# HashMemo | Learn as You Think vs HABIT GHOST

The clearest difference is ads: HashMemo | Learn as You Think at none against HABIT GHOST's shown. HABIT GHOST's advantage is iOS requirement (12.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

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

HashMemo | Learn as You Think ships an update every 10 days, HABIT GHOST every 8 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | HashMemo | Learn as You Think | HABIT GHOST |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | **Every 8 days** |
| Size | 39 MB | 65 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [HASHMEMO, K.K.](https://appshunter.io/developer/1702830886) | [Yusuke Mori](https://appshunter.io/developer/1262722270) |

## What reviewers say

### HashMemo | Learn as You Think

[App page](https://appshunter.io/ios/app/hashmemo-learn-as-you-think/id6462086205)

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

**In-app purchases:** none


### HABIT GHOST

[App page](https://appshunter.io/ios/app/habit-ghost/id6630367791)

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

**In-app purchases:** none


## Frequently asked questions

### Is HashMemo | Learn as You Think free?

HashMemo | Learn as You Think is free to download, with no in-app purchases.

### Is HABIT GHOST free?

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

### Do HashMemo | Learn as You Think or HABIT GHOST have ads?

HABIT GHOST shows ads; HashMemo | Learn as You Think does not.

### Which is updated more often, HashMemo | Learn as You Think or HABIT GHOST?

HashMemo | Learn as You Think ships an update every 10 days, and HABIT GHOST every 8 days. Most recently, HashMemo | Learn as You Think was updated on November 3, 2026 and HABIT GHOST on November 4, 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.*