# Deduce vs Slitherlink Diamond

The clearest difference is price: Slitherlink Diamond at Free against Deduce's $2.99. Slitherlink Diamond also leads on update cadence (every 6 weeks vs every 4 months) and iOS requirement (13.0 vs 16.0). Deduce's advantage is in-app purchases (none vs 3) and chart position (#116 vs unranked). On ads and device support there is nothing between them.

Slitherlink Diamond is free to download; Deduce costs $2.99 up front. Slitherlink Diamond sells 3 one-off in-app purchases. Deduce asks for nothing beyond the download.

Deduce ships an update every 4 months, Slitherlink Diamond every 6 weeks. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Deduce | Slitherlink Diamond |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/deduce/id351558195/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 88.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Paid | — |
| Best chart rank | **#116** | — |
| Size | 46 MB | 64 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Obviously Genuine](https://appshunter.io/developer/351558198) | [Marcelo Pars](https://appshunter.io/developer/1209823528) |

## What reviewers say

### Deduce

[App page](https://appshunter.io/ios/app/deduce/id351558195)

**Currently charting:** #116 Top Paid · Word (US App Store)

This word game challenges players to guess a hidden mystery word using logic and vocabulary skills. It offers adjustable difficulty levels, tracks progress with statistics, and provides definitions for learned words. Players can also share games and earn achievements.

**Highlights:** Guess hidden mystery words, Logic and vocabulary challenges, Adjustable difficulty levels, Game statistics and progress tracking, Mystery word definitions, Save and share games, Game Center integration and achievements

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

**In-app purchases:** none


### Slitherlink Diamond

[App page](https://appshunter.io/ios/app/slitherlink-diamond/id6753644150)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 HINTS | $0.99 | one-time |
| 25 HINTS | $1.99 | one-time |
| 125 HINTS | $2.99 | one-time |


## Frequently asked questions

### Is Deduce free?

Deduce costs $2.99, with no in-app purchases.

### Is Slitherlink Diamond free?

Slitherlink Diamond is free to download, with in-app purchases available.

### Do Deduce or Slitherlink Diamond have ads?

Neither Deduce nor Slitherlink Diamond shows ads.

### Which is updated more often, Deduce or Slitherlink Diamond?

Deduce ships an update every 4 months, and Slitherlink Diamond every 6 weeks. Most recently, Deduce was updated on October 27, 2026 and Slitherlink Diamond on October 24, 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.*