Comparison

Piano Prober vs Meta

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

Head to head

Piano Prober

Features

Read full description

Does your piano go out of tune? Is your piano tuned fine? The App can answer these questions for free. Follow the on-screen prompts to strike several piano keys, you can obtain the piano's tuning curve as well as a chart of these keys' pitch deviations. By these results, you can evaluate how much your piano is out of tune. This App based on our leading piano tuner technology. It provide very high detection accuracy and reliability. Feature: Automatically generating the tuning curve to adapt to the unique characteristics of each piano. More than 0.1 cents accuracy of pitch measurement. Probing with not muting unison strings makes it more simple and convenient. Note: To achieve 0.1 cents measurement accuracy, you should mute unison strings well, and keep the environment quiet, no interference. With not muting unison mode, the measurement accuracy is about 2 cents.

About

Screenshots

Piano Prober3 screens

Meta4 screens

Verdict

The call

The clearest difference is update cadence: Meta at every 2 weeks against Piano Prober's every 5 weeks. 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Piano Prober ships an update every 5 weeks, Meta every 2 weeks. The most recent releases landed on September 20, 2026 and September 26, 2026 respectively.

Scorecard1 real difference · 5 level

Piano Prober versus Meta: the parameters behind the verdict, then further details
Parameter	Piano Prober	Meta
Price	Free	Free
Update frequency	Every 5 weeks	Every 2 weeks — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	12.0 — better	13.0
Further details — not scored
Size	10 MB	58 MB
Age rating	4+	4+
Developer	绍军初	深圳市众鑫创展科技有限公司

In-app purchases

None

Piano Prober

No in-app purchases

None

Questions

Is Piano Prober free?

Piano Prober is free to download, with no in-app purchases.

Is Meta free?

Meta is free to download, with no in-app purchases.

Do Piano Prober or Meta have ads?

Neither Piano Prober nor Meta shows ads.

Which is updated more often, Piano Prober or Meta?

Piano Prober ships an update every 5 weeks, and Meta every 2 weeks. Most recently, Piano Prober was updated on September 20, 2026 and Meta on September 26, 2026.