Comparison

EDSP4 vs Material Removal Rate

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

Head to head
About

EDSP4

A convenient and professional tuning app with Bluetooth 4.0 support. It offers 6 sound effect modes and 31-band EQ adjustment for a unique audio experience. The interface includes a player that supports USB playback.

Highlights
  • Bluetooth 4.0 connectivity
  • 6 built-in sound effect modes
  • 31-band equalizer adjustment
  • Player interface
  • USB playback support
Features
Read full description

一个便捷专业的调音APP,支持4.0蓝牙,内置6种音效模式,31段EQ调节。让您有不一样的听觉享受。播放器界面,支持U盘播放。

About

Material Removal Rate

Features
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Boost throughput and cut guesswork with the Material Removal Rate Calculator—your quick, reliable way to quantify MRR and tune cutting parameters for real-world results. Material removal rate is the volume removed per unit time and a direct indicator of cutting efficiency, cycle time, and profitability. Built for production decisions Get fast, consistent answers when you are comparing setups and tooling, verifying CAM programs on the floor, estimating cycle time and machine load, and balancing productivity versus tool life. What’s inside MRR calculators for Turning, Milling, Drilling, Grinding, and Grooving—enter depth and width of cut and feed to compute removal volume instantly. Spindle Speed and Feed Rate helpers turn SFM, RPM, IPT, and IPM into actionable machine settings. Chip Load (Feed per Tooth) guidance helps you hit proper chip thickness per edge and avoid rubbing or overload. Make better trade-offs Finding the sweet spot between speed and feed protects tool life while keeping parts moving. The app helps you understand those levers so you can push feed where it matters, trim cutting speed when heat is climbing, and keep surface finish on spec. Why it matters Faster setup validation by quantifying removal rates when you change cutters, holders, or offsets. Repeatable results by standardizing shop math across shifts and machines. Less waste and more parts by reducing trial and error and moving toward predictable cycle times. Whether you are roughing aluminum, profiling stainless, drilling deep holes, or grinding to finish, this calculator brings proven shop math to your pocket so you can decide with data, not hunches.

Screenshots

EDSP44 screens
Material Removal Rate4 screens

Verdict

The call

The clearest difference is price: EDSP4 at Free against Material Removal Rate's $1.99. EDSP4 also leads on iOS requirement (9.0 vs 16.2). Material Removal Rate's advantage is update cadence (every 8 months vs every 19 months). On 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

CostPrice · In-app purchases · Ads · Monetization

EDSP4 is free to download; Material Removal Rate costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

EDSP4 ships an update every 19 months, Material Removal Rate every 8 months. The most recent releases landed on October 11, 2026 and October 18, 2026 respectively.

Scorecard3 real differences · 5 level
EDSP4 versus Material Removal Rate: the parameters behind the verdict, then further details
ParameterEDSP4Material Removal Rate
PriceFree — better$1.99
Positive reviews50.0% of reviews—
Update frequencyEvery 19 monthsEvery 8 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS9.0 — better16.2
Further details — not scored
Size51 MB3 MB
Age rating4+4+
DeveloperCheng Pu ChiangVladislav Zhirnov

In-app purchases

None

EDSP4

No in-app purchases

None

Material Removal Rate

No in-app purchases

Questions

Is EDSP4 free?
EDSP4 is free to download, with no in-app purchases.
Is Material Removal Rate free?
Material Removal Rate costs $1.99, with no in-app purchases.
Do EDSP4 or Material Removal Rate have ads?
Neither EDSP4 nor Material Removal Rate shows ads.
Which is updated more often, EDSP4 or Material Removal Rate?
EDSP4 ships an update every 19 months, and Material Removal Rate every 8 months. Most recently, EDSP4 was updated on October 11, 2026 and Material Removal Rate on October 18, 2026.

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