# SwiftCard vs PDB Viewer

The clearest difference is price: PDB Viewer at Free against SwiftCard's $12.99. SwiftCard's advantage is device support (4 vs 2). On update cadence, ads, in-app purchases and iOS requirement there is nothing between them.

PDB Viewer is free to download; SwiftCard costs $12.99 up front. SwiftCard sells 2 in-app purchases, starting at $2.99 per month and PDB Viewer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

SwiftCard ships an update every 4 weeks, PDB Viewer monthly. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SwiftCard | PDB Viewer |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | **[4.2 (74 ratings)](https://appshunter.io/ios/app/swiftcard-flashcard-maker/id1194924993/reviews)** | — |
| Number of ratings | **74** | — |
| Positive reviews | 72.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Monthly |
| Monetization | Freemium | — |
| Size | 68 MB | 2 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [The Basic Software Company](https://appshunter.io/developer/1014233827) | [Qvyshift LLC](https://appshunter.io/developer/1536442361) |

## What reviewers say

### SwiftCard

[App page](https://appshunter.io/ios/app/swiftcard-flashcard-maker/id1194924993)

Create and study unlimited flashcards with timed tests and progress tracking. Features intelligent testing algorithms to prioritize subjects and offers cloud storage for syncing across devices. Share your study libraries with friends for collaborative learning.

**Highlights:** Unlimited flashcard creation, Timed and untimed tests, Progress analytics, Cloud storage and syncing, Library sharing, Custom images and drawings, Searchable knowledge library

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SwiftCard Pro | $2.99 | per month |
| SwiftCard Cloud Storage Sync | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use and intuitive
- 🚀 Creating flashcards swiftly
- 💡 Better information retention
- 👍 Well organized app
- 👍 Good for studying on the go

**What reviewers complain about**

- 🐛 Font size cannot be changed
- 🐛 Pictures can't be copied/pasted
- 🐛 Syncing requires subscription
- 🐛 iCloud sync not used
- 🐛 Test types not working as advertised

**Reported bugs**

- Cards disappear after closing and reopening
- Test types not working as advertised (Least Recently Tested, Swift Card Importance, Random)
- Pictures move accidentally during testing
- Randomly deletes cards
- App freezes every 5 minutes

**Requested features**

- Allow font size adjustment
- Enable direct copy-pasting of images
- Improve test type functionality
- Implement iCloud syncing
- Fix card disappearance bug


### PDB Viewer

[App page](https://appshunter.io/ios/app/pdb-viewer-3d-molecules/id6777468488)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDB Viewer Pro | $9.99 | one-time |


## Frequently asked questions

### Is SwiftCard free?

SwiftCard costs $12.99, and also offers in-app purchases.

### Is PDB Viewer free?

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

### Do SwiftCard or PDB Viewer have ads?

Neither SwiftCard nor PDB Viewer shows ads.

### Which is updated more often, SwiftCard or PDB Viewer?

SwiftCard ships an update every 4 weeks, and PDB Viewer monthly. Most recently, SwiftCard was updated on October 24, 2026 and PDB Viewer on October 16, 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.*