# Teremok vs SunSync

The clearest difference is update cadence: Teremok at every 2 days against SunSync's every 3 weeks. Teremok also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Teremok sells 2 in-app purchases, starting at $9.00 per year and SunSync sells 2 in-app purchases, starting at $1.99 per year. Whichever you choose, the download price is not the number that matters.

Teremok ships an update every 2 days, SunSync every 3 weeks. The most recent releases landed on September 4, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Teremok | SunSync |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Size | 343 MB | 22 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Volodymyr Perelyhin](https://appshunter.io/developer/1833627144) | [Marta Rodriguez](https://appshunter.io/developer/1873973295) |

## What reviewers say

### Teremok

[App page](https://appshunter.io/ios/app/teremok/id6759133376)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Teremok Pro Annual | $9.00 | per year |
| Teremok Pro Lifetime | $18.00 | one-time |


### SunSync

[App page](https://appshunter.io/ios/app/sunsync-circadian-tracker/id6762293528)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Year | $1.99 | per year |
| Lifetime | $2.99 | one-time |


## Frequently asked questions

### Is Teremok free?

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

### Is SunSync free?

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

### Do Teremok or SunSync have ads?

Neither Teremok nor SunSync shows ads.

### Which is updated more often, Teremok or SunSync?

Teremok ships an update every 2 days, and SunSync every 3 weeks. Most recently, Teremok was updated on September 4, 2026 and SunSync 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.*