# Простой Фитнес vs Si NAILS Studio

The clearest difference is update cadence: Si NAILS Studio at every 2 months against Простой Фитнес's every 8 months. On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Простой Фитнес ships an update every 8 months, Si NAILS Studio every 2 months. The most recent releases landed on October 12, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Простой Фитнес | Si NAILS Studio |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 26 MB | 29 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Anna Surkova](https://appshunter.io/developer/1564565288) | [Konstantin Marinskii](https://appshunter.io/developer/1734214165) |

## What reviewers say

### Простой Фитнес

[App page](https://appshunter.io/ios/app/id1564565286)

This app offers a straightforward approach to fitness tracking and workout guidance. It helps users log their exercises and progress without unnecessary complexity. Focus on achieving your fitness goals with a simple, user-friendly interface.

**Highlights:** Exercise logging, Progress tracking, User-friendly interface, Workout guidance, Fitness goal achievement

**Features:** macOS Compatibility

**In-app purchases:** none


### Si NAILS Studio

[App page](https://appshunter.io/ios/app/si-nails-studio/id1579292687)

Book appointments with beauty professionals conveniently through this app. Easily manage your bookings, receive reminders, and stay updated on special offers and discounts.

**Highlights:** 24/7 appointment booking, Repeat bookings in 2 clicks, Push notification reminders, Leave reviews after visits, Information on promotions and discounts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Простой Фитнес free?

Простой Фитнес is free to download, with no in-app purchases.

### Is Si NAILS Studio free?

Si NAILS Studio is free to download, with no in-app purchases.

### Do Простой Фитнес or Si NAILS Studio have ads?

Neither Простой Фитнес nor Si NAILS Studio shows ads.

### Which is updated more often, Простой Фитнес or Si NAILS Studio?

Простой Фитнес ships an update every 8 months, and Si NAILS Studio every 2 months. Most recently, Простой Фитнес was updated on October 12, 2026 and Si NAILS Studio on October 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.*