# Study Timer vs Countdown & Interval Timer

The clearest difference is update cadence: Countdown & Interval Timer at every 5 days against Study Timer's every 3 weeks. Study Timer's advantage is iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Study Timer sells 2 in-app purchases, starting at $1.99 per month and Countdown & Interval Timer sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Study Timer ships an update every 3 weeks, Countdown & Interval Timer every 5 days. The most recent releases landed on September 24, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Study Timer | Countdown & Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 19 MB | 94 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ming Rong Ng](https://appshunter.io/developer/1613121108) | [Tingogo Inc](https://appshunter.io/developer/1689008236) |

## What reviewers say

### Study Timer

[App page](https://appshunter.io/ios/app/study-timer-haenaegi/id6756748581)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $1.99 | per month |
| Yearly Plan | $9.99 | per year |


### Countdown & Interval Timer

[App page](https://appshunter.io/ios/app/countdown-and-interval-timer/id6759101882)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $9.99 | per year |
| Lifetime Premium | $19.99 | one-time |
| Lifetime Premium | $39.99 | one-time |


## Frequently asked questions

### Is Study Timer free?

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

### Is Countdown & Interval Timer free?

Countdown & Interval Timer is free to download, with in-app purchases available.

### Do Study Timer or Countdown & Interval Timer have ads?

Neither Study Timer nor Countdown & Interval Timer shows ads.

### Which is updated more often, Study Timer or Countdown & Interval Timer?

Study Timer ships an update every 3 weeks, and Countdown & Interval Timer every 5 days. Most recently, Study Timer was updated on September 24, 2026 and Countdown & Interval Timer on September 20, 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.*