# Spaced Retrieval Therapy vs MemoryAid Lite

The clearest difference is price: MemoryAid Lite at Free against Spaced Retrieval Therapy's $9.99. Spaced Retrieval Therapy's advantage is update cadence (every 18 months vs every 47 months) and iOS requirement (9.0 vs 12.0). On ads, in-app purchases and device support there is nothing between them.

MemoryAid Lite is free to download; Spaced Retrieval Therapy costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Spaced Retrieval Therapy ships an update every 18 months, MemoryAid Lite every 47 months. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Spaced Retrieval Therapy | MemoryAid Lite |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.7 (32 ratings)](https://appshunter.io/ios/app/spaced-retrieval-therapy/id498787795/reviews)** | — |
| Number of ratings | **32** | — |
| Positive reviews | 64.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 18 months** | Every 47 months |
| Monetization | Paid | — |
| Size | 5 MB | 14 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tactus Therapy Solutions Ltd.](https://appshunter.io/developer/438070002) | [DREAM ON LINE CO., LTD.](https://appshunter.io/developer/744835198) |

## What reviewers say

### Spaced Retrieval Therapy

[App page](https://appshunter.io/ios/app/spaced-retrieval-therapy/id498787795)

This app uses a scientifically proven method to help individuals with memory impairments, such as dementia, recall important information. It acts as an interval timer, automatically adjusting prompt timing based on user responses to reinforce memory over time.

**Highlights:** Spaced retrieval training method, Automatic interval adjustment, Data tracking and reporting, Background operation, Subtle sound and visual prompts, Email finished reports

**In-app purchases:** none


### MemoryAid Lite

[App page](https://appshunter.io/ios/app/memoryaid-lite/id797404266)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spaced Retrieval Therapy free?

Spaced Retrieval Therapy costs $9.99, with no in-app purchases.

### Is MemoryAid Lite free?

MemoryAid Lite is free to download, with no in-app purchases.

### Do Spaced Retrieval Therapy or MemoryAid Lite have ads?

Neither Spaced Retrieval Therapy nor MemoryAid Lite shows ads.

### Which is updated more often, Spaced Retrieval Therapy or MemoryAid Lite?

Spaced Retrieval Therapy ships an update every 18 months, and MemoryAid Lite every 47 months. Most recently, Spaced Retrieval Therapy was updated on October 16, 2026 and MemoryAid Lite on October 5, 2026.

---

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