MPI vs Optima Trade+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MPI
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The MPI-2 Session Recorder application is a specialized tool designed to record videos and send them to one’s clinician during the MPI-2 Treatment Program speaking tasks. This is a companion application to the MPIi-2 Treatment Program (at no extra cost) and must be installed on an iPad or iPhone separate from the one that will be used by the client during MPI-2 treatment. The Modifying Phonation Intervals (MPI-2) Stuttering Treatment Program is designed to teach mainly adolescents and adults who stutter to achieve generalized stutter-free and normal sounding speech by speaking with a reduced number of short intervals of phonation (PI=phonation interval). The program is a performance-contingent, biofeedback system that employs software (iOS MPI-2 application) and hardware (iPad, iPad Mini, or iPhone and a throat microphone/accelerometer with single earpiece assembly). Targeted PIs are recorded from the surface of the speaker’s throat and their occurrence is automatically fed back to the speaker during treatment. Special advantages of the MPI-2 are: its development by expert clinical researchers as a complete evidence-based treatment program – including establishment, transfer and maintenance of fluent speech, and its portability –which facilitates a significant role for the client in managing the treatment and the ability to practice newly learned speech patterns away from the clinic setting while being monitored by the software and/or the clinician. A general description of the MPI-2 Stuttering Treatment Program, along with pre- and post-treatment speaking samples, as well as links to the research publications underlying development of the MPI-2, can be accessed at the MPI-2 website at http://www.mpi2.com. In order to start the treatment program, the potential client needs to install the MPI-2 Stuttering Treatment Program application first on an iPhone or iPad, and then choose a clinician (via the “Find Clinician” button on the home screen). After the request has been received, the clinician will contact you to evaluate your condition and discussion additional details, including the cost of the clinician’s clinical services. All MPI-2 clinicians have earned master’s degrees as speech-language pathologists and the Certificate of Clinical Competence from the American Speech-Language Hearing Association and are also certified as MPI-2 clinicians.
Optima Trade+
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We operate an online mobile trading application, where you can swiftly trade your Gift Card for cash, at exclusive rates. With an easy-to-navigate platform, traders' needs are paramount to us. Key features ⁃ wide choice of gift cards ⁃ 24hrs customer service ⁃ Easy to navigate platform ⁃ Swift and Fast withdrawal ⁃ No extra charges involved - No withdrawal limits Our application is strictly an online-based application and as such will require a good internet connection to function properly.
Screenshots
Verdict
The clearest difference is update cadence: MPI at every 2 months against Optima Trade+'s every 10 months. MPI also leads on iOS requirement (9.0 vs 12.0). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
MPI ships an update every 2 months, Optima Trade+ every 10 months. The most recent releases landed on September 25, 2026 and October 11, 2026 respectively.
| Parameter | MPI | Optima Trade+ |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 18 MB | 46 MB |
| Age rating | 4+ | 17+ |
| Developer | Sirma Medical Systems JSC | OPTIMA TECHNOLOGY SOLUTIONS |
In-app purchases
MPI
No in-app purchases
Optima Trade+
No in-app purchases









