# Only PGDBA Prep vs Vincify | AI To

The clearest difference is in-app purchases: Only PGDBA Prep at none against Vincify | AI To's 6. Vincify | AI To's advantage is update cadence (monthly vs every 3 months) and iOS requirement (15.0 vs 17.5). On price, ads and device support there is nothing between them.

Both are free to download. Vincify | AI To sells 6 in-app purchases, starting at $9.99 per month. Only PGDBA Prep asks for nothing beyond the download.

Only PGDBA Prep ships an update every 3 months, Vincify | AI To monthly. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Only PGDBA Prep | Vincify | AI To |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/vincify-ai-to-learn-list/id6753122332/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 247 MB | 192 MB |
| Requires iOS | 17.5 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Manjeet Mehta](https://appshunter.io/developer/1188974617) | [Colin Weijenberg](https://appshunter.io/developer/1839018935) |

## What reviewers say

### Only PGDBA Prep

[App page](https://appshunter.io/ios/app/only-pgdba-prep/id6478480924)

**Features:** macOS Compatibility

**In-app purchases:** none


### Vincify | AI To

[App page](https://appshunter.io/ios/app/vincify-ai-to-learn-list/id6753122332)

This app uses AI to create personalized daily learning plans based on your interests. It offers bite-sized lessons, quizzes, and curated long-reads to help you build knowledge and track your progress. Discover new topics and embark on structured learning journeys.

**Highlights:** AI-generated daily learning plans, Bite-sized lessons and micro-learning, Interactive quizzes for knowledge reinforcement, AI-suggested topic discovery, Structured learning journeys, Curated long-reads in Leonardo's Library, Progress tracking and knowledge revisit

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bite-Sized (Monthly) | $9.99 | per month |
| Polymath Premium (Monthly) | $13.99 | per month |
| Polymath Premium (Monthly) | $14.99 | per month |
| Polymath Premium (Yearly) | $59.99 | per year |
| Bite-Sized Lessons (Yearly) | $119.99 | per year |
| Polymath Premium (Yearly) | $159.99 | per year |


## Frequently asked questions

### Is Only PGDBA Prep free?

Only PGDBA Prep is free to download, with no in-app purchases.

### Is Vincify | AI To free?

Vincify | AI To is free to download, with in-app purchases available.

### Do Only PGDBA Prep or Vincify | AI To have ads?

Neither Only PGDBA Prep nor Vincify | AI To shows ads.

### Which is updated more often, Only PGDBA Prep or Vincify | AI To?

Only PGDBA Prep ships an update every 3 months, and Vincify | AI To monthly. Most recently, Only PGDBA Prep was updated on November 4, 2026 and Vincify | AI To on October 30, 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.*