Comparison

My Device ID by AppsFlyer vs Preserve by MultiSync

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

Head to head
About

My Device ID by AppsFlyer

Easily view and share your device identifiers, including IDFA and IDFV. This tool allows you to quickly whitelist your device as a test device within your AppsFlyer account, crucial for SDK integration testing.

Highlights
  • View Device ID (IDFA, IDFV)
  • Share Device ID
  • Whitelist test device for AppsFlyer
  • Directly add device to AppsFlyer account
  • Facilitates SDK integration testing
Features
Read full description

With My Device ID by AppsFlyer you can easily view and share your Device ID including IDFA and IDFV. You can also add your device as a whitelisted test device to your AppsFlyer account directly from the app. Whitelisting a test device in your AppsFlyer account is an important part of testing your integration with AppsFlyer SDK. For more information about whitelisting a test device: https://support.appsflyer.com/hc/en-us/articles/207031996--Whitelisting-a-Test-Device AppsFlyer is the world's leading mobile attribution & marketing analytics platform, helping app marketers around the world make better decisions. Learn more at www.AppsFlyer.com

About

Preserve by MultiSync

This tool assists transplant clinicians and specialists in selecting the optimal organ preservation method and device. It provides evidence-based recommendations, calculates donor risk scores, and offers outcome predictions, all while ensuring data privacy and offline functionality.

Highlights
  • Organ preservation method recommendations
  • Preservation device suggestions
  • Donor risk score calculation
  • Outcome predictions
  • Offline functionality
  • Pseudonymous assessment saving
Features
Read full description

MultiSync Preserve is an evidence-based decision-support tool for organ preservation, built for transplant clinicians, organ procurement coordinators, and perfusion specialists. Enter a few donor and clinical parameters and Preserve recommends the most appropriate preservation method and device — grounded in published, peer-reviewed clinical evidence. — WHAT IT DOES — • Covers four organs: kidney, liver, heart, and lung • Recommends a preservation method (Static Cold Storage, HMP, HOPE, NMP, EVLP, OCS) with a primary and alternative option • Suggests specific preservation devices with FDA-approval status and cost ranges • Calculates a donor risk score and organ-specific outcome predictions (DGF, EAD, PGD) plus 1- and 3-year graft-survival estimates • Explains the clinical reasoning behind every recommendation • Surfaces relevant warnings (e.g., extended cold-ischemia time, marginal donor criteria) • Cites the underlying trials and studies — Moers (NEJM), Nasralla (Nature), and more — BUILT FOR THE FIELD — • A guided, four-step workflow: organ → donor info → clinical parameters → results • Save assessments to history under a pseudonym — no patient identifiers are stored • Works offline; assessments sync securely when you're back online — PRIVACY & SECURITY — • Face ID / passcode lock with configurable auto-lock • On-device encryption of saved data • No patient-identifying information is collected or required — IMPORTANT — MultiSync Preserve is a decision-support and educational reference tool for qualified medical professionals. It does not provide a diagnosis and is not a substitute for independent clinical judgment. Final preservation decisions must be made by qualified medical professionals considering all relevant clinical factors for each individual case. Learn more at multisync.io.

Screenshots

My Device ID by AppsFlyer1 screens
Preserve by MultiSync4 screens

Verdict

The call

The clearest difference is rating: Preserve by MultiSync at 5.0 against My Device ID by AppsFlyer's 3.8. My Device ID by AppsFlyer's advantage is update cadence (every 8 days vs every 6 weeks) and ratings volume (41 vs 1). On price, ads, in-app purchases and monetization model 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Preserve by MultiSync holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: My Device ID by AppsFlyer has 41 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

My Device ID by AppsFlyer ships an update every 8 days, Preserve by MultiSync every 6 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
My Device ID by AppsFlyer versus Preserve by MultiSync: the parameters behind the verdict, then further details
ParameterMy Device ID by AppsFlyerPreserve by MultiSync
PriceFreeFree
Rating3.8 (41 ratings)5.0 (1 ratings) — better
Positive reviews62.5% of reviews—
Number of ratings41 — better1
Update frequencyEvery 8 days — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size11 MB1 MB
Age rating4+4+
DeveloperAppsFlyerMultiSync Inc.

In-app purchases

None

My Device ID by AppsFlyer

No in-app purchases

None

Preserve by MultiSync

No in-app purchases

Questions

Is My Device ID by AppsFlyer free?
My Device ID by AppsFlyer is free to download, with no in-app purchases.
Is Preserve by MultiSync free?
Preserve by MultiSync is free to download, with no in-app purchases.
Which has better reviews, My Device ID by AppsFlyer or Preserve by MultiSync?
Preserve by MultiSync is rated higher. My Device ID by AppsFlyer averages 3.8 out of 5 from 41 ratings, while Preserve by MultiSync averages 5.0 from 1 ratings.
Do My Device ID by AppsFlyer or Preserve by MultiSync have ads?
Neither My Device ID by AppsFlyer nor Preserve by MultiSync shows ads.
Which is updated more often, My Device ID by AppsFlyer or Preserve by MultiSync?
My Device ID by AppsFlyer ships an update every 8 days, and Preserve by MultiSync every 6 weeks. Most recently, My Device ID by AppsFlyer was updated on November 2, 2026 and Preserve by MultiSync on October 31, 2026.

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