Comparison

Spaced Retrieval Therapy vs SEMG

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

SEMG

Features
Read full description

XFT-2003 SEMG Biofeedback electrical stimulator is the XFT latest and new generation of multifunctional rehabilitation equipment, which can be used in rehabilitation department and neurological department in the hospital. This device has a variety of functions, such as Multimedia Interactive Game Triggered by sEMG signals, neuromuscular electrical stimulation, EMG feedback triggered electrical stimulation. The latest XFT-2003D sEMG Biofeedback FES is equipped with the APP. Almost all operations are done through the APP, which replaces the physical buttons on regular products.

Screenshots

Spaced Retrieval Therapy4 screens

Verdict

The call

The clearest difference is price: SEMG at Free against Spaced Retrieval Therapy's $9.99. Spaced Retrieval Therapy's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 15.0). On update cadence, ads and in-app purchases 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

SEMG 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.

UpkeepUpdate frequency

Spaced Retrieval Therapy ships an update every 18 months, SEMG every 12 months. The most recent releases landed on November 3, 2026 and November 2, 2026 respectively.

Scorecard3 real differences · 7 level
Spaced Retrieval Therapy versus SEMG: the parameters behind the verdict, then further details
ParameterSpaced Retrieval TherapySEMG
Price$9.99Free — better
Rating4.7 (32 ratings) — better—
Positive reviews64.7% of reviews—
Number of ratings32 — better—
Update frequencyEvery 18 monthsEvery 12 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS9.0 — better15.0
Further details — not scored
Size5 MB68 MB
Age rating4+12+
DeveloperTactus Therapy Solutions Ltd.Shenzhen XFT Medical Limited

In-app purchases

None

Spaced Retrieval Therapy

No in-app purchases

None

SEMG

No in-app purchases

Questions

Is Spaced Retrieval Therapy free?
Spaced Retrieval Therapy costs $9.99, with no in-app purchases.
Is SEMG free?
SEMG is free to download, with no in-app purchases.
Do Spaced Retrieval Therapy or SEMG have ads?
Neither Spaced Retrieval Therapy nor SEMG shows ads.
Which is updated more often, Spaced Retrieval Therapy or SEMG?
Spaced Retrieval Therapy ships an update every 18 months, and SEMG every 12 months. Most recently, Spaced Retrieval Therapy was updated on November 3, 2026 and SEMG on November 2, 2026.

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