# Chimer vs ZattaMemo

The clearest difference is price: ZattaMemo at Free against Chimer's $1.99. Chimer's advantage is in-app purchases (none vs 1) and device support (3 vs 1). On update cadence and ads there is nothing between them.

ZattaMemo is free to download; Chimer costs $1.99 up front. ZattaMemo sells 1 one-off in-app purchase. Chimer asks for nothing beyond the download.

Chimer ships an update fortnightly, ZattaMemo every 3 weeks. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Chimer | ZattaMemo |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Paid | — |
| Size | 1 MB | 3 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hwasung Kim](https://appshunter.io/developer/1659453181) | [Tatsuyoshi Sasaki](https://appshunter.io/developer/1888368184) |

## What reviewers say

### Chimer

[App page](https://appshunter.io/ios/app/chimer/id6480462949)

This app provides periodic chime alarms that work in the background, even on your watch. Set custom intervals and repeat counts for continuous or finite notifications. It's designed for focused work or timed tasks.

**Highlights:** Periodic chime alarms, Background operation, Watch complications, Customizable intervals, Repeat count setting, Infinite or finite alarms

**Features:** Apple Watch app

**In-app purchases:** none


### ZattaMemo

[App page](https://appshunter.io/ios/app/zattamemo/id6761243555)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZattaMemo Upgrade | $3.99 | one-time |


## Frequently asked questions

### Is Chimer free?

Chimer costs $1.99, with no in-app purchases.

### Is ZattaMemo free?

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

### Do Chimer or ZattaMemo have ads?

Neither Chimer nor ZattaMemo shows ads.

### Which is updated more often, Chimer or ZattaMemo?

Chimer ships an update fortnightly, and ZattaMemo every 3 weeks. Most recently, Chimer was updated on October 17, 2026 and ZattaMemo on October 13, 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.*