# TetraClock+ vs Dos Notes

The clearest difference is price: TetraClock+ at $2.99 against Dos Notes's $4.99. TetraClock+ also leads on device support (4 vs 2) and iOS requirement (14.0 vs 16.4). On update cadence, ads and in-app purchases there is nothing between them.

TetraClock+ costs $2.99 and Dos Notes $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on September 20, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | TetraClock+ | Dos Notes |
| --- | --- | --- |
| Price | **$2.99** | $4.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Size | 6 MB | 14 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Legal Prompt Inc.](https://appshunter.io/developer/1490746932) | [Denis Kashin](https://appshunter.io/developer/1140100282) |

## What reviewers say

### TetraClock+

[App page](https://appshunter.io/ios/app/tetraclock-plus-falling-block/id6505106046)

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

**In-app purchases:** none


### Dos Notes

[App page](https://appshunter.io/ios/app/dos-notes/id6754763351)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TetraClock+ free?

TetraClock+ costs $2.99, with no in-app purchases.

### Is Dos Notes free?

Dos Notes costs $4.99, with no in-app purchases.

### Do TetraClock+ or Dos Notes have ads?

Neither TetraClock+ nor Dos Notes shows ads.

### Which is updated more often, TetraClock+ or Dos Notes?

TetraClock+ ships an update every 5 days, and Dos Notes every 5 days. Most recently, TetraClock+ was updated on September 20, 2026 and Dos Notes on September 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*