# Quick Skill vs DeltaBook

The clearest difference is update cadence: DeltaBook at weekly against Quick Skill's every 3 weeks. DeltaBook also leads on iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Quick Skill sells 10 one-off in-app purchases and DeltaBook sells 1 in-app purchase, starting at $11.99 per month. Whichever you choose, the download price is not the number that matters.

Quick Skill ships an update every 3 weeks, DeltaBook weekly. The most recent releases landed on September 17, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Quick Skill | DeltaBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/quick-skill/id6749635937/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 45 MB | 57 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [TS4U Inc.](https://appshunter.io/developer/1723520142) | [Adam Weaver](https://appshunter.io/developer/1728008045) |

## What reviewers say

### Quick Skill

[App page](https://appshunter.io/ios/app/quick-skill/id6749635937)

This app offers bite-sized, affordable micro-courses designed for everyday learning. It covers essential life skills, career growth, and personal development, making knowledge accessible for individuals and families.

**Highlights:** Bite-sized courses under 30 minutes, Covers digital literacy, career tips, financial basics, Affordable pricing, Mobile-first and always accessible, Gamification and interactive learning, New courses weekly

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quick Skill | $0.99 | one-time |
| Quick Skill | $1.99 | one-time |
| Quick Skill | $2.99 | one-time |
| Quick Skill | $3.99 | one-time |
| Quick Skill | $4.99 | one-time |
| Quick Skill | $5.99 | one-time |
| Quick Skill | $6.99 | one-time |
| Quick Skill | $7.99 | one-time |
| course_tier_c_price_8.99 | $8.99 | one-time |
| Quick Skill | $9.99 | one-time |


### DeltaBook

[App page](https://appshunter.io/ios/app/deltabook/id6762256857)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Access | $11.99 | per month |


## Frequently asked questions

### Is Quick Skill free?

Quick Skill is free to download, with in-app purchases available.

### Is DeltaBook free?

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

### Do Quick Skill or DeltaBook have ads?

Neither Quick Skill nor DeltaBook shows ads.

### Which is updated more often, Quick Skill or DeltaBook?

Quick Skill ships an update every 3 weeks, and DeltaBook weekly. Most recently, Quick Skill was updated on September 17, 2026 and DeltaBook on September 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*