# TTParent BSB vs TAC Book

The clearest difference is iOS requirement: TAC Book at 12.0 against TTParent BSB's 15.1. On price, update cadence, 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.

TTParent BSB ships an update every 2 months, TAC Book every 5 weeks. The most recent releases landed on September 12, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | TTParent BSB | TAC Book |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/tac-book/id1607290781/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 35 MB | 52 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Overdrive IoT Pte Ltd](https://appshunter.io/developer/1506535988) | [Joga Incorporated Pte. Ltd.](https://appshunter.io/developer/1360252865) |

## What reviewers say

### TTParent BSB

[App page](https://appshunter.io/ios/app/ttparent-bsb/id1546418097)

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

**In-app purchases:** none


### TAC Book

[App page](https://appshunter.io/ios/app/tac-book/id1607290781)

Manage your appointments and classes with this mobile booking app. Access schedules, book activities, and receive important notifications. Members can also register on the go and view their booking history.

**Highlights:** Manage appointments and classes, Access activity schedules, Book and cancel facilities, Receive class notifications, Register on the go, View booking history

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TTParent BSB free?

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

### Is TAC Book free?

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

### Do TTParent BSB or TAC Book have ads?

Neither TTParent BSB nor TAC Book shows ads.

### Which is updated more often, TTParent BSB or TAC Book?

TTParent BSB ships an update every 2 months, and TAC Book every 5 weeks. Most recently, TTParent BSB was updated on September 12, 2026 and TAC Book on June 4, 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.*