# U.S Technicians Assn vs Fill In Studio

The clearest difference is update cadence: Fill In Studio at every 2 weeks against U.S Technicians Assn's every 2 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.

U.S Technicians Assn ships an update every 2 months, Fill In Studio every 2 weeks. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | U.S Technicians Assn | Fill In Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fill-in-studio-class-manager/id6756318343/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 126 MB | 61 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eyup Esin](https://appshunter.io/developer/1692068096) | [Fill In LLC](https://appshunter.io/developer/1846910963) |

## What reviewers say

### U.S Technicians Assn

[App page](https://appshunter.io/ios/app/us-technicians-assn/id6476447294)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Fill In Studio

[App page](https://appshunter.io/ios/app/fill-in-studio-class-manager/id6756318343)

This app helps fitness studios and gyms fill empty class spots by connecting them with local clients seeking last-minute bookings. Easily post classes, create discounted deals, and manage all your bookings and payments securely.

**Highlights:** Studio dashboard for bookings and revenue, Post classes with details and photos, Create flash deals for last-minute openings, Manage class bookings and attendee lists, Secure Stripe Connect payouts, Instant notifications for new bookings

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

**In-app purchases:** none


## Frequently asked questions

### Is U.S Technicians Assn free?

U.S Technicians Assn is free to download, with no in-app purchases.

### Is Fill In Studio free?

Fill In Studio is free to download, with no in-app purchases.

### Do U.S Technicians Assn or Fill In Studio have ads?

Neither U.S Technicians Assn nor Fill In Studio shows ads.

### Which is updated more often, U.S Technicians Assn or Fill In Studio?

U.S Technicians Assn ships an update every 2 months, and Fill In Studio every 2 weeks. Most recently, U.S Technicians Assn was updated on October 15, 2026 and Fill In Studio on October 10, 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.*