# Spello vs Introvert

The clearest difference is ads: Introvert at none against Spello's shown. Spello's advantage is review sentiment (63% vs 47%) and iOS requirement (12.0 vs 17.0). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Spello sells 1 in-app purchase, starting at $2.49 per month and Introvert sells 10 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Spello ships an update every 8 days, Introvert every 11 days. The most recent releases landed on October 17, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Spello | Introvert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (889 ratings)](https://appshunter.io/ios/app/introvert-self-development/id1561586203/reviews)** |
| Number of ratings | — | **889** |
| Positive reviews | **62.5% of reviews** | 47.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 11 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 41 MB | 483 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sergei Gavrilko](https://appshunter.io/developer/1478871115) | [ArtIntrovert LLC](https://appshunter.io/developer/1727512095) |

## What reviewers say

### Spello

[App page](https://appshunter.io/ios/app/spello/id1478871386)

Expand your English vocabulary with curated word sets tailored to your proficiency level, from beginner to advanced. Prepare for international exams and track your daily progress with intuitive statistics to build a consistent learning habit.

**Highlights:** Level-based word sets (A1-C2), Preparation for Cambridge Exams, Progress tracking and statistics, Daily learning habit builder, Vocabulary expansion

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Полный доступ | $2.49 | per month |


### Introvert

[App page](https://appshunter.io/ios/app/introvert-self-development/id1561586203)

Access concise, 20-minute lectures summarizing books and studies on diverse topics. Earn certificates and track progress with background playback and offline downloads. Join a global community focused on self-growth.

**Highlights:** 20-minute lectures, Summaries of books and studies, 13+ topics covered, Certificates and progress tracking, Offline downloads, Background playback

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Тариф 1 месяц | $6.99 | per month |
| Monthly rate | $6.99 | per month |
| 1 month subscription | $6.99 | per month |
| 1 year subscription | $49.99 | per year |
| Лекция | $0.99 | one-time |
| Лекция | $4.99 | one-time |
| Видеолекция | $9.99 | one-time |
| Профильный курс | $42.99 | one-time |
| Профильный курс | $49.99 | one-time |
| Профильный курс | $54.99 | one-time |

**What reviewers like**

- 🚀 Interesting and informative lectures
- 👍 Convenient and intuitive interface
- 💡 Gamification elements like rating and rewards
- 🤖 Helpful AI assistant
- 🌐 Diverse range of topics covered

**What reviewers complain about**

- 🐛 Frequent bugs and glitches
- 🔌 Issues with offline mode and downloads
- 💸 Unclear subscription management and cancellation
- 🔍 Lack of search and filtering options
- 🔊 Poor audio/video synchronization

**Reported bugs**

- White screen issues
- Login and registration problems
- Inconsistent progress tracking
- Subscription billing errors
- Compatibility issues on older devices

**Requested features**

- Option to adjust text size
- Improved offline capabilities
- Seamless integration between app and website
- More personalization options
- Subtitles and transcripts for lectures


## Frequently asked questions

### Is Spello free?

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

### Is Introvert free?

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

### Do Spello or Introvert have ads?

Spello shows ads; Introvert does not.

### Which is updated more often, Spello or Introvert?

Spello ships an update every 8 days, and Introvert every 11 days. Most recently, Spello was updated on October 17, 2026 and Introvert on October 27, 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.*