Comparison

PerformanceTest Mobile vs REC Disk Speed Test

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

Head to head
About

PerformanceTest Mobile

Objectively benchmark your mobile device's speed and performance with a suite of tests. Analyze CPU, disk, memory, and graphics capabilities to ensure your device is performing optimally. Track results online and make informed purchasing decisions.

Highlights
  • CPU speed tests
  • Disk read/write tests
  • Memory speed tests
  • 2D graphics rendering
  • 3D graphics rendering
  • Online result tracking
Features
Read full description

PassMark Software, the leader in PC benchmarks, now brings you benchmarks for mobile devices. Fast, easy to use, mobile device speed testing and benchmarking. PassMark PerformanceTest™ Mobile allows you to objectively benchmark a mobile device using a variety of different speed tests. *Find out if your device is performing at its best. *View past results online at http://www.iphonebenchmark.net. *Measure the effect of configuration changes and upgrades. *Make objective independent measurements on which to base your purchasing decision. Seventeen standard benchmark tests are available in five test suites! Test Suites: *CPU Tests - Mathematical operations, compression, encryption and more *Disk Tests - Reading and writing files to internal storage *Memory Tests - Read and Write tests *2D Graphics Tests - Simple & Complex Vectors and image rendering and filters tests *3D Graphics Tests - Simple bouncing ball test, a more complex scenes, and a Space Battle Test using Unity.

About

REC Disk Speed Test

This utility app tests the write speed of your USB-C external drives on compatible iPhones. It provides a clear verdict on whether your drive can handle demanding video formats like ProRes, ensuring smooth recordings.

Highlights
  • Real write speed measurement (MB/s)
  • Color-coded drive readiness verdict
  • Format-by-format compatibility breakdown
  • File system support check
  • Drive details (name, capacity, free space)
Read full description

Never lose a shot to a slow drive. Recording ProRes to an external SSD is one of the best things you can do with your iPhone Pro, until the drive can't keep up and your footage stutters, drops frames or stops recording. REC Disk Speed Test tells you whether your drive is up to the job before you hit record. Plug in your USB-C drive, tap Start, and get a clear answer in seconds. WHAT YOU GET • Real write speed: See exactly how fast your drive writes, in MB/s, measured on your own iPhone. • A clear verdict: Color-coded results tell you at a glance whether your drive is ready for everything, most things, or only lighter formats. • Format-by-format breakdown: Check marks for HEVC 4K60, HEVC HDR, and ProRes 10-bit HDR at 1080p30, 4K30 and the demanding 4K60. • File system check: Find out right away whether your drive's format is supported for video capture, so you don't discover a problem on set. • Drive details: Name, capacity and free space, all on one screen. PERFECT FOR • Filmmakers and content creators shooting ProRes on iPhone • Testing a new SSD before a shoot, or before you buy more • Comparing drives, cables and enclosures to find the fastest setup • Peace of mind before an important recording Free, simple, and built by the team behind REC and Photon Camera. FROM LATENITESOFT Pair your tested drive with REC to record cinematic video in any format straight to external storage, or with Photon Camera to shoot stunning photos directly to your drive. Requires iPhone 15 Pro or a later Pro model with USB-C external storage support.

Screenshots

PerformanceTest Mobile1 screens
REC Disk Speed Test4 screens

Verdict

The call

PerformanceTest Mobile and REC Disk Speed Test both sit at 3.3 stars, but that hides the real split: 53% of PerformanceTest Mobile's written reviews are positive against 0% of REC Disk Speed Test's. PerformanceTest Mobile also leads on update cadence (every 6 weeks vs every 37 months) and ratings volume (56 vs 6). On price, rating, 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

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

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 3.3 for PerformanceTest Mobile against 3.3 for REC Disk Speed Test. That said, the two scores are not equally well evidenced: PerformanceTest Mobile has 56 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 53% of PerformanceTest Mobile's written reviews are positive against 0% of REC Disk Speed Test's.

UpkeepUpdate frequency

PerformanceTest Mobile ships an update every 6 weeks, REC Disk Speed Test every 37 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
PerformanceTest Mobile versus REC Disk Speed Test: the parameters behind the verdict, then further details
ParameterPerformanceTest MobileREC Disk Speed Test
PriceFreeFree
Rating3.3 (56 ratings) — better3.3 (6 ratings)
Positive reviews52.8% of reviews — better0.0% of reviews
Number of ratings56 — better6
Update frequencyEvery 6 weeks — betterEvery 37 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS11.0 — better18.0
Further details — not scored
Size88 MB1 MB
Age rating4+17+
DeveloperPassMark Software IncLateNiteSoft S.L.

Customer experience

PerformanceTest Mobile

All ratings56 ratings
Positive51.8%
Neutral12.5%
Negative35.7%
Written reviews89 reviews
Positive52.8%
Neutral12.4%
Negative34.8%

REC Disk Speed Test

All ratings6 ratings
Positive50.0%
Neutral16.7%
Negative33.3%
Written reviews4 reviews
Positive0.0%
Neutral25.0%
Negative75.0%

Bugs and requests

PerformanceTest Mobile

Reported bugs

25 issues
  • Crashes after graphics tests on iOS 18
  • Auto-rotate orientation bug after benchmark
  • Phone model reported incorrectly
  • Tests not strenuous enough (limited 60FPS)
  • App crashes on iOS 15.5
Show 20 more
  • App crashes on A12 devices
  • Benchmark does not continue on graphics tests with older iOS versions
  • App crashes on iOS 7.1.2
  • App crashes during 2D SIMPLE testing
  • App crashes during 2D testing on iPhone 12 mini
  • App crashes on iPhone 11
  • App crashes on iPhone XS with iOS 13.4.1
  • App freezes at the start of the “Memory” suite
  • App crashes at the 2D complex vectors test
  • App crashes on iPhone XR
  • App force quits during graphics test
  • App crashes on launch on iPhone 7 (iOS 13.3)
  • App crashes on launch on iPhone 6s Plus
  • Crashes on the last test, clearing results
  • Submit results error on multiple iOS devices
  • 2D and 3D tests are choppy on new iPad pros
  • Graphic 3D test limited to 60FPS and doesn't fluctuate
  • Memory read test shows blank or wildly different numbers
  • Inconsistencies in online vs. phone results (Memory Read missing, CPU/Memory off)
  • 2D transparent vector test gives highly variable results

Requested features

9 requests
  • Update for newer iOS versions and devices
  • Fix auto-rotate orientation bug
  • Add more tests (like Android counterpart)
  • Add comparison list/option to compare with common devices
  • Add option to compare personal previous tests
Show 4 more
  • Update UI and design
  • Support for larger screens and 64-bit processors
  • Add dark mode option
  • Add advanced analytics dashboard

REC Disk Speed Test

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

PerformanceTest Mobile

No in-app purchases

None

REC Disk Speed Test

No in-app purchases

Questions

Is PerformanceTest Mobile free?
PerformanceTest Mobile is free to download, with no in-app purchases.
Is REC Disk Speed Test free?
REC Disk Speed Test is free to download, with no in-app purchases.
Which has better reviews, PerformanceTest Mobile or REC Disk Speed Test?
PerformanceTest Mobile is rated higher. PerformanceTest Mobile averages 3.3 out of 5 from 56 ratings, while REC Disk Speed Test averages 3.3 from 6 ratings.
Do PerformanceTest Mobile or REC Disk Speed Test have ads?
Neither PerformanceTest Mobile nor REC Disk Speed Test shows ads.
Which is updated more often, PerformanceTest Mobile or REC Disk Speed Test?
PerformanceTest Mobile ships an update every 6 weeks, and REC Disk Speed Test every 37 months. Most recently, PerformanceTest Mobile was updated on November 1, 2026 and REC Disk Speed Test on November 3, 2026.

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