# 正修微積分 vs Lattica

The clearest difference is review sentiment: 正修微積分 at 100% against Lattica's 50%. 正修微積分 also leads on rating (5.0 vs 3.0) and iOS requirement (6.0 vs 26.0). On price, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

正修微積分 holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 100% of 正修微積分's written reviews are positive against 50% of Lattica's.

## The numbers

| Metric | 正修微積分 | Lattica |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id535402014/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/lattica/id6739730090/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 9 months |
| Monetization | — | Free |
| Size | 29 MB | 3 MB |
| Requires iOS | **6.0** | 26.0 |
| Devices | — | **iPhone** |
| Age rating | 4+ | 4+ |
| Developer | [Nusoft](https://appshunter.io/developer/512462493) | [Sota Iguchi](https://appshunter.io/developer/1603371067) |

## What reviewers say

### 正修微積分

[App page](https://appshunter.io/ios/app/id535402014)

**In-app purchases:** none


### Lattica

[App page](https://appshunter.io/ios/app/lattica/id6739730090)

Visualize atomic arrangements and lattice systems in stunning 3D. This educational tool brings complex crystal structures to life, making it ideal for students and researchers in chemistry, materials science, and crystallography.

**Highlights:** 3D Crystal Models, Lattice Visualization, Interactive Exploration, Zoom and Rotate Structures, Detailed Visuals

**In-app purchases:** none


## Frequently asked questions

### Is 正修微積分 free?

正修微積分 is free to download, with no in-app purchases.

### Is Lattica free?

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

### Which has better reviews, 正修微積分 or Lattica?

正修微積分 is rated higher. 正修微積分 averages 5.0 out of 5 from 1 ratings, while Lattica averages 3.0 from 2 ratings.

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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.*