# Questionnaire App vs Deckbase

The clearest difference is in-app purchases: Questionnaire App at none against Deckbase's 4. Questionnaire App also leads on ads (none vs shown) and iOS requirement (12.1 vs 17.0). Deckbase's advantage is update cadence (every 4 days vs every 9 days). On price and device support there is nothing between them.

Both are free to download. Deckbase sells 4 in-app purchases, starting at $5.99 per month. Questionnaire App asks for nothing beyond the download.

Questionnaire App ships an update every 9 days, Deckbase every 4 days. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Questionnaire App | Deckbase |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (3 ratings)](https://appshunter.io/ios/app/deckbase-ai-flashcard-maker/id6760248255/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 days | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 45 MB | 106 MB |
| Requires iOS | **12.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Timothy Wong](https://appshunter.io/developer/1569848489) | [Yosuke Sakurai](https://appshunter.io/developer/1706591331) |

## What reviewers say

### Questionnaire App

[App page](https://appshunter.io/ios/app/questionnaire-app/id1569848487)

**Features:** macOS Compatibility

**In-app purchases:** none


### Deckbase

[App page](https://appshunter.io/ios/app/deckbase-ai-flashcard-maker/id6760248255)

This AI-powered study assistant generates flashcards from various file types and chat inputs. It utilizes spaced repetition for effective long-term memory retention and offers AI-generated images and audio for enhanced learning.

**Highlights:** AI chat assistant for instant flashcard generation, AI image and audio generation for mnemonic aids, Bulk flashcard creation from documents and files, OCR for generating cards from photos and scans, Spaced repetition for memory retention, Clean and focused study interface

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Month | $5.99 | per month |
| Pro Month | $11.99 | per month |
| Basic Year | $59.00 | per year |
| Pro Year | $119.00 | per year |


## Frequently asked questions

### Is Questionnaire App free?

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

### Is Deckbase free?

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

### Do Questionnaire App or Deckbase have ads?

Deckbase shows ads; Questionnaire App does not.

### Which is updated more often, Questionnaire App or Deckbase?

Questionnaire App ships an update every 9 days, and Deckbase every 4 days. Most recently, Questionnaire App was updated on October 9, 2026 and Deckbase on October 11, 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.*