Comparison

PostureCHEKCKER vs Plank Music

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

Head to head
About

PostureCHEKCKER

Analyze your posture by marking key points on a full-body photograph. The app calculates angles to assess your alignment and provides results for total, neck, hip, and knee angles. Save your posture analysis as a JPEG.

Highlights
  • Posture analysis via photo
  • Marking of key body points
  • Calculation of total, neck, hip, and knee angles
  • Spirit level camera feature
  • Save results as JPEG
Read full description

Would you like to check your posture ? If the line which five points that are an ear, a shoulder, a hip, a knee and an ankle make is straight, your posture is very good ! 【Usage】 Step1. Prepare a photograph of a whole body which took from horizontal direction. Step2. Move the red marks to the positions shown below.   ① ear (tragion)   ② shoulder (acromion point)   ③ hip (greater trochanter)   ④ knee (back of kneepan)   ⑤ ankle Step3. Tap on calc., and then the results are displayed.   - total angle:angle between blue line and perpendicular line   - neck angle:angle between line(①-②) and perpendicular line   - hip angle:180-∠②③④   - knee angle:180-∠③④⑤ 【Topic】 - "PostureChecker plus" has the camera with a spirit level. Therefore you can get a straight photograph. - You can save the result as a JPEG format. 【Caution】 "PostureChecker plus" is not the one to diagnose any illness.

About

Plank Music

Features
Read full description

Elbows (or rod) is a popular sport in recent years, the core muscles for exercise and fitness is very helpful. In doing this exercise at the right time, there is a phenomenon often happens is that "They do not know their position is correct," the beginning of the body in a straight line, but a long time posture might run away. This App use music way to remind your posture is correct. When it is in the correct position, you hear the music (you can choose your own favorite songs in your phone), when there is no music, it means wrong position, you can adjust a little, until the music come back again, it means that you back to the correct position. Usage as follows: 1. Place the phone in the back of the man 2. The man do elbows, correct posture then press the button to mark 3. The man continue to do the elbows, keep the play of the music (The second step can be set only once, or can be set every time) Most importantly, while listening to music can make it easier to do the elbows. We hope you enjoy this app.

Screenshots

PostureCHEKCKER4 screens
Plank Music4 screens

Verdict

The call

The clearest difference is price: Plank Music at Free against PostureCHEKCKER's $6.99. Plank Music also leads on update cadence (every 2 weeks vs every 5 months) and iOS requirement (12.0 vs 15.0). 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

Plank Music is free to download; PostureCHEKCKER costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PostureCHEKCKER ships an update every 5 months, Plank Music every 2 weeks. The most recent releases landed on November 11, 2026 and January 6, 2026 respectively.

Scorecard3 real differences · 7 level
PostureCHEKCKER versus Plank Music: the parameters behind the verdict, then further details
ParameterPostureCHEKCKERPlank Music
Price$6.99Free — better
Rating3.3 (3 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 5 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size3 MB13 MB
Age rating4+4+
DeveloperMedic Engineering K.K.Shu En Chien

In-app purchases

None

PostureCHEKCKER

No in-app purchases

None

Plank Music

No in-app purchases

Questions

Is PostureCHEKCKER free?
PostureCHEKCKER costs $6.99, with no in-app purchases.
Is Plank Music free?
Plank Music is free to download, with no in-app purchases.
Do PostureCHEKCKER or Plank Music have ads?
Neither PostureCHEKCKER nor Plank Music shows ads.
Which is updated more often, PostureCHEKCKER or Plank Music?
PostureCHEKCKER ships an update every 5 months, and Plank Music every 2 weeks. Most recently, PostureCHEKCKER was updated on November 11, 2026 and Plank Music on January 6, 2026.

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