# Study Timer vs Sultan Key

The clearest difference is ads: Sultan Key at none against Study Timer's shown. Study Timer's advantage is iOS requirement (14.0 vs 17.6). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Study Timer sells 7 in-app purchases, starting at $2.99 per month and Sultan Key sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Study Timer ships an update every 2 weeks, Sultan Key every 11 days. The most recent releases landed on September 4, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Study Timer | Sultan Key |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/study-timer-ai-focus-tracker/id1590300077/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 86.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 11 days** |
| Monetization | Free with in-app purchases | — |
| Size | 158 MB | 30 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ataberk Koroglu](https://appshunter.io/developer/1561690167) | [TOSTBANG TEKNOLOJI GIDA MAKINA LOJISTIK TURIZM DANISMANLIK VE SARJ ISTASYONLARI ANONIM SIRKETI](https://appshunter.io/developer/1668982688) |

## What reviewers say

### Study Timer

[App page](https://appshunter.io/ios/app/study-timer-ai-focus-tracker/id1590300077)

Enhance your study habits with a smart focus timer and AI coach. Plan your day, track progress by subject, and stay motivated to achieve your academic and personal development goals.

**Highlights:** AI focus timer, Pomodoro study system, AI coach for planning, Study tracking by lesson/topic, Task management, Exam preparation support

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.99 | per month |
| Monthly Offer | $4.99 | per month |
| 3 Months Offer | $5.99 | per 3 months |
| 6 Months Special Offer! | $12.99 | per 6 months |
| 3 Months Subscription | $12.99 | per 3 months |
| 6 Months Subscription | $19.99 | per 6 months |
| Restore Streak | $0.99 | one-time |


### Sultan Key

[App page](https://appshunter.io/ios/app/sultan-key/id6474119812)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SultanKey Plus | $4.99 | per month |
| SultanKey Premium | $9.99 | per month |
| SultanKey Plus | $49.99 | per year |
| SultanKey Premium | $99.99 | per year |


## Frequently asked questions

### Is Study Timer free?

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

### Is Sultan Key free?

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

### Do Study Timer or Sultan Key have ads?

Study Timer shows ads; Sultan Key does not.

### Which is updated more often, Study Timer or Sultan Key?

Study Timer ships an update every 2 weeks, and Sultan Key every 11 days. Most recently, Study Timer was updated on September 4, 2026 and Sultan Key on September 9, 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.*