# Memory Helper vs Void Card

The clearest difference is in-app purchases: Void Card at none against Memory Helper's 4. Memory Helper's advantage is update cadence (weekly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Memory Helper sells 4 one-off in-app purchases. Void Card asks for nothing beyond the download.

Memory Helper ships an update weekly, Void Card every 3 months. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Memory Helper | Void Card |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (65 ratings)](https://appshunter.io/ios/app/memory-helper-srs-review/id1113262919/reviews)** | — |
| Number of ratings | **65** | — |
| Positive reviews | 84.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 96 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [剑津 付](https://appshunter.io/developer/1113262918) | [星凌 陈](https://appshunter.io/developer/937700129) |

## What reviewers say

### Memory Helper

[App page](https://appshunter.io/ios/app/memory-helper-srs-review/id1113262919)

This app helps you remember information by scheduling reviews at scientifically optimal times based on the Ebbinghaus forgetting curve. It offers flexible organization and review options to maximize learning efficiency and minimize wasted effort.

**Highlights:** Spaced repetition scheduling, Customizable review curves, Organize with types and tags, Search and image support, Markdown syntax support, Calendar view for scheduling, Cloud synchronization

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Subscription | $1.99 | one-time |
| 6 Months Subscription | $6.99 | one-time |
| 1 Year Subscription | $9.99 | one-time |
| 3 Years Subscription | $19.99 | one-time |

**What reviewers like**

- 👍 Very useful for studying
- 👍 Good for remembering words
- 👍 Simple and convenient
- 👍 Intelligent adjustment function
- 👍 Cost-effective subscription

**What reviewers complain about**

- 🐛 Login issues
- 🐛 Cannot register
- 🐛 Poor English pronunciation
- 🐛 Refund issues
- 🐛 App not fully translated

**Reported bugs**

- 🐛 Cannot log in with WeChat
- 🐛 Cannot register with email or WeChat
- 🐛 English pronunciation is poor
- 🐛 Cannot find refund option
- 🐛 App not fully translated to English

**Requested features**

- 💡 Open backend API for integrations
- 💡 Add images
- 💡 Add audio recording
- 💡 One-time payment model
- 💡 Sync with web/desktop version


### Void Card

[App page](https://appshunter.io/ios/app/void-card/id6782636210)

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

**In-app purchases:** none


## Frequently asked questions

### Is Memory Helper free?

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

### Is Void Card free?

Void Card is free to download, with no in-app purchases.

### Do Memory Helper or Void Card have ads?

Neither Memory Helper nor Void Card shows ads.

### Which is updated more often, Memory Helper or Void Card?

Memory Helper ships an update weekly, and Void Card every 3 months. Most recently, Memory Helper was updated on November 2, 2026 and Void Card on October 25, 2026.

---

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