# Hachi vs 試験日カウントダウン

The clearest difference is review sentiment: Hachi at 100% against 試験日カウントダウン's 50%. Hachi also leads on ads (none vs shown) and iOS requirement (16.4 vs 18.0). 試験日カウントダウン's advantage is update cadence (every 10 days vs every 3 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Hachi sells 1 one-off in-app purchase and 試験日カウントダウン sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Hachi ships an update every 3 months, 試験日カウントダウン every 10 days. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Hachi | 試験日カウントダウン |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 11 MB | 7 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [kotobaz](https://appshunter.io/developer/1634727152) | [towa imamoto](https://appshunter.io/developer/1869206632) |

## What reviewers say

### Hachi

[App page](https://appshunter.io/ios/app/hachi-exam-countdown-timer/id6472025719)

This application helps students track upcoming exams with a simple countdown timer. It offers calendar integration, notifications, and a lock screen widget for easy access to exam dates. An in-app purchase unlocks the full widget functionality.

**Highlights:** Exam countdown timer, Calendar integration, Customizable notifications, Lock screen widget, In-app purchase for full widget functionality

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Widget Function | $0.99 | one-time |


### 試験日カウントダウン

[App page](https://appshunter.io/ios/app/id6757892875)

Track upcoming exams and record study time to boost focus and motivation. Visualize your progress with daily study logs and motivational quotes. Upgrade for unlimited tracking and ad-free experience.

**Highlights:** Exam countdown timer, Daily study time recording, Progress graphs, Motivational quotes, Home screen widgets, Multiple exam tracking (premium)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $0.99 | per month |
| プレミアム（買い切り） | $11.99 | one-time |


## Frequently asked questions

### Is Hachi free?

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

### Is 試験日カウントダウン free?

試験日カウントダウン is free to download, with in-app purchases available.

### Do Hachi or 試験日カウントダウン have ads?

試験日カウントダウン shows ads; Hachi does not.

### Which is updated more often, Hachi or 試験日カウントダウン?

Hachi ships an update every 3 months, and 試験日カウントダウン every 10 days. Most recently, Hachi was updated on October 14, 2026 and 試験日カウントダウン on October 15, 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.*