# SQL Practice vs ChairBack

The clearest difference is in-app purchases: ChairBack at none against SQL Practice's 2. ChairBack also leads on update cadence (weekly vs every 6 months) and rating (5.0 vs 4.7). SQL Practice's advantage is ratings volume (137 vs 5) and chart position (#33 vs unranked). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. SQL Practice sells 2 in-app purchases, starting at $3.99 per 7 days. ChairBack asks for nothing beyond the download.

ChairBack holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: SQL Practice has 137 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 86% of SQL Practice's written reviews are positive against 100% of ChairBack's.

SQL Practice ships an update every 6 months, ChairBack weekly. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | SQL Practice | ChairBack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (137 ratings)](https://appshunter.io/ios/app/sql-practice-learn-database/id6749337619/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/chairback/id6783995804/reviews)** |
| Number of ratings | **137** | 5 |
| Positive reviews | 86.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Monetization | Free | Free |
| Best chart rank | **#33** | — |
| Size | 48 MB | 64 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Marton Greber](https://appshunter.io/developer/1748728717) | [Eric Chernichaw](https://appshunter.io/developer/1892894239) |

## What reviewers say

### SQL Practice

[App page](https://appshunter.io/ios/app/sql-practice-learn-database/id6749337619)

**Currently charting:** #33 Top Grossing · Developer Tools, #100 Top Free · Developer Tools (US App Store)

Master SQL with short, daily interactive sessions. Practice real-world queries and datasets on your phone to build confidence for career changes, professional development, or technical interviews. Learn database concepts and advanced techniques at your own pace.

**Highlights:** 15-minute daily learning sessions, Interactive exercises with real-world datasets, Progressive curriculum from beginner to advanced, Instant feedback and mistake analysis, Gamified progress tracking (streaks, XP, achievements), Master SELECT, JOINs, aggregations, and subqueries

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Access | $3.99 | per 7 days |
| Pro Access | $19.99 | per year |


### ChairBack

[App page](https://appshunter.io/ios/app/chairback/id6783995804)

This app allows barbershops to manage client bookings, loyalty programs, and promotions. Customers can access rewards, view visit history, and manage their data through private links.

**Highlights:** Client booking management, Loyalty punch cards, Promotions and rewards, Customer visit history, Data deletion for customers, Demo shop with full features

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

**In-app purchases:** none


## Frequently asked questions

### Is SQL Practice free?

SQL Practice is free to download, with in-app purchases available.

### Is ChairBack free?

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

### Which has better reviews, SQL Practice or ChairBack?

ChairBack is rated higher. SQL Practice averages 4.7 out of 5 from 137 ratings, while ChairBack averages 5.0 from 5 ratings.

### Do SQL Practice or ChairBack have ads?

Neither SQL Practice nor ChairBack shows ads.

### Which is updated more often, SQL Practice or ChairBack?

SQL Practice ships an update every 6 months, and ChairBack weekly. Most recently, SQL Practice was updated on October 7, 2026 and ChairBack on October 5, 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.*