# Word Abacus vs Number Grid Challenge

The clearest difference is in-app purchases: Number Grid Challenge at none against Word Abacus's 1. Number Grid Challenge also leads on update cadence (every 4 days vs monthly). Word Abacus's advantage is iOS requirement (9.3 vs 11.0). On price, ads and device support there is nothing between them.

Both are free to download. Word Abacus sells 1 one-off in-app purchase. Number Grid Challenge asks for nothing beyond the download.

Word Abacus ships an update monthly, Number Grid Challenge every 4 days. The most recent releases landed on October 23, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Word Abacus | Number Grid Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (20 ratings)](https://appshunter.io/ios/app/word-abacus/id389992194/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 39.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 30 MB | 38 MB |
| Requires iOS | **9.3** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TLogic.de](https://appshunter.io/developer/327755338) | [Davide Sardei](https://appshunter.io/developer/668430430) |

## What reviewers say

### Word Abacus

[App page](https://appshunter.io/ios/app/word-abacus/id389992194)

Engage your mind with a unique word puzzle game that combines strategy and relaxation. Connect letters to form words and then slide them like an abacus to discover new combinations and hidden words. This is a calm, skill-based challenge for thoughtful players.

**Highlights:** Unique sliding letter mechanic, Endless word possibilities, Improves vocabulary and spelling, Works offline, No time limits, In-game word hints (Premium)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No-Ads-Upgrade | $1.99 | one-time |

**What reviewers like**

- 💡 Clever and challenging gameplay
- 👍 Addictive and fun
- 🧠 Keeps mind sharp
- 🌟 Unique word game concept
- 🆓 Free to play

**What reviewers complain about**

- 🐛 Frequent crashes and freezing
- 🐌 Laggy touch response
- ⏳ Difficulty increases too rapidly
- ❌ Some words not accepted
- 🔄 Game resets or progress lost

**Reported bugs**

- Game freezes on startup or during play
- App crashes frequently, especially at higher levels
- Touch input is laggy or unresponsive
- Progress is not saved, game resets to level 1
- Screen orientation is locked vertically

**Requested features**

- Allow continuing game after high score/longest word
- Add a back button for missed letters
- Option to turn off red letters
- Ability to look up words during the game
- More vowels in higher levels


### Number Grid Challenge

[App page](https://appshunter.io/ios/app/number-grid-challenge/id6453168573)

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

**In-app purchases:** none


## Frequently asked questions

### Is Word Abacus free?

Word Abacus is free to download, with in-app purchases available.

### Is Number Grid Challenge free?

Number Grid Challenge is free to download, with no in-app purchases.

### Do Word Abacus or Number Grid Challenge have ads?

Both Word Abacus and Number Grid Challenge show ads.

### Which is updated more often, Word Abacus or Number Grid Challenge?

Word Abacus ships an update monthly, and Number Grid Challenge every 4 days. Most recently, Word Abacus was updated on October 23, 2026 and Number Grid Challenge on October 16, 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.*