# Heptabase vs idiogram

The clearest difference is rating: idiogram at 5.0 against Heptabase's 4.3. Heptabase's advantage is in-app purchases (none vs 1) and update cadence (weekly vs every 2 months). On price and ads there is nothing between them.

Both are free to download. idiogram sells 1 in-app purchase, starting at $0.99 per month. Heptabase asks for nothing beyond the download.

idiogram holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Heptabase has 71 ratings behind it against 1, so its average is the more settled of the two.

Heptabase ships an update weekly, idiogram every 2 months. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Heptabase | idiogram |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (71 ratings)](https://appshunter.io/ios/app/heptabase/id6445801508/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/idiogram-ideas-and-information/id6450397917/reviews)** |
| Number of ratings | **71** | 1 |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | **Free** | Freemium |
| Size | 239 MB | 2 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hepta Platforms, Inc](https://appshunter.io/developer/1673863042) | [Humanist LLC](https://appshunter.io/developer/1154264003) |

## What reviewers say

### Heptabase

[App page](https://appshunter.io/ios/app/heptabase/id6445801508)

This visual note-taking application helps users learn complex subjects. The mobile version offers complete access to all your notes, journals, and whiteboards, allowing you to review your work on the go.

**Highlights:** Visual note-taking, Learn complex topics, Access cards and journals, Read whiteboards, Mobile access

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

**In-app purchases:** none


### idiogram

[App page](https://appshunter.io/ios/app/idiogram-ideas-and-information/id6450397917)

Effortlessly capture and organize your thoughts and information with this app. Record voice notes, save clipboard content, and extract web content. Its semantic search helps you find related notes based on meaning, simplifying knowledge management.

**Highlights:** Voice dictation for quick notes, One-tap clipboard saving, Web content extraction, Summary note generation, Semantic search for related notes, Get Answer feature

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Idiogram Pro - Monthly | $0.99 | per month |


## Frequently asked questions

### Is Heptabase free?

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

### Is idiogram free?

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

### Which has better reviews, Heptabase or idiogram?

idiogram is rated higher. Heptabase averages 4.3 out of 5 from 71 ratings, while idiogram averages 5.0 from 1 ratings.

### Do Heptabase or idiogram have ads?

Neither Heptabase nor idiogram shows ads.

### Which is updated more often, Heptabase or idiogram?

Heptabase ships an update weekly, and idiogram every 2 months. Most recently, Heptabase was updated on October 13, 2026 and idiogram on October 6, 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.*