# Linked Words vs Index Sums

The clearest difference is rating: Index Sums at 5.0 against Linked Words's 4.3. Index Sums also leads on in-app purchases (none vs 4) and ads (none vs shown). Linked Words's advantage is update cadence (weekly vs every 3 weeks) and iOS requirement (11.0 vs 17.6). On price, ratings volume and device support there is nothing between them.

Both are free to download. Linked Words sells 4 one-off in-app purchases. Index Sums asks for nothing beyond the download.

Index Sums holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

Linked Words ships an update weekly, Index Sums every 3 weeks. The most recent releases landed on June 1, 2026 and June 24, 2026 respectively.

## The numbers

| Metric | Linked Words | Index Sums |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (3 ratings)](https://appshunter.io/ios/app/linked-words/id6443764039/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/index-sums/id6745894447/reviews)** |
| Number of ratings | 3 | 3 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 123 MB | 25 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tommy Buonomo](https://appshunter.io/developer/1453846487) | [ZORIX LLC](https://appshunter.io/developer/1814371874) |

## What reviewers say

### Linked Words

[App page](https://appshunter.io/ios/app/linked-words/id6443764039)

Connect letters to form words inspired by an image in this word-searching game. With over 150 unique levels and new ones added weekly, it's designed to boost concentration and word association skills for all ages.

**Highlights:** Word-searching gameplay, Image-based word association, Over 150 unique levels, New levels added weekly, In-game coin rewards, Clue system for hints

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 500 coins | $1.99 | one-time |
| No Ads | $2.99 | one-time |
| 2000 coins | $3.99 | one-time |
| 10000 coins | $16.99 | one-time |


### Index Sums

[App page](https://appshunter.io/ios/app/index-sums/id6745894447)

Engage your mind with a Japanese number logic puzzle. Fill grids based on row and column sums, using pure logic to reveal hidden patterns. Offers multiple difficulty levels and daily challenges for continuous mental stimulation.

**Highlights:** Row and column sum logic puzzles, Multiple difficulty levels, Daily challenges, Progress tracking and statistics, Offline play, Customizable themes, Haptic feedback

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Linked Words free?

Linked Words is free to download, with in-app purchases available.

### Is Index Sums free?

Index Sums is free to download, with no in-app purchases.

### Which has better reviews, Linked Words or Index Sums?

Index Sums is rated higher. Linked Words averages 4.3 out of 5 from 3 ratings, while Index Sums averages 5.0 from 3 ratings.

### Do Linked Words or Index Sums have ads?

Linked Words shows ads; Index Sums does not.

### Which is updated more often, Linked Words or Index Sums?

Linked Words ships an update weekly, and Index Sums every 3 weeks. Most recently, Linked Words was updated on June 1, 2026 and Index Sums on June 24, 2026.

---

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