# STRUCTOGRAM vs Mentortools Academy

The clearest difference is in-app purchases: STRUCTOGRAM at none against Mentortools Academy's 1. Mentortools Academy's advantage is update cadence (every 4 months vs every 9 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Mentortools Academy sells 1 one-off in-app purchase. STRUCTOGRAM asks for nothing beyond the download.

STRUCTOGRAM ships an update every 9 months, Mentortools Academy every 4 months. The most recent releases landed on September 17, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | STRUCTOGRAM | Mentortools Academy |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 62 MB | 137 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [IBSA Institut für Biostruktur-Analysen AG](https://appshunter.io/developer/1222487681) | [ALPHA DIGITAL MARKETING LLC](https://appshunter.io/developer/1730725705) |

## What reviewers say

### STRUCTOGRAM

[App page](https://appshunter.io/ios/app/structogram/id683979684)

Explore biostructural analysis through interactive sampling and practice. Designed for professionals, this application offers a hands-on way to engage with and understand complex analytical concepts.

**Highlights:** Biostructural analysis exploration, Interactive sampling tool, Practice for professionals, Educational resource

**Features:** macOS Compatibility

**In-app purchases:** none


### Mentortools Academy

[App page](https://appshunter.io/ios/app/mentortools-academy/id6479560421)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Video Marketing Werkzeugkiste | $8.99 | one-time |


## Frequently asked questions

### Is STRUCTOGRAM free?

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

### Is Mentortools Academy free?

Mentortools Academy is free to download, with in-app purchases available.

### Do STRUCTOGRAM or Mentortools Academy have ads?

Neither STRUCTOGRAM nor Mentortools Academy shows ads.

### Which is updated more often, STRUCTOGRAM or Mentortools Academy?

STRUCTOGRAM ships an update every 9 months, and Mentortools Academy every 4 months. Most recently, STRUCTOGRAM was updated on September 17, 2026 and Mentortools Academy on October 5, 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.*