# Spaced Retrieval Therapy vs Voice Meter Pro

The clearest difference is rating: Spaced Retrieval Therapy at 4.7 against Voice Meter Pro's 3.4. Spaced Retrieval Therapy also leads on review sentiment (65% vs 53%) and ratings volume (32 vs 10). Voice Meter Pro's advantage is price ($6.99 vs $9.99) and chart position (#99 vs unranked). On ads, in-app purchases, monetization model and device support there is nothing between them.

Spaced Retrieval Therapy costs $9.99 and Voice Meter Pro $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Spaced Retrieval Therapy holds the better App Store score, 4.7 against 3.4. Both are backed by a comparable volume of ratings — 32 and 10 respectively. Written reviews point the same way: 65% of Spaced Retrieval Therapy's written reviews are positive against 53% of Voice Meter Pro's.

Spaced Retrieval Therapy ships an update every 18 months, Voice Meter Pro every 8 months. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Spaced Retrieval Therapy | Voice Meter Pro |
| --- | --- | --- |
| Price | $9.99 | **$6.99** |
| Rating | **[4.7 (32 ratings)](https://appshunter.io/ios/app/spaced-retrieval-therapy/id498787795/reviews)** | [3.4 (10 ratings)](https://appshunter.io/ios/app/voice-meter-pro/id686934049/reviews) |
| Number of ratings | **32** | 10 |
| Positive reviews | **64.7% of reviews** | 52.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 8 months** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#99** |
| Size | 5 MB | 14 MB |
| Requires iOS | 9.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tactus Therapy Solutions Ltd.](https://appshunter.io/developer/438070002) | [EDTECH MONSTER LIMITED](https://appshunter.io/developer/686934052) |

## 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


### Voice Meter Pro

[App page](https://appshunter.io/ios/app/voice-meter-pro/id686934049)

**Currently charting:** #99 Top Paid · Medical (US App Store)

This app helps children and adults, particularly those with autism spectrum disorders, monitor and control their voice volume. It uses visual cues like colored backgrounds and cartoon characters to indicate if the volume is too low, too high, or just right.

**Highlights:** Visual volume thermometer, Adjustable sensitivity slider, Dampening slider for smooth meter movement, Customizable green zone limits, Portrait and landscape modes, iPhone vibration alert

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

**In-app purchases:** none


## Frequently asked questions

### Is Spaced Retrieval Therapy free?

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

### Is Voice Meter Pro free?

Voice Meter Pro costs $6.99, with no in-app purchases.

### Which has better reviews, Spaced Retrieval Therapy or Voice Meter Pro?

Spaced Retrieval Therapy is rated higher. Spaced Retrieval Therapy averages 4.7 out of 5 from 32 ratings, while Voice Meter Pro averages 3.4 from 10 ratings.

### Do Spaced Retrieval Therapy or Voice Meter Pro have ads?

Neither Spaced Retrieval Therapy nor Voice Meter Pro shows ads.

### Which is updated more often, Spaced Retrieval Therapy or Voice Meter Pro?

Spaced Retrieval Therapy ships an update every 18 months, and Voice Meter Pro every 8 months. Most recently, Spaced Retrieval Therapy was updated on October 19, 2026 and Voice Meter Pro on October 7, 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.*