |
| 2 coffees | $9.99 | one-time |
| 5 coffees | $24.99 | one-time |
| 10 coffees | $49.99 | one-time |


### Simple Logarithm PRO

[App page](https://appshunter.io/ios/app/simple-logarithm-pro/id1662897702)

This app simplifies complex logarithm and exponentiation calculations with step-by-step solutions. It supports various input types, including decimals, fractions, and negative values, and provides a history of all calculations.

**Highlights:** Logarithm and exponentiation modes, Step-by-step solution display, Support for decimals, fractions, and negative values, Calculation history, Transformation between logarithm and exponentiation, Logarithm rules infographic, Solution sharing

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

**In-app purchases:** none


## Frequently asked questions

### Is Chess Widget free?

Chess Widget is free to download, with in-app purchases available.

### Is Simple Logarithm PRO free?

Simple Logarithm PRO costs $1.99, with no in-app purchases.

### Do Chess Widget or Simple Logarithm PRO have ads?

Neither Chess Widget nor Simple Logarithm PRO shows ads.

### Which is updated more often, Chess Widget or Simple Logarithm PRO?

Chess Widget ships an update weekly, and Simple Logarithm PRO monthly. Most recently, Chess Widget was updated on October 14, 2026 and Simple Logarithm PRO on October 2, 2026.

---

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