# Lattice Multiplication vs GRE Vocabulary Builder

The clearest difference is price: GRE Vocabulary Builder at Free against Lattice Multiplication's $3.99. GRE Vocabulary Builder also leads on ratings volume (113 vs 1) and update cadence (every 4 months vs every 10 months). Lattice Multiplication's advantage is rating (5.0 vs 4.6) and review sentiment (100% vs 75%). On ads, in-app purchases and device support there is nothing between them.

GRE Vocabulary Builder is free to download; Lattice Multiplication costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Lattice Multiplication holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: GRE Vocabulary Builder has 113 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Lattice Multiplication's written reviews are positive against 75% of GRE Vocabulary Builder's.

Lattice Multiplication ships an update every 10 months, GRE Vocabulary Builder every 4 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Lattice Multiplication | GRE Vocabulary Builder |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lattice-multiplication/id351024204/reviews)** | [4.6 (113 ratings)](https://appshunter.io/ios/app/gre-vocabulary-builder/id1609463254/reviews) |
| Number of ratings | 1 | **113** |
| Positive reviews | **100.0% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 4 months** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 71 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Esa Helttula](https://appshunter.io/developer/339440196) | [Reev Tech Inc.](https://appshunter.io/developer/1226698203) |

## What reviewers say

### Lattice Multiplication

[App page](https://appshunter.io/ios/app/lattice-multiplication/id351024204)

Learn and practice the lattice multiplication method with this intuitive app. It guides users step-by-step through solving custom or random multiplication problems, making complex calculations visually clear and easier to understand.

**Highlights:** Step-by-step lattice multiplication guide, Custom and random problem generation, Visual animation of calculation steps, Adjustable difficulty and settings, Intuitive interface with customizable themes, Reinforces times tables practice

**Features:** macOS Compatibility

**In-app purchases:** none


### GRE Vocabulary Builder

[App page](https://appshunter.io/ios/app/gre-vocabulary-builder/id1609463254)

Prepare for the GRE with over 1,300 essential words and a comprehensive study guide. Interactive flashcards, audio lessons, and progress tracking help you master vocabulary and understand the test structure. Study offline anytime, anywhere.

**Highlights:** 1300+ GRE words, Interactive flashcards, GRE study guide, Audio-enabled lessons, Progress tracking, Offline mode

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lattice Multiplication free?

Lattice Multiplication costs $3.99, with no in-app purchases.

### Is GRE Vocabulary Builder free?

GRE Vocabulary Builder is free to download, with no in-app purchases.

### Which has better reviews, Lattice Multiplication or GRE Vocabulary Builder?

Lattice Multiplication is rated higher. Lattice Multiplication averages 5.0 out of 5 from 1 ratings, while GRE Vocabulary Builder averages 4.6 from 113 ratings.

### Do Lattice Multiplication or GRE Vocabulary Builder have ads?

Neither Lattice Multiplication nor GRE Vocabulary Builder shows ads.

### Which is updated more often, Lattice Multiplication or GRE Vocabulary Builder?

Lattice Multiplication ships an update every 10 months, and GRE Vocabulary Builder every 4 months. Most recently, Lattice Multiplication was updated on November 1, 2026 and GRE Vocabulary Builder on November 3, 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.*