# NULL Memo vs Timo

The clearest difference is update cadence: NULL Memo at daily against Timo's every 3 days. NULL Memo also leads on iOS requirement (16.6 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. NULL Memo sells 1 one-off in-app purchase and Timo sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

NULL Memo ships an update daily, Timo every 3 days. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | NULL Memo | Timo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 days |
| Monetization | — | Freemium |
| Size | 60 MB | 8 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Aaron Chan](https://appshunter.io/developer/1888707957) | [Daisuke Iwamoto](https://appshunter.io/developer/6779030911) |

## What reviewers say

### NULL Memo

[App page](https://appshunter.io/ios/app/null-memo-ideas-notes-lists/id6761292505)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NULL Memo Pro | $2.99 | one-time |


### Timo

[App page](https://appshunter.io/ios/app/timo-shared-calendar/id6796253086)

Easily share your schedule with family, friends, or colleagues without creating accounts. Sync events instantly across devices and manage all aspects of your day, from daily tasks to travel plans, with rich event details and smart notifications.

**Highlights:** Share calendars via invite code or link, Automatic event sync across devices, Offline event synchronization, Detailed event management (location, participants, reminders), Dedicated travel dashboard, Searchable events with filters, Attach photos and videos to events

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Timo Premium（月額） | $1.99 | per month |
| Timo Premium（年額） | $19.99 | per year |


## Frequently asked questions

### Is NULL Memo free?

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

### Is Timo free?

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

### Do NULL Memo or Timo have ads?

Neither NULL Memo nor Timo shows ads.

### Which is updated more often, NULL Memo or Timo?

NULL Memo ships an update daily, and Timo every 3 days. Most recently, NULL Memo was updated on October 1, 2026 and Timo on October 3, 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.*