PostureCHEKCKER vs Plank Music
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Plank Music
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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
Verdict
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
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.
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.
| Parameter | PostureCHEKCKER | Plank Music |
|---|---|---|
| Price | $6.99 | Free — better |
| Rating | 3.3 (3 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 5 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Medic Engineering K.K. | Shu En Chien |
In-app purchases
PostureCHEKCKER
No in-app purchases
Plank Music
No in-app purchases









