# HiMemo vs CalibratedNotes

The clearest difference is in-app purchases: HiMemo at none against CalibratedNotes's 1. HiMemo also leads on iOS requirement (13.0 vs 15.0). CalibratedNotes's advantage is update cadence (every 2 days vs every 19 months). On price, ads and device support there is nothing between them.

Both are free to download. CalibratedNotes sells 1 in-app purchase, starting at $2.99 per month. HiMemo asks for nothing beyond the download.

HiMemo ships an update every 19 months, CalibratedNotes every 2 days. The most recent releases landed on September 22, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | HiMemo | CalibratedNotes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 2 days** |
| Size | 30 MB | 50 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hiroyuki Kawai](https://appshunter.io/developer/1286509355) | [AIDEN JASON SEXTON](https://appshunter.io/developer/6790957568) |

## What reviewers say

### HiMemo

[App page](https://appshunter.io/ios/app/himemo/id1506694081)

**Features:** macOS Compatibility

**In-app purchases:** none


### CalibratedNotes

[App page](https://appshunter.io/ios/app/calibratednotes/id6790957566)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalibratedNotes Premium | $2.99 | per month |


## Frequently asked questions

### Is HiMemo free?

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

### Is CalibratedNotes free?

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

### Do HiMemo or CalibratedNotes have ads?

Neither HiMemo nor CalibratedNotes shows ads.

### Which is updated more often, HiMemo or CalibratedNotes?

HiMemo ships an update every 19 months, and CalibratedNotes every 2 days. Most recently, HiMemo was updated on September 22, 2026 and CalibratedNotes on September 12, 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.*