# Contrigraph vs SessionTap

The clearest difference is in-app purchases: SessionTap at none against Contrigraph's 1. Contrigraph's advantage is update cadence (every 6 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Contrigraph sells 1 one-off in-app purchase. SessionTap asks for nothing beyond the download.

Contrigraph ships an update every 6 days, SessionTap every 3 months. The most recent releases landed on September 19, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Contrigraph | SessionTap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 months |
| Size | 10 MB | 3 MB |
| Requires iOS | 17.5 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hajime Nakamura](https://appshunter.io/developer/1011217140) | [9592 Solutions UG](https://appshunter.io/developer/1681380056) |

## What reviewers say

### Contrigraph

[App page](https://appshunter.io/ios/app/contrigraph-habit-tracker/id6612007595)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### SessionTap

[App page](https://appshunter.io/ios/app/sessiontap/id6761578371)

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

**In-app purchases:** none


## Frequently asked questions

### Is Contrigraph free?

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

### Is SessionTap free?

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

### Do Contrigraph or SessionTap have ads?

Neither Contrigraph nor SessionTap shows ads.

### Which is updated more often, Contrigraph or SessionTap?

Contrigraph ships an update every 6 days, and SessionTap every 3 months. Most recently, Contrigraph was updated on September 19, 2026 and SessionTap on September 21, 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.*