Comparison

Spaced Retrieval Therapy vs Voice Meter Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Spaced Retrieval Therapy

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
Read full description

"Love This App!" "Very Useful!" "Perfect!" "So Easy to Use!" "Great for my patients!" See why thousands of users around the world are raving about this app! People with memory impairments can become worried when they don't remember where they are or other important information. They may be unsafe when they forget to use a walker or apply the wheelchair breaks before standing. All of these facts and procedures can be engrained into memory using a repetitive and effective memory training procedure. This Spaced Retrieval Therapy app uses the scientifically-proven method of spaced retrieval training to help people with dementia or other memory impairments to recall important information. Recalling an answer over multiplying intervals of time, such as 1 minute, 2 minutes, 8 minutes, and so on, helps to cement the information in memory. Spaced Retrieval Therapy is an enhanced interval timer with independent data tracking and prompts. It automatically increases the time between prompts with correct responses and decreases it with incorrect ones. This app will help clinicians, family members, and students keep track of the intervals and performance as they practice up to 3 memory targets. *Put away your stopwatch and paper - this app is all you need! *Keeps track of expanding intervals and data so you don't have to *Works in the background while doing other therapy exercises or using other apps *Subtle sound and visual prompts let you know it’s time to ask again *Tracks accuracy and data automatically, & emails you the finished report "5 Stars - This app is a fantastic inclusion into my therapy toolbox. It is very useful in therapy and helps me keep track patient progress more efficiently." - App Store Review Speech-Language Pathologists, Occupational Therapists, Neuropsychologists, Teachers, Social Workers, and families can all use this simple technique & app to help clients and loved ones remember important information (names, safety procedures, orientation information, etc). Recommended by top experts in memory training and dementia therapy, Spaced Retrieval Therapy will make your life easier and your therapy more efficient. "***** Very Useful! I found this app to be extremely useful during therapy sessions. When juggling multiple activities it can be difficult to remember to cue a patient for each specific interval. This app makes spaced retrieval an easy way to incorporate prospective and short term memory tasks into treatment." - SLP on App Store Review Visit our website at http://tactustherapy.com/app/srt/ to link to several articles about this technique and its proven efficacy with dementia, aphasia, normal learners, and more. This app is also available as part of the Tactus Complete Therapy Toolkit and Tactus Cognitive Therapy Toolkit discount bundles for iPad users. Please note: This app is a timer and tracks data. Targets should be individually selected for the memory-impaired person to be relevant and meaningful. This app is not intended to be used alone by the memory-impaired person, but as a therapy tool by a clinician or family member trained in this technique.

About

Voice Meter Pro

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
Currently charting
Read full description

The "Voice Meter Pro" app for the iPad, iPhone and iPod touch, is a simple, but effective app that helps children with autism spectrum disorders (ASD's), voice disorders, or any other child (or adult) monitor the volume of their own voice in a Fun and Engaging way. Children with Asperger’s and other ASD’s often have difficulties producing the appropriate voice volume in different settings. Some children on the autism spectrum speak too quietly. Others speak too loudly. Still others do not compensate adequately for the social milieu or ambient noise level. Understanding abstract concepts, such as the volume of one’s voice, can be difficult for children with ASD's. It’s well understood that adding a visual component to the otherwise abstract concept can often be very helpful for individuals with ASD. OK so how does the app work? Well….if a child is talking to quietly a blue background with a cartoon character struggling to hear is displayed. If a child is talking too loudly the background changes to red and the character puts it’s fingers in its ears. If the volume level is acceptable a green background with a smiling happy character is displayed. • The on screen “volume thermometer” dynamically displays the volume level as it changes. • There’s a "Sensitivity" slider so the adult can adjust the volume sensitivity to suit both the user and the environment. • There’s also a "Dampening" slider. This helps avoid the meter bouncing around in between words by introducing a slight delay before any movement is shown on the “volume" thermometer. • To give the user total control over the app the Upper and Lower limits of the "Green" (acceptable volume area) can now be adjusted by the user. • For convenience the app works in both portrait and landscape modes on all the iPhone, iPod Touch and iPad. • the iPhone version of the app has a switch to enable the iPhone to vibrate should the upper threshold level be exceeded for longer than 4 seconds. We want to make this app the very best it can be and to this end we have included a feedback form inside the app for users to submit any issues or suggestions as to how it can be improved. Why not download the app and give it a try?...... you might find it a very useful tool.

Screenshots

Spaced Retrieval Therapy4 screens
Voice Meter Pro4 screens

Verdict

The call

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 (#85 vs unranked). On ads, in-app purchases, monetization model and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 5 level
Spaced Retrieval Therapy versus Voice Meter Pro: the parameters behind the verdict, then further details
ParameterSpaced Retrieval TherapyVoice Meter Pro
Price$9.99$6.99 — better
Rating4.7 (32 ratings) — better3.4 (10 ratings)
Positive reviews64.7% of reviews — better52.6% of reviews
Number of ratings32 — better10
Update frequencyEvery 18 monthsEvery 8 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#85 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.08.0 — better
Further details — not scored
Size5 MB14 MB
Age rating4+4+
DeveloperTactus Therapy Solutions Ltd.EDTECH MONSTER LIMITED

Customer experience

Spaced Retrieval Therapy

All ratings32 ratings
Positive90.6%
Neutral3.1%
Negative6.3%
Written reviews17 reviews
Positive64.7%
Neutral5.9%
Negative29.4%

Voice Meter Pro

All ratings10 ratings
Positive60.0%
Neutral10.0%
Negative30.0%
Written reviews19 reviews
Positive52.6%
Neutral5.3%
Negative42.1%

In-app purchases

None

Spaced Retrieval Therapy

No in-app purchases

None

Voice Meter Pro

No in-app purchases

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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