# ∞ Sudoku ∞ vs Track Series

The clearest difference is price: Track Series at Free against ∞ Sudoku ∞'s $4.99. Track Series also leads on rating (5.0 vs 4.5) and ads (none vs shown). On ratings volume, in-app purchases, device support and iOS requirement there is nothing between them.

Track Series is free to download; ∞ Sudoku ∞ costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Track Series holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

∞ Sudoku ∞ ships an update every 11 months, Track Series every 3 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ∞ Sudoku ∞ | Track Series |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.5 (2 ratings)](https://appshunter.io/ios/app/sudoku/id625720673/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/track-series/id6787390966/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 11 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 13 MB | 4 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Oscar Tsang](https://appshunter.io/developer/416987065) | [Huseyin Tuna](https://appshunter.io/developer/465646014) |

## What reviewers say

### ∞ Sudoku ∞

[App page](https://appshunter.io/ios/app/sudoku/id625720673)

This application offers a dynamic Sudoku experience with an infinite number of puzzles. It features auto-save functionality and five distinct difficulty levels to challenge players of all skill sets. Enjoy endless Sudoku fun on your iOS devices.

**Highlights:** Dynamically generating puzzles, Auto save, Five difficulty levels, Infinite gameplay

**In-app purchases:** none


### Track Series

[App page](https://appshunter.io/ios/app/track-series/id6787390966)

Easily keep track of your favorite TV shows and movies. Mark episodes as watched, view your progress, and discover new content. All your data is kept private on your device.

**Highlights:** Track TV shows and movies, Mark episodes as watched, View progress per season/show, Calendar view for airing dates, Discover trending and popular shows, Import watch history from TV Time, 100% private, data stays on device

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

**In-app purchases:** none


## Frequently asked questions

### Is ∞ Sudoku ∞ free?

∞ Sudoku ∞ costs $4.99, with no in-app purchases.

### Is Track Series free?

Track Series is free to download, with no in-app purchases.

### Which has better reviews, ∞ Sudoku ∞ or Track Series?

Track Series is rated higher. ∞ Sudoku ∞ averages 4.5 out of 5 from 2 ratings, while Track Series averages 5.0 from 1 ratings.

### Do ∞ Sudoku ∞ or Track Series have ads?

∞ Sudoku ∞ shows ads; Track Series does not.

### Which is updated more often, ∞ Sudoku ∞ or Track Series?

∞ Sudoku ∞ ships an update every 11 months, and Track Series every 3 weeks. Most recently, ∞ Sudoku ∞ was updated on November 1, 2026 and Track Series on October 31, 2026.

---

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