# BLaS vs Integral function

The clearest difference is update cadence: Integral function at every 4 months against BLaS's every 13 months. On price, ads, in-app purchases and device support there is nothing between them.

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

BLaS ships an update every 13 months, Integral function every 4 months. The most recent releases landed on July 8, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | BLaS | Integral function |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/blas/id6446889296/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 58 MB | 29 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [LUCKYSOFT OU](https://appshunter.io/developer/1242118176) | [ANDRII NAIDONOV](https://appshunter.io/developer/1689089068) |

## What reviewers say

### BLaS

[App page](https://appshunter.io/ios/app/blas/id6446889296)

This fitness app allows users to easily book group training sessions, check their membership status, and receive notifications about classes and promotions. It also functions as a digital access card for gym entry.

**Highlights:** Book group training sessions, Check training balance, Manage membership validity, Purchase new memberships, Receive notifications, Use as a digital access card

**Features:** macOS Compatibility

**In-app purchases:** none


### Integral function

[App page](https://appshunter.io/ios/app/integral-function/id6449439120)

**In-app purchases:** none


## Frequently asked questions

### Is BLaS free?

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

### Is Integral function free?

Integral function is free to download, with no in-app purchases.

### Do BLaS or Integral function have ads?

Neither BLaS nor Integral function shows ads.

### Which is updated more often, BLaS or Integral function?

BLaS ships an update every 13 months, and Integral function every 4 months. Most recently, BLaS was updated on July 8, 2026 and Integral function on September 8, 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.*