# Cartogram vs Drift Diary

The clearest difference is in-app purchases: Drift Diary at none against Cartogram's 1. Cartogram's advantage is update cadence (every 2 weeks vs monthly) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Cartogram sells 1 one-off in-app purchase. Drift Diary asks for nothing beyond the download.

Cartogram ships an update every 2 weeks, Drift Diary monthly. The most recent releases landed on September 8, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Cartogram | Drift Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Size | 10 MB | 8 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CENTAUR LABS OU](https://appshunter.io/developer/1790899201) | [Hirokazu Kurokawa](https://appshunter.io/developer/463196366) |

## What reviewers say

### Cartogram

[App page](https://appshunter.io/ios/app/cartogram/id6760616439)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cartogram Pro | $3.99 | one-time |


### Drift Diary

[App page](https://appshunter.io/ios/app/drift-diary/id6761289603)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cartogram free?

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

### Is Drift Diary free?

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

### Do Cartogram or Drift Diary have ads?

Neither Cartogram nor Drift Diary shows ads.

### Which is updated more often, Cartogram or Drift Diary?

Cartogram ships an update every 2 weeks, and Drift Diary monthly. Most recently, Cartogram was updated on September 8, 2026 and Drift Diary on September 9, 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.*