# Time Arrow vs 倒数321

The clearest difference is ads: 倒数321 at none against Time Arrow's shown. Time Arrow's advantage is review sentiment (77% vs 50%) and iOS requirement (9.0 vs 14.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Time Arrow sells 2 in-app purchases, starting at $1.99 per year and 倒数321 sells 17 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Time Arrow against 4.6 for 倒数321. Both are backed by a comparable volume of ratings — 88 and 34 respectively. Written reviews are what separate them: 77% of Time Arrow's written reviews are positive against 50% of 倒数321's.

Time Arrow ships an update every 5 weeks, 倒数321 monthly. The most recent releases landed on September 27, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Time Arrow | 倒数321 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (88 ratings)](https://appshunter.io/ios/app/time-arrow-countdown-tracker/id1324869633/reviews)** | [4.6 (34 ratings)](https://appshunter.io/ios/app/321/id1596420055/reviews) |
| Number of ratings | **88** | 34 |
| Positive reviews | **76.8% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Freemium | Freemium |
| Size | 25 MB | 93 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [重赞 韩](https://appshunter.io/developer/1131982671) | [MiaoA Technology Co., Ltd.](https://appshunter.io/developer/1596420057) |

## What reviewers say

### Time Arrow

[App page](https://appshunter.io/ios/app/time-arrow-countdown-tracker/id1324869633)

Track important dates with a countdown and count-up tool. Never forget anniversaries, birthdays, or payment deadlines again. Offers quick recording, sharing, and customizable widgets.

**Highlights:** Countdown and count-up modes, Quick event recording, Card sharing, Multiple widget options, Annual/monthly anniversary display, Cloud backup (Premium), Daily reminders (Premium)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Yearly Subscription | $1.99 | per year |
| Premium | $4.99 | one-time |


### 倒数321

[App page](https://appshunter.io/ios/app/321/id1596420055)

This app helps you track important dates with countdowns and reminders. It supports various events like anniversaries, birthdays, holidays, and tasks, offering personalized widgets and cute pet guardians to enhance your experience.

**Highlights:** Countdown and count-up for important dates, Reminders for anniversaries, birthdays, and holidays, Customizable widgets and desktop icons, Photo sharing with friends via widgets, Support for Lunar calendar events, Event categorization and prioritization, Cute pet guardians for events

**Features:** macOS Compatibility

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 倒数321连续包月优惠 | $0.99 | per month |
| 倒数321连续包月促销 | $1.99 | per month |
| 倒数321月份会员促销 | $2.99 | one-time |
| 倒数321永久会员限时促销 | $2.99 | one-time |
| 倒数321年会员促销 | $3.99 | one-time |
| 倒数321月份会员 | $3.99 | one-time |
| 倒数321永久会员特惠促销 | $3.99 | one-time |
| 倒数321永久会员1折促销 | $3.99 | one-time |
| 倒数321包月会员 | $3.99 | one-time |
| 倒数321包月会员优惠 | $4.99 | one-time |
| 倒数321永久会员限时优惠 | $4.99 | one-time |
| 倒数321永久会员 | $5.99 | one-time |
| 倒数321包月会员促销 | $5.99 | one-time |
| 倒数321年会员 | $9.99 | one-time |
| 倒数321包年会员优惠 | $14.99 | one-time |
| 倒数321包年会员促销 | $14.99 | one-time |
| 倒数321永久会员 | $39.99 | one-time |


## Frequently asked questions

### Is Time Arrow free?

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

### Is 倒数321 free?

倒数321 is free to download, with in-app purchases available.

### Which has better reviews, Time Arrow or 倒数321?

Time Arrow is rated higher. Time Arrow averages 4.7 out of 5 from 88 ratings, while 倒数321 averages 4.6 from 34 ratings.

### Do Time Arrow or 倒数321 have ads?

Time Arrow shows ads; 倒数321 does not.

### Which is updated more often, Time Arrow or 倒数321?

Time Arrow ships an update every 5 weeks, and 倒数321 monthly. Most recently, Time Arrow was updated on September 27, 2026 and 倒数321 on September 10, 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.*