# BLaS FA vs Integral function

The clearest difference is update cadence: BLaS FA at fortnightly against Integral function's every 4 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 FA ships an update fortnightly, Integral function every 4 months. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | BLaS FA | Integral function |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Monetization | Free | — |
| Size | 16 MB | 29 MB |
| Requires iOS | **12.1** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Valentyna Rumiantseva](https://appshunter.io/developer/1474018998) | [ANDRII NAIDONOV](https://appshunter.io/developer/1689089068) |

## What reviewers say

### BLaS FA

[App page](https://appshunter.io/ios/app/blas-fa/id1537288536)

Stay updated on club news and promotions. Track your visits and account balance, book classes and services, and access the club without a card. Manage your schedule easily.

**Highlights:** Club news and promotions, Attendance and account control, Book classes and services, Club entry without a card, Schedule management

**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 FA free?

BLaS FA 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 FA or Integral function have ads?

Neither BLaS FA nor Integral function shows ads.

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

BLaS FA ships an update fortnightly, and Integral function every 4 months. Most recently, BLaS FA was updated on October 8, 2026 and Integral function 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.*