# Logic Grid Puzzles vs Hellfish Parallels

The clearest difference is in-app purchases: Hellfish Parallels at none against Logic Grid Puzzles's 11. Hellfish Parallels also leads on update cadence (every 5 days vs every 2 weeks). Logic Grid Puzzles's advantage is chart position (#147 vs unranked) and iOS requirement (15.0 vs 18.4). On price, ads and device support there is nothing between them.

Both are free to download. Logic Grid Puzzles sells 10 in-app purchases, starting at $4.99 per month. Hellfish Parallels asks for nothing beyond the download.

Logic Grid Puzzles ships an update every 2 weeks, Hellfish Parallels every 5 days. The most recent releases landed on September 27, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Logic Grid Puzzles | Hellfish Parallels |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (39K ratings)](https://appshunter.io/ios/app/logic-grid-puzzles/id919571269/reviews)** | — |
| Number of ratings | **39K** | — |
| Positive reviews | 85.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#147** | — |
| Size | 21 MB | 17 MB |
| Requires iOS | **15.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Egghead Games LLC](https://appshunter.io/developer/809161928) | [Wolfe John Maykut](https://appshunter.io/developer/1812221135) |

## What reviewers say

### Logic Grid Puzzles

[App page](https://appshunter.io/ios/app/logic-grid-puzzles/id919571269)

**Currently charting:** #147 Top Grossing · Word, #179 Top Free · Word (US App Store)

Engage your mind with a collection of unique logic grid puzzles. Progress from beginner to master with increasing difficulty and multiple grid sizes. Utilize smart hints, auto-X, and multi-level undo to enhance your puzzle-solving experience.

**Highlights:** 100 unique logic puzzles, Increasing difficulty levels, Multiple puzzle sizes, Unlimited smart hints, Auto-X for faster entry, Multi-level undo, Error checking

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Puzzles Per Month | $4.99 | per month |
| Vol 1, Smart Logic Puzzles | $2.99 | one-time |
| Vol 2, Smart Logic Puzzles | $2.99 | one-time |
| Vol 3, Smart Logic Puzzles | $2.99 | one-time |
| Vol 4, Smart Logic Puzzles | $2.99 | one-time |
| Vol 5, Smart Logic Puzzles | $2.99 | one-time |
| Vol 6, Smart Logic Puzzles | $2.99 | one-time |
| Vol 7, Smart Logic Puzzles | $2.99 | one-time |
| Vol 8, Smart Logic Puzzles | $2.99 | one-time |
| Vol 9, Smart Logic Puzzles | $2.99 | one-time |

**What reviewers like**

- 🚀 No ads
- 👍 Challenging puzzles
- 👍 Helpful hints
- 👍 Variety of difficulty levels
- 👍 Clean, intuitive interface

**What reviewers complain about**

- 🐛 Occasional puzzle clues that don't make sense
- 🐛 Inability to replay completed puzzles
- 🐛 Repeated puzzles in purchased packs
- 💡 Need for a 'clear all completed' option
- 💡 Desire for more puzzle variety and topics

**Reported bugs**

- Puzzle grid freezing/scaling issues on smaller screens
- Incorrect puzzle solutions or clues

**Requested features**

- Option to show timer and 'expert' time for each puzzle
- Ability to mark 'maybe' options in the grid
- Customizable grid display (e.g. color-coded rows/columns)
- Puzzle pack options sorted by difficulty level


### Hellfish Parallels

[App page](https://appshunter.io/ios/app/hellfish-parallels/id6746019288)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Logic Grid Puzzles free?

Logic Grid Puzzles is free to download, with in-app purchases available.

### Is Hellfish Parallels free?

Hellfish Parallels is free to download, with no in-app purchases.

### Do Logic Grid Puzzles or Hellfish Parallels have ads?

Neither Logic Grid Puzzles nor Hellfish Parallels shows ads.

### Which is updated more often, Logic Grid Puzzles or Hellfish Parallels?

Logic Grid Puzzles ships an update every 2 weeks, and Hellfish Parallels every 5 days. Most recently, Logic Grid Puzzles was updated on September 27, 2026 and Hellfish Parallels on September 8, 2026.

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